paut procedure - mru adsorber pci rev. 0 (thickness 83-88 mm)

46
ULTRASONIC PHASED ARRAY EXAMINATION PROCEDURE FOR 83 MM - 88 MM THICK DOUBLE BEVEL WELDS IN CLAD PRESSURE VESSELS MRU ADSORBER (610-V-231) FABRICATION PROJECT PAGE 1 of 46 DOCUMENT NUMBER: REVISION: 0 DATE OF ISSUANCE: May 20, 2013 IMSN-SSB/UT/34 REVISION DATE: -- EFFECTIVE DATE: May 20, 2013 NO. CONTENT PAGE APPROVED BY CERTIFICATE OF DEMONSTRATION 2 of 46 1.0 SCOPE 3 of 46 2.0 CODES AND REFERENCES 3 of 46 3.0 PERSONNEL QUALIFICATION 3 of 46 4.0 EQUIMENT AND MATERIALS 3 of 46 5.0 COLLECTION HARDWARE SETUP 5 of 46 6.0 ASSESMENT OF PHASED ARRAY INSTRUMENT 12 of 46 7.0 EXAMINATION SYSTEM CALIBRATION 13 of 46 NDE LEVEL III 8.0 DATUM OF THE WELDS AND LENGTH OF SCANNING 16 of 46 OPERATION DIRECTOR 9.0 SURFACE PREPARATION 17 of 46 10.0 PRELIMINARY GO-NO GO SCAN AND POST EXAMINATION SCAN 17 of 46 11.0 EXAMINATION PROCEDURE 17 of 46 12.0 OFFLINE DATA ANALYSIS AND SIZING OF INDICATIONS 18 of 46 13.0 SIZE AND CATEGORY OF FLAWS 21 of 46 14.0 ACCEPTANCE CRITERIA 21 of 46 15.0 DATA PACKAGE AND REPORTING 22 of 46 NDE LEVEL II Exhibit A : Ultrasonic Instrument Linearity Form 31 of 46 Exhibit B : Phased Array UT Examination Report Form 32 of 46 Exhibit C : Two-Sided Scan Plan for Welding Detail no. 1 34 of 46 Exhibit D : One-Sided Scan Plan for Welding Detail no. 2 38 of 46 Exhibit E : One-Sided Scan Plan for Welding Detail no. 1 42 of 46 REVISION STATUS DISTRIBUTION Rev. No. DATE DESCRIPTION 0 May 20, 2013 Issued for Customer Review & Approval Master : SSB Copy : IMSN Copy : PCI Copy : …………….. Copy : ……………..

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Phased Array procedure on clad pressure vessel 88 mm+ 4 mm clad

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Page 1: PAUT Procedure - MRU Adsorber PCI Rev. 0 (Thickness 83-88 Mm)

ULTRASONIC PHASED ARRAY EXAMINATION PROCEDURE FOR 83 MM - 88 MM THICK DOUBLE

BEVEL WELDS IN CLAD PRESSURE VESSELS MRU ADSORBER (610-V-231) FABRICATION PROJECT

PAGE1 of 46

DOCUMENT NUMBER:

REVISION: 0

DATE OF ISSUANCE: May 20, 2013

IMSN-SSB/UT/34

REVISION DATE: --

EFFECTIVE DATE: May 20, 2013

NO. CONTENT PAGE APPROVED BY

CERTIFICATE OF DEMONSTRATION 2 of 46

1.0 SCOPE 3 of 46

2.0 CODES AND REFERENCES 3 of 46

3.0 PERSONNEL QUALIFICATION 3 of 46

4.0 EQUIMENT AND MATERIALS 3 of 46

5.0 COLLECTION HARDWARE SETUP 5 of 46

6.0 ASSESMENT OF PHASED ARRAY INSTRUMENT 12 of 46

7.0 EXAMINATION SYSTEM CALIBRATION 13 of 46 NDE LEVEL III

8.0 DATUM OF THE WELDS AND LENGTH OF SCANNING 16 of 46

OPERATION DIRECTOR

9.0 SURFACE PREPARATION 17 of 46

10.0 PRELIMINARY GO-NO GO SCAN AND POST

EXAMINATION SCAN 17 of 46

11.0 EXAMINATION PROCEDURE 17 of 46

12.0 OFFLINE DATA ANALYSIS AND SIZING OF INDICATIONS 18 of 46

13.0 SIZE AND CATEGORY OF FLAWS 21 of 46

14.0 ACCEPTANCE CRITERIA 21 of 46

15.0 DATA PACKAGE AND REPORTING 22 of 46

NDE LEVEL II

Exhibit A : Ultrasonic Instrument Linearity Form 31 of 46

Exhibit B : Phased Array UT Examination Report Form 32 of 46

Exhibit C : Two-Sided Scan Plan for Welding Detail no. 1 34 of 46

Exhibit D : One-Sided Scan Plan for Welding Detail no. 2 38 of 46

Exhibit E : One-Sided Scan Plan for Welding Detail no. 1 42 of 46

REVISION STATUS DISTRIBUTION

Rev. No. DATE DESCRIPTION

0 May 20, 2013 Issued for Customer Review & Approval Master : SSB

Copy : IMSN

Copy : PCI

Copy : ……………..

Copy : ……………..

Page 2: PAUT Procedure - MRU Adsorber PCI Rev. 0 (Thickness 83-88 Mm)

ULTRASONIC PHASED ARRAY EXAMINATION PROCEDURE FOR 83 MM - 88 MM THICK DOUBLE BEVEL

WELDS IN CLAD PRESSURE VESSELS MRU ADSORBER (610-V-231) FABRICATION PROJECT

PROC. NO. : IMSN-SSB/UT/34

REV. NO. : 0

DATE : May 20, 2013

PAGE : Page 2 of 46

Certificate of Demonstration

The NDE Procedure below:

Title : ULTRASONIC PHASED ARRAY EXAMINATION PROCEDURE FOR

83 MM - 88 MM THICK DOUBLE BEVEL WELDS IN CLAD

PRESSURE VESSELS

MRU ADSORBER (610-V-231) FABRICATION PROJECT

Document No. : IMSN-SSB/UT/34

Revision : 0

has been demonstrated in accordance with ASME B & PV Code Section V 2010 Edition

2011 Addenda, Paragraph T-150 and the requirements of the Code Section(s) referenced

in this procedure, and has met the requirements of PT. Sanggar Sarana Baja’s Quality

Control Manual to the satisfaction and acceptance of the Authorized Inspector.

Prepared by, Certified by, Accepted by,

NDE Level III SSB QC Superintendent Authorized Inspector

Page 3: PAUT Procedure - MRU Adsorber PCI Rev. 0 (Thickness 83-88 Mm)

ULTRASONIC PHASED ARRAY EXAMINATION PROCEDURE FOR 83 MM - 88 MM THICK DOUBLE BEVEL

WELDS IN CLAD PRESSURE VESSELS MRU ADSORBER (610-V-231) FABRICATION PROJECT

PROC. NO. : IMSN-SSB/UT/34

REV. NO. : 0

DATE : May 20, 2013

PAGE : Page 3 of 46

1. SCOPE

1.1 This procedure shall govern the requirements for ultrasonic detection, location, and evaluation of longitudinally oriented discontinuities (ultrasonic reflectors) within the weld and its heat affected zone in SA 516-70N material clad with SA-316L material.

1.2 This procedure is applicable in semi-automatic ultrasonic phased array examination of

Shell-to-shell or Shell-to-Head circumferential welds and longitudinal welds in Pressure Vessels with inside diameter greater than 3,600 mm and wall thicknesses from 83 mm up to 88 mm. The thickness of the clad material shall be between 3 mm up to 5 mm throughout the cross section of the weld and its base material.

1.3 This procedure is not intended to replace visual examination and shall also be

supplemented by manual UT procedure evaluating transversely oriented flaws.

1.4 Weld configurations to be examined (welding details and dimensions) shall follow PT. Sanggar Sarana Baja’s drawing no. 2012/MD/1029/03/610-V-231 Rev. 0.

2. CODES AND REFERENCES

2.1 ASME B & PV Code Section V Article 4, 2010 Edition 2011 Addenda. 2.2 ASME B & PV Code Section VIII Div. 1, 2010 Edition 2011 Addenda. 2.3 ASTM E 2491 – Standard Guide for Evaluating Performance Characteristics of Phased-

Array Ultrasonic Testing Instruments and Systems, July 2008. 2.4 Petro China International Jabung Spec. for Pressure Vessels Doc. No. BCD4-000-43-SPC-

4-001-00 Rev. 0. 2.5 IMSN’s NDE Personnel Qualification and Certification Procedure Doc. No.: IMSN/WP/01

Revision 0. 3. NDE PERSONNEL QUALIFICATION

Personnel performing ultrasonic examination, analyze data or interpret the result shall be certified as UT Level II or III in accordance with IMSN’s NDE Personnel Qualification and Certification Procedure Doc. No.: IMSN/WP/01 Revision 0 which complies with ASNT Doc. No. SNT-TC-1A 2006 Edition. The data package including flaw evaluations/characterizations shall be performed by two different UT Level II or Level III individuals. In addition, personnel who acquire and analyze UT data shall participate in the qualification of the procedure being used.

4. EQUIPMENT AND MATERIALS

4.1 Ultrasonic Instrument AGR TD Handy Scan 64/32 shall be used for the performance of UT Phased Array examination under this procedure.

4.2 Phased Array Probe and Cables The following phased array probe (integrated with probe cable) shall be used throughout the examination under this procedure.

Part Number Frequency (MHz)

Number of elements

Pitch (mm)

Active Aperture

(mm)

Elevation (mm)

External dimensions (mm)

L W H

5L32-PWZ3 5.0 32 1.0 32 10 40 26 30

Page 4: PAUT Procedure - MRU Adsorber PCI Rev. 0 (Thickness 83-88 Mm)

ULTRASONIC PHASED ARRAY EXAMINATION PROCEDURE FOR 83 MM - 88 MM THICK DOUBLE BEVEL

WELDS IN CLAD PRESSURE VESSELS MRU ADSORBER (610-V-231) FABRICATION PROJECT

PROC. NO. : IMSN-SSB/UT/34

REV. NO. : 0

DATE : May 20, 2013

PAGE : Page 4 of 46

5L32-PWZ3

4.3 Probe Wedge Examination under this procedure shall utilize the following probe wedge which shall be used in conjunction with the Phased Array probe specified in Par. 4.3 of this procedure.

Part Number Wedge Material

Natural Refracted Angle (in

Steel)

Sweep Angles

Probe Orientation

Wedge dimensions (mm)

L W H

SPWZ3-N55S Rexolite (VL = 2330 m/s) 55˚ SW 30˚ to

70˚ Normal 65 40 38

SPWZ3-N55S-IHC

4.4 Data Acquisition Software and Offline Data Analysis Software The software to be used for Phased Array data acquisition and for offline data analysis shall be TD Scan version 19.03.

4.5 Couplant Fresh water shall be used as couplant. The water shall be irrigated into the probe wedge and shall give continuous water path between the wedge and the examination surface throughout the examination. Glycerin shall be used as couplant between the phased array probe and the probe wedge.

4.6 Calibration Reference Block

The following blocks shall be used for equipment calibration and examination system calibration: a. IIW V1 block b. Non-piping Basic Calibration Blocks

4.7 General Requirement for Basic Calibration Block 4.7.1 Block Material Selection. The material from which the block is fabricated shall be a

P-1 material clad with P-8 material.

4.7.2 Block Quality. Prior to fabrication of the basic calibration block, the material shall be completely examined with a straight beam search unit in such manner that areas contain an indication exceeding the remaining back reflection shall be excluded from the beam paths required to reach the various calibration reflectors.

Page 5: PAUT Procedure - MRU Adsorber PCI Rev. 0 (Thickness 83-88 Mm)

ULTRASONIC PHASED ARRAY EXAMINATION PROCEDURE FOR 83 MM - 88 MM THICK DOUBLE BEVEL

WELDS IN CLAD PRESSURE VESSELS MRU ADSORBER (610-V-231) FABRICATION PROJECT

PROC. NO. : IMSN-SSB/UT/34

REV. NO. : 0

DATE : May 20, 2013

PAGE : Page 5 of 46

4.7.3 Surface Finish and Temperature. The finish on the scanning surfaces of the block shall be representative of the scanning surface finishes on the component to be examined. The temperature differential between the calibration block and examination surfaces shall be within 14˚C.

4.7.4 Cladding. The block shall be clad by the same welding procedure as the

production part. It is desirable to have component materials which have been clad before the drop outs or prolongations are removed. When the cladding is deposited using an automatic welding process, and, if due to block size, the automatic welding process is impractical, deposition of clad may be by the manual method

4.7.5 Heat Treatment. The calibration block shall receive at least the minimum

tempering treatment required by the material specification for the type and grade. If the component weld at the time of the examination has been heat treated, the block shall receive the same heat treatment.

4.8 Non-piping Basic Calibration Block 4.8.1 The Basic Calibration Block configuration, dimensions and reflector’s locations

shall be as shown in Figure 1.

4.8.2 Block Curvature. A flat Basic Calibration Block shall be used as seen Figure 1 of this procedure.

5. COLLECTION HARDWARE SETUP

The following hardware setups are derived from the scan plan as defined in Exhibit C, Exhibit D and Exhibit E of this procedure. The box for “Lock A-Scan Display Channel” shall be ticked [√]. 5.1 Channel Menu

In this menu, the following values shall be set in the appropriate fields.

1. Go to COLLECTION HARDWARE SETUP menu. 2. Go to CHANNEL sub menu. 3. Choose Hardware category in this sub menu and set the values as detailed in the

table below for each scan plan as detailed in Exhibit C, Exhibit D and Exhibit E. The fields that are not defined below are to be left unfilled or un-checked.

Parameters Values for Exhibit C

Channel 1 Channel 2 Channel 3 Channel 4 Channel 5 Channel 6

Channel mode: Phased Array

Channel mode: Phased Array

Channel mode: Phased Array

Channel mode: Phased Array

Channel mode: Phased Array

Channel mode: Phased Array

Pulse width: 100 nS

Pulse width: 100 nS

Pulse width: 100 nS

Pulse width: 100 nS

Pulse width: 100 nS

Pulse width: 100 nS

Bits per sample:

14

Bits per sample:

14

Bits per sample:

14

Bits per sample:

14

Bits per sample:

14

Bits per sample:

14 Sample rate: 25,000 MHz

Sample rate: 25,000 MHz

Sample rate: 25,000 MHz

Sample rate: 25,000 MHz

Sample rate: 25,000 MHz

Sample rate: 25,000 MHz

Averaging: Off

Averaging: Off

Averaging: Off

Averaging: Off

Averaging: Off

Averaging: Off

Amplifier Control:

[to be adjusted later]

Amplifier Control:

[to be adjusted later]

Amplifier Control:

[to be adjusted later]

Amplifier Control:

[to be adjusted later]

Amplifier Control:

[to be adjusted later]

Amplifier Control:

[to be adjusted later]

Page 6: PAUT Procedure - MRU Adsorber PCI Rev. 0 (Thickness 83-88 Mm)

ULTRASONIC PHASED ARRAY EXAMINATION PROCEDURE FOR 83 MM - 88 MM THICK DOUBLE BEVEL

WELDS IN CLAD PRESSURE VESSELS MRU ADSORBER (610-V-231) FABRICATION PROJECT

PROC. NO. : IMSN-SSB/UT/34

REV. NO. : 0

DATE : May 20, 2013

PAGE : Page 6 of 46

TCG Curve:

1 TCG Curve:

2 TCG Curve:

3 TCG Curve:

4 TCG Curve:

5 TCG Curve:

6

Parameters Values for Exhibit D

Channel 1 Channel 2 Channel 3

Channel mode: Phased Array

Channel mode: Phased Array

Channel mode: Phased Array

Pulse width: 100 nS

Pulse width: 100 nS

Pulse width: 100 nS

Bits per sample: 14

Bits per sample: 14

Bits per sample: 14

Sample rate: 25,000 MHz

Sample rate: 25,000 MHz

Sample rate: 25,000 MHz

Averaging: Off

Averaging: Off

Averaging: Off

Amplifier Control: [to be adjusted later]

Amplifier Control: [to be adjusted later]

Amplifier Control: [to be adjusted later]

TCG Curve: 1

TCG Curve: 2

TCG Curve: 3

Parameters Values for Exhibit E

Channel 1 Channel 2 Channel 3 Channel 4

Channel mode: Phased Array

Channel mode: Phased Array

Channel mode: Phased Array

Channel mode: Phased Array

Pulse width: 100 nS

Pulse width: 100 nS

Pulse width: 100 nS

Pulse width: 100 nS

Bits per sample: 14

Bits per sample: 14

Bits per sample: 14

Bits per sample: 14

Sample rate: 25,000 MHz

Sample rate: 25,000 MHz

Sample rate: 25,000 MHz

Sample rate: 25,000 MHz

Averaging: Off

Averaging: Off

Averaging: Off

Averaging: Off

Amplifier Control: [to be adjusted later]

Amplifier Control: [to be adjusted later]

Amplifier Control: [to be adjusted later]

Amplifier Control: [to be adjusted later]

TCG Curve: 1

TCG Curve: 2

TCG Curve: 3

TCG Curve: 4

4. Choose Probe category in this sub menu and set the values in the tables below for each scan plan as detailed in Exhibit C, Exhibit D and Exhibit E. The fields that are not defined below are to be left unfilled or un-checked.

Parameters Values for Exhibit C

Channel 1 Channel 2 Channel 3 Channel 4 Channel 5 Channel 6

Page 7: PAUT Procedure - MRU Adsorber PCI Rev. 0 (Thickness 83-88 Mm)

ULTRASONIC PHASED ARRAY EXAMINATION PROCEDURE FOR 83 MM - 88 MM THICK DOUBLE BEVEL

WELDS IN CLAD PRESSURE VESSELS MRU ADSORBER (610-V-231) FABRICATION PROJECT

PROC. NO. : IMSN-SSB/UT/34

REV. NO. : 0

DATE : May 20, 2013

PAGE : Page 7 of 46

Array geometry:

Linear

Array geometry:

Linear

Array geometry:

Linear

Array geometry:

Linear

Array geometry:

Linear

Array geometry:

Linear

Database: 5L32-PWZ3

Database: 5L32-PWZ3

Database: 5L32-PWZ3

Database: 5L32-PWZ3

Database: 5L32-PWZ3

Database: 5L32-PWZ3

Wave type: Shear

Wave type: Shear

Wave type: Shear

Wave type: Shear

Wave type: Shear

Wave type: Shear

Ultrasonic velocity:

3,292 m/s

Ultrasonic velocity:

3,292 m/s

Ultrasonic velocity:

3,292 m/s

Ultrasonic velocity:

3,292 m/s

Ultrasonic velocity:

3,292 m/s

Ultrasonic velocity:

3,292 m/s Probe delay:

[to be adjusted later]

Probe delay: [to be adjusted

later]

Probe delay: [to be adjusted

later]

Probe delay: [to be adjusted

later]

Probe delay: [to be adjusted

later]

Probe delay: [to be adjusted

later]

Direction/skew: 0˚

Direction/skew: 0˚

Direction/skew: 0˚

Direction/skew: 180˚

Direction/skew: 180˚

Direction/skew: 180˚

Horizontal offset:

-73 mm

[distance of the wedge’s front from the center of the

weld]

Horizontal offset:

-139 mm

[distance of the wedge’s front from the center of the

weld]

Horizontal offset:

-204 mm

[distance of the wedge’s front from the center of the

weld]

Horizontal offset: 73 mm

[distance of the

wedge’s front from the center of the

weld]

Horizontal offset:

139 mm

[distance of the wedge’s front from the center of the

weld]

Horizontal offset:

204 mm

[distance of the wedge’s front from the center of the

weld] Vertical offset:

0 mm Vertical offset:

0 mm Vertical offset:

0 mm Vertical offset:

0 mm Vertical offset:

0 mm Vertical offset:

0 mm

Apodization method:

None

Apodization method:

None

Apodization method:

None

Apodization method:

None

Apodization method:

None

Apodization method:

None

Parameters Values for Exhibit D

Channel 1 Channel 2 Channel 3

Array geometry: Linear

Array geometry: Linear

Array geometry: Linear

Database: 5L32-PWZ3

Database: 5L32-PWZ3

Database: 5L32-PWZ3

Wave type: Shear

Wave type: Shear

Wave type: Shear

Ultrasonic velocity: 3,292 m/s

Ultrasonic velocity: 3,292 m/s

Ultrasonic velocity: 3,292 m/s

Probe delay: [to be adjusted later]

Probe delay: [to be adjusted later]

Probe delay: [to be adjusted later]

Direction/skew: 0˚

Direction/skew: 0˚

Direction/skew: 0˚

Horizontal offset: -97 mm

[distance of the wedge’s

front from the center of the weld]

Horizontal offset: -56 mm

[distance of the wedge’s

front from the center of the weld]

Horizontal offset: -114 mm

[distance of the wedge’s

front from the center of the weld]

Vertical offset: 0 mm

Vertical offset: 0 mm

Vertical offset: 0 mm

Apodization method: None

Apodization method: None

Apodization method: None

Page 8: PAUT Procedure - MRU Adsorber PCI Rev. 0 (Thickness 83-88 Mm)

ULTRASONIC PHASED ARRAY EXAMINATION PROCEDURE FOR 83 MM - 88 MM THICK DOUBLE BEVEL

WELDS IN CLAD PRESSURE VESSELS MRU ADSORBER (610-V-231) FABRICATION PROJECT

PROC. NO. : IMSN-SSB/UT/34

REV. NO. : 0

DATE : May 20, 2013

PAGE : Page 8 of 46

Parameters Values for Exhibit E

Channel 1 Channel 2 Channel 3 Channel 4

Array geometry: Linear

Array geometry: Linear

Array geometry: Linear

Array geometry: Linear

Database: 5L32-PWZ3

Database: 5L32-PWZ3

Database: 5L32-PWZ3

Database: 5L32-PWZ3

Wave type: Shear

Wave type: Shear

Wave type: Shear

Wave type: Shear

Ultrasonic velocity: 3,292 m/s

Ultrasonic velocity: 3,292 m/s

Ultrasonic velocity: 3,292 m/s

Ultrasonic velocity: 3,292 m/s

Probe delay: [to be adjusted later]

Probe delay: [to be adjusted later]

Probe delay: [to be adjusted later]

Probe delay: [to be adjusted later]

Direction/skew: 0˚

Direction/skew: 0˚

Direction/skew: 0˚

Direction/skew: 0˚

Horizontal offset: -73 mm

[distance of the wedge’s

front from the center of the weld]

Horizontal offset: -139 mm

[distance of the wedge’s

front from the center of the weld]

Horizontal offset: -73 mm

[distance of the wedge’s

front from the center of the weld]

Horizontal offset: -139 mm

[distance of the wedge’s

front from the center of the weld]

Vertical offset: 0 mm

Vertical offset: 0 mm

Vertical offset: 0 mm

Vertical offset: 0 mm

Apodization method: None

Apodization method: None

Apodization method: None

Apodization method: None

5. Choose F-Law category in this sub menu and set the values in the tables below for both scan plans as detailed in Exhibit C, Exhibit D and Exhibit E. The F-Laws function sets the focal laws setting in each channel. The fields that are not defined below are to be left unfilled or un-checked.

Parameters Values for Exhibit C

Channel 1 Channel 2 Channel 3 Channel 4 Channel 5 Channel 6

Focus mode: Range

Focus mode: Range

Focus mode: Range

Focus mode: Range

Focus mode: Range

Focus mode: Range

TX C

ontr

ol

1st Active: 1

TX C

ontr

ol

1st Active: 1

TX C

ontr

ol

1st Active: 1

TX C

ontr

ol

1st Active: 1

TX C

ontr

ol

1st Active: 1

TX C

ontr

ol

1st Active: 1

Number of active:

32

Number of active:

32

Number of active:

32

Number of active:

32

Number of active:

32

Number of active:

32

Focal range: 500 mm

Focal range: 500 mm

Focal range: 500 mm

Focal range: 500 mm

Focal range: 500 mm

Focal range: 500 mm

El. 1 conn.: 1

El. 1 conn.: 1

El. 1 conn.: 1

El. 1 conn.: 33

El. 1 conn.: 33

El. 1 conn.: 33

Con

trol

1st Active: 1

Con

trol

1st Active: 1

Con

trol

1st Active: 1

Con

trol

1st Active: 1

Con

trol

1st Active: 1

Con

trol

1st Active: 1

Number of active:

32

Number of active:

32

Number of active:

32

Number of active:

32

Number of active:

32

Number of active:

32

Page 9: PAUT Procedure - MRU Adsorber PCI Rev. 0 (Thickness 83-88 Mm)

ULTRASONIC PHASED ARRAY EXAMINATION PROCEDURE FOR 83 MM - 88 MM THICK DOUBLE BEVEL

WELDS IN CLAD PRESSURE VESSELS MRU ADSORBER (610-V-231) FABRICATION PROJECT

PROC. NO. : IMSN-SSB/UT/34

REV. NO. : 0

DATE : May 20, 2013

PAGE : Page 9 of 46

RX

Focal range: 500 mm

RX

Focal range: 500 mm

RX

Focal range: 500 mm

RX

Focal range: 500 mm

RX

Focal range: 500 mm

RX

Focal range: 500 mm

El. 1 conn.: 1

El. 1 conn.: 1

El. 1 conn.: 1

El. 1 conn.: 33

El. 1 conn.: 33

El. 1 conn.: 33

Para

met

ers

1st El. at: Bottom

Para

met

ers

1st El. at: Bottom

Para

met

ers

1st El. at: Bottom

Para

met

ers

1st El. at: Bottom

Para

met

ers

1st El. at: Bottom

Para

met

ers

1st El. at: Bottom

1st El. height:

14.3 mm

1st El. height:

14.3 mm

1st El. height:

14.3 mm

1st El. height:

14.3 mm

1st El. height:

14.3 mm

1st El. height:

14.3 mm 1st El. to diffuser:

60.41 mm

1st El. to diffuser:

60.41 mm

1st El. to diffuser:

60.41 mm

1st El. to diffuser:

60.41 mm

1st El. to diffuser:

60.41 mm

1st El. to diffuser:

60.41 mm

Wed

ge

1st El. to front:

60.41 mm

Wed

ge

1st El. to front:

60.41 mm

Wed

ge

1st El. to front:

60.41 mm

Wed

ge

1st El. to front:

60.41 mm

Wed

ge

1st El. to front:

60.41 mm

Wed

ge

1st El. to front:

60.41 mm

Angle: 36.10˚

Angle: 36.10˚

Angle: 36.10˚

Angle: 36.10˚

Angle: 36.10˚

Angle: 36.10˚

U-sonic velocity:

2,330 m/s

U-sonic velocity:

2,330 m/s

U-sonic velocity:

2,330 m/s

U-sonic velocity:

2,330 m/s

U-sonic velocity:

2,330 m/s

U-sonic velocity:

2,330 m/s

Ang

le C

ontr

ol

Swept: [√]

Ang

le C

ontr

ol

Swept: [√]

Ang

le C

ontr

ol

Swept: [√]

Ang

le C

ontr

ol

Swept: [√]

Ang

le C

ontr

ol

Swept: [√]

Ang

le C

ontr

ol

Swept: [√]

Min.: 51˚

Min.: 52˚

Min.: 45˚

Min.: 51˚

Min.: 52˚

Min.: 45˚

Max.: 72˚

Max.: 69˚

Max.: 62˚

Max.: 72˚

Max.: 69˚

Max.: 62˚

Step: 1˚

Step: 0.94˚

Step: 0.68˚

Step: 1˚

Step: 0.94˚

Step: 0.68˚

Parameters Values for Exhibit D

Channel 1 Channel 2 Channel 3

Focus mode: Range

Focus mode: Range

Focus mode: Range

TX C

ontr

ol

First Active: 1

TX C

ontr

ol

First Active: 1

TX C

ontr

ol

First Active: 1

Number of active: 32

Number of active: 32

Number of active: 32

Focal range: 500 mm

Focal range: 500 mm

Focal range: 500 mm

El. 1 connection: 1

El. 1 connection: 33

El. 1 connection: 1

RX C

ontr

ol

First Active: 1

RX C

ontr

ol

First Active: 1

RX C

ontr

ol

First Active: 1

Number of active: 32

Number of active: 32

Number of active: 32

Focal range: 500 mm

Focal range: 500 mm

Focal range: 500 mm

El. 1 connection: 1

El. 1 connection: 1

El. 1 connection: 1

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ULTRASONIC PHASED ARRAY EXAMINATION PROCEDURE FOR 83 MM - 88 MM THICK DOUBLE BEVEL

WELDS IN CLAD PRESSURE VESSELS MRU ADSORBER (610-V-231) FABRICATION PROJECT

PROC. NO. : IMSN-SSB/UT/34

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Wed

ge P

aram

eter

s

1st El. at: Bottom

Wed

ge P

aram

eter

s

1st El. at: Bottom

Wed

ge P

aram

eter

s

1st El. at: Bottom

1st El. height: 14.3 mm

1st El. height: 14.3 mm

1st El. height: 14.3 mm

1st El. to diffuser: 60.41 mm

1st El. to diffuser: 60.41 mm

1st El. to diffuser: 60.41 mm

1st El. to front: 60.41 mm

1st El. to front: 60.41 mm

1st El. to front: 60.41 mm

Angle: 36.10˚

Angle: 36.10˚

Angle: 36.10˚

U-sonic velocity: 2,330 m/s

U-sonic velocity: 2,330 m/s

U-sonic velocity: 2,330 m/s

Ang

le C

ontr

ol

Swept: [√]

Ang

le C

ontr

ol

Swept: [√]

Ang

le C

ontr

ol

Swept: [√]

Min.: 46˚

Min.: 48˚

Min.: 45˚

Max.: 70˚

Max.: 71˚

Max.: 64˚

Step: 1˚

Step: 1˚

Step: 1˚

Parameters Values for Exhibit E

Channel 1 Channel 2 Channel 3 Channel 4

Focus mode: Range

Focus mode: Range

Focus mode: Range

Focus mode: Range

TX C

ontr

ol

First Active: 1

TX C

ontr

ol

First Active: 1

TX C

ontr

ol

First Active: 1

TX C

ontr

ol

First Active: 1

Number of active: 32

Number of active: 32

Number of active: 32

Number of active: 32

Focal range: 500 mm

Focal range: 500 mm

Focal range: 500 mm

Focal range: 500 mm

El. 1 connection: 1

El. 1 connection: 1

El. 1 connection: 1

El. 1 connection: 1

RX C

ontr

ol

First Active: 1

RX C

ontr

ol

First Active: 1

RX C

ontr

ol

First Active: 1

RX C

ontr

ol

First Active: 1

Number of active: 32

Number of active: 32

Number of active: 32

Number of active: 32

Focal range: 500 mm

Focal range: 500 mm

Focal range: 500 mm

Focal range: 500 mm

El. 1 connection: 1

El. 1 connection: 1

El. 1 connection: 1

El. 1 connection: 1

Para

met

ers

1st El. at: Bottom

Para

met

ers

1st El. at: Bottom

Para

met

ers

1st El. at: Bottom

Para

met

ers

1st El. at: Bottom

1st El. height: 14.3 mm

1st El. height: 14.3 mm

1st El. height: 14.3 mm

1st El. height: 14.3 mm

1st El. to diffuser: 60.41 mm

1st El. to diffuser: 60.41 mm

1st El. to diffuser: 60.41 mm

1st El. to diffuser: 60.41 mm

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ULTRASONIC PHASED ARRAY EXAMINATION PROCEDURE FOR 83 MM - 88 MM THICK DOUBLE BEVEL

WELDS IN CLAD PRESSURE VESSELS MRU ADSORBER (610-V-231) FABRICATION PROJECT

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W

edge

1st El. to front: 60.41 mm

Wed

ge

1st El. to front: 60.41 mm

Wed

ge

1st El. to front: 60.41 mm

Wed

ge

1st El. to front: 60.41 mm

Angle: 36.10˚

Angle: 36.10˚

Angle: 36.10˚

Angle: 36.10˚

U-sonic velocity: 2,330 m/s

U-sonic velocity: 2,330 m/s

U-sonic velocity: 2,330 m/s

U-sonic velocity: 2,330 m/s

Ang

le C

ontr

ol

Swept: [√]

Ang

le C

ontr

ol

Swept: [√]

Ang

le C

ontr

ol

Swept: [√]

Ang

le C

ontr

ol

Swept: [√]

Min.: 51˚

Min.: 52˚

Min.: 51˚

Min.: 52˚

Max.: 72˚

Max.: 66˚

Max.: 72˚

Max.: 66˚

Step: 1˚

Step: 1˚

Step: 1˚

Step: 1˚

6. Choose Gates category in this sub menu and set the values as detailed in the table below. The fields that are not defined below are to be left unfilled or un-checked. Only “Gate 1” is to be enabled while “Gate2” and “Gate 3” will be disabled.

Parameters Values for Exhibit C

Channel 1 Channel 2 Channel 3 Channel 4 Channel 5 Channel 6

Peak time: Gate Crossing

Peak time: Gate Crossing

Peak time: Gate Crossing

Peak time: Gate Crossing

Peak time: Gate Crossing

Peak time: Gate Crossing

A-scan mode: Always

A-scan mode: Always

A-scan mode: Always

A-scan mode: Always

A-scan mode: Always

A-scan mode: Always

Peak mode: Off

Peak mode: Off

Peak mode: Off

Peak mode: Off

Peak mode: Off

Peak mode: Off

Start: 87 mm

Start: 142 mm

Start: 236 mm

Start: 87 mm

Start: 142 mm

Start: 236 mm

Width: 82 mm

Width: 84 mm

Width: 84 mm

Width: 82 mm

Width: 84 mm

Width: 84 mm

Threshold: 16%

Threshold: 16%

Threshold: 16%

Threshold: 16%

Threshold: 16%

Threshold: 16%

Parameters Values for Exhibit D

Channel 1 Channel 2 Channel 3

Peak time: Gate Crossing

Peak time: Gate Crossing

Peak time: Gate Crossing

A-scan mode: Always

A-scan mode: Always

A-scan mode: Always

Peak mode: Off

Peak mode: Off

Peak mode: Off

Start: 113 mm

Start: 68 mm

Start: 114 mm

Width: 85 mm

Width: 106 mm

Width: 111 mm

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ULTRASONIC PHASED ARRAY EXAMINATION PROCEDURE FOR 83 MM - 88 MM THICK DOUBLE BEVEL

WELDS IN CLAD PRESSURE VESSELS MRU ADSORBER (610-V-231) FABRICATION PROJECT

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Threshold:

16% Threshold:

16% Threshold:

16%

Parameters Values for Exhibit E

Channel 1 Channel 2 Channel 3 Channel 4

Peak time: Gate Crossing

Peak time: Gate Crossing

Peak time: Gate Crossing

Peak time: Gate Crossing

A-scan mode: Always

A-scan mode: Always

A-scan mode: Always

A-scan mode: Always

Peak mode: Off

Peak mode: Off

Peak mode: Off

Peak mode: Off

Start: 87 mm

Start: 142 mm

Start: 87 mm

Start: 142 mm

Width: 95 mm

Width: 95 mm

Width: 95 mm

Width: 95 mm

Threshold: 16%

Threshold: 16%

Threshold: 16%

Threshold: 16%

7. In every Channel, choose Filters category in this sub menu and set the values as detailed in the table below. The fields that are not defined below are to be left unfilled or un-checked.

B-P

ass

Filte

rs P-center Freq.:

5 MHz

Filter: Broadband

Rec

tifie

r Mode: Full Wave

Filter: 5 MHz

5.2 Global Menu

In this menu, the following values shall be set in the appropriate fields. 1. Set “Master Clock” to 100 MHz. 2. Set “H.T. Voltage Conventional” to 50 V. 3. Set “H.T. Voltage Phased Array” to 100 V. 4. Set “P.R.F” to 5,000 Hz. 5. Set “Compression velocity” to 5,850 m/s. 6. Set “Couplant velocity” to 1,500 m/s. 7. Tick [√] “Use global material thickness”. Set the material thickness according to the

actual material thickness under examination.

6. ASSESMENT OF PHASED ARRAY INSTRUMENT

This assessment can only be done when all of the hardware setup parameters have been defined and configured as detailed in Par. 5 of this procedure. 6.1 Determination of Phased Array Element Activity

This assessment is used to determine that all elements of the phased array probe are active.

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ULTRASONIC PHASED ARRAY EXAMINATION PROCEDURE FOR 83 MM - 88 MM THICK DOUBLE BEVEL

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1. Connect one of the phased array probes into connector# 1 in TD-Handy Scan unit and

remove any delay line or refracting wedge from the probe. This will be probe #1.

2. Connect one of the phased array probes into connector# 2 in TD-Focus Scan unit and remove any delay line or refracting wedge from the probe. This will be probe #2.

3. Acoustically couple probe #1 to the 25-mm thickness of an IIW V1 block with a

uniform layer of couplant.

4. Go to COLLECTION HARDWARE SETUP menu.

5. Go to CHANNEL sub menu and select Channel Number 1.

6. Choose Probe category in this sub menu.

7. Tick [√] the box in the “Balance Elements” field to enable this pre-packaged program.

8. Click on “Balance” button to start the program.

9. Inactive elements are indicated by the obtained gain value of 100 dB, for that particular element.

10. The probe is considered acceptable for use if all of the elements give out similar dB

gain from one another. The maximum difference allowed between elements is ± 4dB. Maximum number of inactive element shall be 5 (five) elements and there shall be no more than 1 (one) adjacent element that is inactive.

11. Repeat steps (3) to (10) with probe #2.

12. Save the files created for these two probes in *.txt format.

6.2 Display Height Linearity Display height linearity checks shall be met at intervals not to exceed one year and documented in a form a shown in Exhibit A. With the phased array instrument connected to probe #1 (the probe wedge is to be connected to the probe), place probe #1 on the Non-piping Basic Calibration Block, as shown in Figure 2. Use the middle Focal Law in Channel #1 to obtain indications from both ½T and the block’s bottom corner and set them to 2:1 ratio of amplitudes between the two indications. Adjust the sensitivity (gain) so that the larger indication is set at 100% of full screen height (FSH). Without moving the search unit, adjust the amplifier control, as shown in Exhibit A, to successively set the larger indication from 100% to 10% FSH. The readings must be 50% of the larger amplitude, within 3% FSH. The setting and reading must be estimated to the nearest 1% FSH.

6.3 Amplitude Control Linearity Amplitude control linearity checks shall be met at intervals not to exceed one year and documented in a form a shown in Exhibit A. Place an angle beam search unit on the Non-piping Basic Calibration Block of any thickness, as shown in Figure 2. Use the middle Focal Law in Channel #1 to obtain the indication from the ½T side-drilled hole until it is peaked on the screen. Adjust the sensitivity (gain) as shown in Exhibit A. The echoes shall fall within the specified limits. The settings and readings shall be estimated to the nearest 1% of full screen.

7. EXAMINATION SYSTEM CALIBRATION

7.1 Probe Delay Calibration Probe delay calibration shall be done on every channel to be used for the examination. This calibration shall be done whenever replacing the couplant (bridging the elements and the wedge), at 3 (three) days interval, when changing the wedge or the probe, whichever is sooner.

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ULTRASONIC PHASED ARRAY EXAMINATION PROCEDURE FOR 83 MM - 88 MM THICK DOUBLE BEVEL

WELDS IN CLAD PRESSURE VESSELS MRU ADSORBER (610-V-231) FABRICATION PROJECT

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1. Go to COLLECTION HARDWARE SETUP menu.

2. Go to CHANNEL sub menu and select Channel Number 1.

3. Choose Probe category. Remove any Probe Delay value and set it to 0.

4. Press “Calibration Wizard” button to start the calibration process.

Choose “V1 100mm Radius” in the Probe-Delay column. Position the probe as seen in Figure 3 to obtain the maximum response from the 100 mm radius from the IIW V1 block.

5. In the Wizard will show an S-Scan view with the addition of 2 delimiters. The software excludes data outside these when searching for the largest signal for each Focal-Law (see Figure 4). They are moved by placing the mouse over the de-limiter (the mouse pointer will change to 4 arrows), pressing the mouse left button. Drag the delimiters to as close as possible to where the signals from the radius are at their maximum.

6. In the Echo Dynamic View (see Figure 4), the amplitude of the largest signal seen by each Focal-Law is displayed (green shaded area), and the relative gate time of that signal (in yellow). Adjust the gain so that a maximum of 80%~90% FSH signals is achieved. If the amplitude reaches 100% FSH for any given Focal-Law, the echo dynamic for the Focal-Law will be displayed in red. If this happens the gain must be reduced.

7. Once the pass is complete, select <Pass 1 Complete> from the menu. The pass

number in the menu item will now increment.

8. Repeat points 5 & 6 until the 4th pass is complete.

9. If the acquired data for any given pass is poor (may be due to lack of couplant), the pass may be aborted by selecting <Clear> from the menu.

10. On completion of the 4th pass the menu item <Calibrate> will become enabled.

Pressing the <Calibrate > button instructs the software to compute the Per Focal-Law Probe Delay. Once calculated these are displayed in the Echo Dynamic view (in Yellow).

Here is a typical output for per Focal-Law Probe Delay calibration for a Sectorial Scan. The time curve (yellow) should have a smooth appearance. If steps appear in this, the calibration procedure should be repeated.

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ULTRASONIC PHASED ARRAY EXAMINATION PROCEDURE FOR 83 MM - 88 MM THICK DOUBLE BEVEL

WELDS IN CLAD PRESSURE VESSELS MRU ADSORBER (610-V-231) FABRICATION PROJECT

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11. If satisfied with the calibration output select <Stop> to exit the calibration procedure, else select <Reset> to try again.

12. Verify that the sound path value of the radius is at 100 mm ±3 mm for the 1st, middle and last focal law.

13. Repeat steps (2) to (12) for the remaining channels 2, 3 and 4.

7.2 Time Corrected Gain (TCG) Calibration Time Corrected Gain (TCG) calibration shall be done on every channel to be used for the examination. This calibration shall be done at 7 (seven) days interval. Time Corrected Gain is used to equalize the response from the Side-drilled Hole (SDH) in the Basic Calibration Block located at different sound path. The TCG curve obtained is considered valid if the SDHs responses from all focal laws are set at minimum 80% FSH (allowed upper tolerance is up to 100% FSH, no lower tolerance). This provision applies to all SDHs being considered in each channel. 1. Go to COLLECTION HARDWARE SETUP menu.

2. Go to CHANNEL sub menu and select Channel #1.

3. Press “Calibration Wizard” button to start the calibration process.

4. Set the number of points you want to calibrate in the TCG curve. Enter the depth of each Side Drilled Holes (SDH), and from which leg they will be stroked from, and press OK. Choose only SDHs that are relevant to the channel being calibrated. The targets will then be sorted, shortest sound path first, longest sound path last. [Figure below is example only]

5. Move the probe over the Basic Calibration Block (BCB) so that each Focal-Law in Channel #1 acquires a reading for the 1st target. Use the delimiters to exclude any

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ULTRASONIC PHASED ARRAY EXAMINATION PROCEDURE FOR 83 MM - 88 MM THICK DOUBLE BEVEL

WELDS IN CLAD PRESSURE VESSELS MRU ADSORBER (610-V-231) FABRICATION PROJECT

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unwanted signals, and set the gain so that an 80%~90% FSH peak amplitude is achieved. The Echo Dynamic is re-set when the gain is modified, however it may be cleared at any time by selecting <Clear> from the menu.

6. When satisfied with the gain and de-limiter settings, select <Start> on the menu to enter the TCG calibration phase.

7. Move the probe over the calibration block so that a signal is acquired by each Focal-Law. During this procedure it is paramount that good coupling and a constant probe skew is maintained.

8. Once the pass is complete, select <Pass 1 Complete> from the menu. The pass number in the menu item will now increase.

9. Repeat steps 7 & 8 for pass 2.

10. When pass 2 is complete, the menu item “Point 1 Calibrate” will become enabled. On selection of this option, the average amplitude response is computed and displayed in the Echo Dynamic view (there should be very little difference between the images).

11. If satisfied with the result, select <Accept> on the menu to move to the next TCG

point, else <Reject> to do the current point again.

12. Repeat steps (7) through (10) until all TCG points have been calibrated on the Channel being considered.

13. Repeat steps (2) through (12) for Channel #2, #3 and #4.

7.3 Encoder Calibration A calibration check shall be performed at intervals not to exceed one month or prior to first use thereafter, by moving the encoder a minimum distance of 500 mm. The display distance shall be within ±5 mm of the actual distance moved.

8. DATUM OF THE WELDS AND LENGTH OF SCANNING

For every weld joint, there shall only be one datum which represents “0 mm position” of the weld from which the scanning will start. Datum shall be permanently marked on the surface of the part using low stress stamp or dot stamp at the one edge of the plate to determine the start position of scan to ensure repeatability of test result. The direction of the scan shall also be permanently marked using the letter “V” pointing to the direction of the scan. Each weld joint shall be sectioned to maximum 1,000 mm of weld length. On each scan of the weld section, a minimum overlap of 25 mm is required between adjacent scans (maximum scan length is 1,025 mm). This is to limit the file size so that it won’t be too large and becoming cumbersome to handle in the offline analysis process. The actual weld centerline shall also be marked for each weld joint. Using a white paint marker, guiding lines shall be marked on either side of the weld to ensure the PA probes travel in straight lines and at their respective distances from the weld centerline.

Even response from each Focal-Law set to 80% FSH.

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ULTRASONIC PHASED ARRAY EXAMINATION PROCEDURE FOR 83 MM - 88 MM THICK DOUBLE BEVEL

WELDS IN CLAD PRESSURE VESSELS MRU ADSORBER (610-V-231) FABRICATION PROJECT

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9. SURFACE PREPARATION

The examination shall be conducted from the base material surface that are free from dirt, spatter, and slag or other conditions that will interfere with the examination result. When necessary, mechanical dressing by grinding may be used but not to exceed limitations as defined in the referencing contract documents. On T-junctions, the reinforcement of the welds (circum and longitudinal welds) where the PA probe will travel over will be ground flushed to ensure proper continuous contact and coupling.

10. PRELIMINARY GO-NO GO SCAN AND POST EXAMINATION SCAN 10.1 Preliminary Go-No Go Scan

Prior to the commencement of any production examination scan on a particular type of weld joint (either circumferential or longitudinal weld joint), a preliminary scan shall be done on the Basic Calibration Block using the relevant setup file. The same examination system to be used on the production weld (i.e.: same scanner, sensitivity settings, carbide position, etc.) shall also be used when doing this preliminary scan. The operator must choose one of the SDH in the BCB that corresponds to the channel being used. The operator shall only be allowed to proceed in scanning the production weld only when the signals obtained from that particular SDH in the BCB is set at above 80% FSH and the depth of the SDHs are correct within ±5 mm of their actual depth in the block. Any calibration setups which give out-of-tolerance result(s) will require the operator to recalibrate the examination system. The data file of this preliminary scan is not required to be stored on file.

10.2 Post Examination Scan

After scanning for data collection on a particular type of weld joint, a post examination scan shall be done on the qualification block using the same setup file used during production scans. The same examination system that was used during production scan (i.e.: same scanner, sensitivity settings, carbide position, etc.) shall also be used when doing this post examination scan. The data collected from the production scans are considered valid only when the signals obtained from any of the SDH in the BCB is above 64% FSH and the depth of the SDHs are correct within ±5 mm of their actual depth in the block. Any UT data (scan files) which are considered invalid shall be marked void and the area covered by the voided data shall be re-examined.

11. EXAMINATION PROCEDURE

11.1 Scan Plan and Technique Details Volume of the weld to be examined, direction of scanning movement, probe separation shall follow the scan plan which is detailed in Exhibit C, Exhibit D and Exhibit E of this procedure. These scan plans are including the whole volume of the weld plus 25 mm of base material on each side of the expected fusion lines of the weld.

11.2 Straight Beam Scanning on Adjacent Base Metal After completion of the groove weld, but prior to Phased Array UT examination, a compression wave test of the parent material on both sides of the weld (minimum distance 325 mm) shall be performed. A separate procedure shall be established for this examination to locate any laminar discontinuities which could obstruct sound propagation during Phased Array UT. All interfering partial and full beam reflectors shall be noted (datum location and distance from the weld edge) and recorded on the examination record. Final disposition of this type of reflector is determined by PT. Sanggar Sarana Baja.

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ULTRASONIC PHASED ARRAY EXAMINATION PROCEDURE FOR 83 MM - 88 MM THICK DOUBLE BEVEL

WELDS IN CLAD PRESSURE VESSELS MRU ADSORBER (610-V-231) FABRICATION PROJECT

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11.3 Display Panel Layout for Data Acquisition

Prior to the commencement of data acquisition process, the TD-Superview panel layout shall be set as shown in Figure 6. Only the C-Scan is to be displayed during data acquisition.

11.4 Data Acquisition

Scanning shall use Weld Scan-XT, a manually driven type of scanner, to maintain constant pressure of the probes to the examination surface and to maintain constant probe separation. The maximum rate of scanner movement shall be maintained at 25 mm/sec. Lower scanning rate is permitted. Missing lines in the display shall not exceed 5% of the scan lines to be collected, and no adjacent lines shall be missed. When missing lines in the display occur, move the scanner back to re-capture the data in the missing lines. During scanning, a constant flow of fresh water shall be maintained to provide constant coupling between the wedge and the examination surface. Adjust screw to maintain constant fixture between the wedge cradle and the wedge. Screw-out the carbide pin inside the wedge to allow firm placement of the probes on the examination areas but with no contact between the wedges and the examination surface (to avoid wear).

11.5 Resolution for Scan Data Collection

A-scan data shall be recorded for the area of interest in an unprocessed form with no thresholding and recording at increments of 2 mm.

11.6 Saving Scan Data File

After scanning has been done, the scan file shall be identified using the following format:

[A] – [B] – [C] – [D].scn where: A PT. Sanggar Sarana Baja’s project ID

B Item Tag Number C Weld joint number D Positional location of the weld length examined E Probe Travelling Plan Sequence

Example of file name: A.12.1029-610V231-LS1A-1000 mm to 2025 mm-II.scn

12. OFFLINE DATA ANALYSIS AND SIZING OF INDICATIONS

Offline data analysis shall be done using the TD-Superview software on a separate PC/laptop. A dongle shall be available on the person responsible in doing this analysis. Panel layouts shall be set as shown in Figure 7 to include the following: A-Scan from channel #1 and #2 (when analyzing data in the 1st probe travelling plan) or

channel #3 and #4 (when analyzing data in the 2nd probe travelling plan).

S-Scan view #1 from channel #1 (when analyzing data in the 1st probe travelling plan) or channel #3 (when analyzing data in the 2nd probe travelling plan).

S-Scan view #2 from channel #2 (when analyzing data in the 1st probe travelling plan) or channel #4 (when analyzing data in the 2nd probe travelling plan).

C-Scan from channel #1 and #2 (when analyzing data in the 1st probe travelling plan) or channel #3 and #4 (when analyzing data in the 2nd probe travelling plan).

The analysis shall be conducted in the following order: 1. Set the C-Scan gate to encompass all of volume shown in S-Scan display.

2. Raise the bottom threshold to 16% of the amplitude color bar at the right most of the

screen as seen below. This is to ensure that only ultrasonic reflector above 20% of the reference level shall be visible for investigation. Note the difference in the C-Scan display.

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ULTRASONIC PHASED ARRAY EXAMINATION PROCEDURE FOR 83 MM - 88 MM THICK DOUBLE BEVEL

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3. Once all of the relevant indications have been noted and ready to be evaluated, return the amplitude color bar to its original position, begin data evaluation with no filtering and thresholding on the recorded data.

4. Define the weld’s overlay TD-Superview overlay configuration. The overlay configuration should closely match the actual weld’s bevel configuration and cross section. This will assist the examiner to determine whether an indication is from an actual discontinuity or some type of non-relevant indication.

5. In all of the S-Scan view available, right click to show the context menu and turn on the the following options: o Show C-Scan Display Gate o Show Skip o Show Overlay

6. In the C-Scan view, turn on the “Show Overlay” option in the context menu.

7. Start discontinuity characterization from the C-Scan view. Use single cursor to obtain

positional information of an indication. Once determined it relevance, use dual cursor to measure the indications length.

8. Adjust the position of the delimiters to designate portion in weld’s width and combine this with the utilization of the vertical-echo dynamic functionality on the C-Scan display. Use 6dB drop concept to measure indication length (extremities of the indications are taken from 6 dB drop from edge of the indications).

9. For height sizing of an indication, it shall be done in the S-Scan view. Technique of height sizing of an indication depends on the type (cylindrical or planar) of the indication in question. o For indications characterized as cylindrical, sizing shall be done utilizing the vertical-

echo dynamic functionality. Use the right dB drop concept* or calculation of creeping wave (propagating on the surface of the flaw); whichever is appropriate

* Note: Use 6 dB drop when 3 or more focal laws in the channel exhibit similar

amplitude. Otherwise, use 3 dB drop.

Measuring diameter of a cylindrical flaw using creeping wave

Bottom threshold to be raised 16% above 0%

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ULTRASONIC PHASED ARRAY EXAMINATION PROCEDURE FOR 83 MM - 88 MM THICK DOUBLE BEVEL

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1.39L

D where:

D Diameter of the flaw (mm) L The measured distance between the reflected signal and the creep wave signal

(mm) 1.39 Empirical constant

o For indications characterized as planar, sizing shall be done to measure the time

difference between the maximized echoes of the flaw to the tip diffracted echo of the flaw. If the tip diffracted echoes cannot be clearly resolved in any of the S-Scan views, use the right dB drop concept*.

* Note: Use 6 dB drop when 3 or more focal laws in the channel exhibit similar

amplitude. Otherwise, use 3 dB drop.

Tip diffracted Echo from Embedded Vertically Oriented Planar Flaw

Tip diffracted Echo from Open to the Surface Vertically Oriented Planar Flaw

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ULTRASONIC PHASED ARRAY EXAMINATION PROCEDURE FOR 83 MM - 88 MM THICK DOUBLE BEVEL

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13. SIZE AND CATEGORY OF FLAWS

13.1 Size of Flaw The dimensions of the flaw shall be determined by the rectangle that fully contains the area of the flaw. (a) The length of the flaw shall be the dimension of the rectangle that is parallel to the

inside pressure-retaining surface of the component.

(b) The height of the flaw shall be the dimension of the rectangle that is normal to the inside pressure-retaining surface of the component.

13.2 Category of Flaw

Flaws shall be categorized as being surface or subsurface based on their separation distance from the nearest component surface. (a) If the space is equal to or less than one-half the height of the flaw, then the flaw shall

be categorized as a surface flaw. A flaw need not be surface breaking to be categorized as a surface flaw.

(b) If the space is greater than one-half the height of the flaw, then the flaw shall be categorized as a subsurface flaw.

(c) The depth of the flaw shall be drawn normal to the inside pressure retaining surface

and shall be denoted as "a" for a surface flaw or "2a" for a subsurface flaw.

13.3 Evaluation Threshold All reflectors that produce a response greater than 20% TCG (16% FSH) shall be investigated and evaluated as per the acceptance criteria in Par. 13. Reflectors that are determined originate from the surface configurations (such as weld reinforcement or root geometry) or variations in metallurgical structure of materials (such as cladding to base metal interface) may be classified as geometric indications and need not be characterized or sized.

14. ACCEPTANCE CRITERIA Flaws shall be evaluated for acceptance using the applicable criteria of Tables 1 and with the following additional requirements. Unacceptable flaws shall be repaired and the repaired welds shall be re-evaluated for acceptance.

Table 1 – Flaw Acceptance Criteria

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ULTRASONIC PHASED ARRAY EXAMINATION PROCEDURE FOR 83 MM - 88 MM THICK DOUBLE BEVEL

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Notes: 1. For intermediate flaw aspect ratio a/l and thickness t (2½ in. [64 mm] < t < 4 in. [100

mm]), linear interpolation is permissible.

2. The parameter t is the thickness of the weld excluding any allowable reinforcement, and the parameter l is the length of the flaw. For a butt weld joining two members having different thickness at the weld, t is the thinner of these two thicknesses. If a full penetration weld includes a fillet weld, then the thickness of the throat of the fillet weld shall be included in t.

3. A subsurface indication shall be considered as a surface flaw if the separation (S in Figure 8) of the indication from the nearest surface of the component is equal to or less than half the through dimension [2d in Figure 8, sketch (b)] of the subsurface indication.

4. If the acceptance criteria in this table results in a flaw length, l , less than 6.4 mm, a value of 6.4 mm may be used.

14.1 Surface Flaws – Flaws identified as surface flaws during the UT examination may or may

not be surface connected. Therefore, unless the UT data analysis confirms that the flaw is not surface connected, it shall be considered surface connected or a flaw open to the surface.

14.2 Multiple Flaws

1) Discontinuous flaws shall be considered a singular planar flaw if the distance between adjacent flaws is equal to or less than the dimension “S” as shown in Figure 9.

2) Discontinuous flaws that are oriented primarily in parallel planes shall be considered a singular planar flaw if the distance between the adjacent planes is equal to or less than 13 mm (see Figure 9).

3) Discontinuous flaws that are coplanar and nonaligned in the through-wall thickness direction of the component shall be considered a singular planar flaw if the distance between adjacent flaws is equal to or less than “S” as shown in Figure 10.

4) Discontinuous flaws that are coplanar in the through-wall direction within two parallel

planes 13 mm apart (i.e., normal to the pressure-retaining surface of the component) are unacceptable if the additive flaw depth dimension of the flaws exceeds those shown in Figure 11.

14.3 Subsurface Flaws – the flaw length (l) shall not exceed 4t.

15. DATA PACKAGE AND REPORTING 15.1 Recording Threshold

All relevant reflectors producing UT indication above 20% TCG (16%FSH) and have length greater than 10 mm shall be recorded in the examination report.

15.2 Recording Threshold

The final data package shall be reviewed by a UT Level III individual. The data package shall include:

1. The ultrasonic data record (original scan file) 2. Data interpretations 3. Flaw evaluations/characterizations performed by another qualified Level II or III

individual.

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ULTRASONIC PHASED ARRAY EXAMINATION PROCEDURE FOR 83 MM - 88 MM THICK DOUBLE BEVEL

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The examination details shall be documented on a report form as described in Exhibit B of this procedure. The report form and the original UT data scan file shall be maintained by IMSN until complete hand-over has been completed to PT. Sanggar Sarana Baja.

Figure 1 – Non-piping Basic Calibration Block

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ULTRASONIC PHASED ARRAY EXAMINATION PROCEDURE FOR 83 MM - 88 MM THICK DOUBLE BEVEL

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Figure 2 – Linearity

Figure 3 – Probe Position for Probe Delay Calibration

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ULTRASONIC PHASED ARRAY EXAMINATION PROCEDURE FOR 83 MM - 88 MM THICK DOUBLE BEVEL

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Figure 4 –The Probe Delay Calibration Super-View window

Figure 5 – Probe Position for Time Corrected Gain Calibration

Per F-Law amplitude

Per F-Law relative time

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ULTRASONIC PHASED ARRAY EXAMINATION PROCEDURE FOR 83 MM - 88 MM THICK DOUBLE BEVEL

WELDS IN CLAD PRESSURE VESSELS MRU ADSORBER (610-V-231) FABRICATION PROJECT

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Figure 6 – Panel Layout for Data Acquisition

Figure 7 – Panel Layout for Offline Data Analysis

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ULTRASONIC PHASED ARRAY EXAMINATION PROCEDURE FOR 83 MM - 88 MM THICK DOUBLE BEVEL

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Figure 8 – Single Indications

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Figure 9 – Multiple Planar Flaws Oriented in a Plane Normal to the Pressure Retaining Surface

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ULTRASONIC PHASED ARRAY EXAMINATION PROCEDURE FOR 83 MM - 88 MM THICK DOUBLE BEVEL

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Figure 10 – Surface and Subsurface Flaw

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ULTRASONIC PHASED ARRAY EXAMINATION PROCEDURE FOR 83 MM - 88 MM THICK DOUBLE BEVEL

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Figure 11 – Non-Aligned Coplanar Flaws in a Plane Normal to the Pressure Retaining Surface

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ULTRASONIC PHASED ARRAY EXAMINATION PROCEDURE FOR 83 MM - 88 MM THICK DOUBLE BEVEL

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Exhibit A – ULTRASONIC INSTRUMENT LINEARITY LOG FORM

Linearity Verification Report Form

Instrument’ Manufacturer : AGR Technology Design Low pass filter (MHz) : 20 MHz Instrument Model & Type : TD Handy Scan High pass filter (MHz) : 0.5 MHz Instrument Serial Number : HS-0250 Digitization Frequency (MHz) : 25,000 MHz PA probe type : 5L32-PWZ3 Rectifier Filter (MHz) : 5 MHz

PA probe serial number : Rectifier Mode : Full Wave

Pulser Voltage (V) : 100 Volts Averaging : Off

Pulse width (ns) : 100 ns Couplant used : Water

Display Height Linearity Amplitude Control Linearity

Large (%) Small Allowed Range Small Actual (%) Ind. Height dB Allowed Range

100 47-53 40 +1 42-47

90 42-48 40 +2 48-52

80 40 40 40 +4 60-66

70 32-38 40 +6 77-83

60 27-33 100 –6 47-53

50 22-28 40 17-23 30 12-18 20 7-13 10 2-8

Display Height Linearity Results : Acceptable / Not Acceptable

Amplitude Control Linearity Channel Results : Acceptable / Not Acceptable

Date of linearity checks :

Linearity checks valid until :

Calibrated by :

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ULTRASONIC PHASED ARRAY EXAMINATION PROCEDURE FOR 83 MM - 88 MM THICK DOUBLE BEVEL

WELDS IN CLAD PRESSURE VESSELS MRU ADSORBER (610-V-231) FABRICATION PROJECT

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Exhibit B – PHASED ARRAY UT EXAMINATION REPORT FORM

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ULTRASONIC PHASED ARRAY EXAMINATION PROCEDURE FOR 83 MM - 88 MM THICK DOUBLE BEVEL

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ULTRASONIC PHASED ARRAY EXAMINATION PROCEDURE FOR 83 MM - 88 MM THICK DOUBLE BEVEL

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Exhibit C – TWO-SIDED SCAN PLAN FOR WELDING DETAIL NO. 1

Piece

Material Thickness HAZ Width

SA-516 Gr.70N + SS-316L 88mm 25mm

Direction of scanning 

movemen

Direction of scanning 

movemen

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ULTRASONIC PHASED ARRAY EXAMINATION PROCEDURE FOR 83 MM - 88 MM THICK DOUBLE BEVEL

WELDS IN CLAD PRESSURE VESSELS MRU ADSORBER (610-V-231) FABRICATION PROJECT

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Weld Details and Bevel Configuration

Region Angle Height Gap

Upper Fill

30˚ 42.5mm

Root 5mm

Root Fill 30˚ 45.5mm

Phased Array Probe: 1st probe travelling plan

1st probe Horizontal Offset: -73mm 2nd probe Horizontal Offset: 73mm 1st probe Vertical Scan Offset: 0mm 2nd probe Vertical Scan Offset: 0mm 1st probe Skew: 0˚ 2nd probe Skew: 180˚

Sectorial Beamset

Wave Type Element Qty First Element Min. Angle Max Angle Angle Steps

Shear 32 1 51o 72o 1o

Focusing: None Gate: ON : Start = 87mm Length = 82mm Estimated Near Field Min: 380.41mm Estimated Near Field Max: 381.47mm Estimated Beam Spread Min: 1.4˚ Estimated Beam Spread Max: 2.52˚

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ULTRASONIC PHASED ARRAY EXAMINATION PROCEDURE FOR 83 MM - 88 MM THICK DOUBLE BEVEL

WELDS IN CLAD PRESSURE VESSELS MRU ADSORBER (610-V-231) FABRICATION PROJECT

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Phased Array Probe: 2nd probe travelling plan

1st probe Horizontal Offset: -139mm 2nd probe Horizontal Offset: 139mm 1st probe Vertical Scan Offset: 0mm 2nd probe Vertical Scan Offset: 0mm 1st probe Skew: 0˚ 2nd probe Skew: 180˚

Sectorial Beamset

Wave Type Element Qty First Element Min. Angle Max Angle Angle Steps

Shear 32 1 52o 69o 0.94o

Focusing: None Gate: ON : Start = 142mm Length = 84mm Estimated Near Field Min: 380.46mm Estimated Near Field Max: 381.34mm Estimated Beam Spread Min: 1.42˚ Estimated Beam Spread Max: 2.21˚

Phased Array Probe: 3rd probe travelling plan

1st probe Horizontal Offset: -204mm 2nd probe Horizontal Offset: 204mm 1st probe Vertical Scan Offset: 0mm 2nd probe Vertical Scan Offset: 0mm 1st probe Skew: 0˚ 2nd probe Skew: 180˚

Sectorial Beamset

Wave Type Element Qty First Element Min. Angle Max Angle Angle Steps

Shear 32 1 45o 62o 0.68o

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ULTRASONIC PHASED ARRAY EXAMINATION PROCEDURE FOR 83 MM - 88 MM THICK DOUBLE BEVEL

WELDS IN CLAD PRESSURE VESSELS MRU ADSORBER (610-V-231) FABRICATION PROJECT

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Focusing: None Gate: ON : Start = 236mm Length = 84mm Estimated Near Field Min: 380.12mm Estimated Near Field Max: 380.98mm Estimated Beam Spread Min: 1.29˚ Estimated Beam Spread Max: 1.75˚

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ULTRASONIC PHASED ARRAY EXAMINATION PROCEDURE FOR 83 MM - 88 MM THICK DOUBLE BEVEL

WELDS IN CLAD PRESSURE VESSELS MRU ADSORBER (610-V-231) FABRICATION PROJECT

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Exhibit D – ONE-SIDED SCAN PLAN FOR WELDING DETAIL NO. 2

Direction of scanning 

movemen

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ULTRASONIC PHASED ARRAY EXAMINATION PROCEDURE FOR 83 MM - 88 MM THICK DOUBLE BEVEL

WELDS IN CLAD PRESSURE VESSELS MRU ADSORBER (610-V-231) FABRICATION PROJECT

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Piece

Material Thickness HAZ Width

SA-516 Gr.70N + SS-316L 88mm 25mm

Weld Details and Bevel Configuration

Region Angle Height Gap

Upper Fill

30˚ 55mm

Root 2mm 5mm

Root Fill 30˚ 31mm

Phased Array Probe: 1st probe travelling plan

1st probe Horizontal Offset: -97mm 1st probe Vertical Scan Offset: 0mm 1st probe Skew: 0˚

Sectorial Beamset

Wave Type Element Qty First Element Min. Angle Max Angle Angle Steps

Shear 32 1 46o 70o 1o

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ULTRASONIC PHASED ARRAY EXAMINATION PROCEDURE FOR 83 MM - 88 MM THICK DOUBLE BEVEL

WELDS IN CLAD PRESSURE VESSELS MRU ADSORBER (610-V-231) FABRICATION PROJECT

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Focusing: None Gate: ON : Start = 113mm Length = 85mm Estimated Near Field Min: 380.17mm Estimated Near Field Max: 381.38mm Estimated Beam Spread Min: 1.31˚ Estimated Beam Spread Max: 2.3˚

Phased Array Probe: 2nd probe travelling plan

1st probe Horizontal Offset: -56mm 1st probe Vertical Scan Offset: 0mm 1st probe Skew: 0˚

Sectorial Beamset

Wave Type Element Qty First Element Min. Angle Max Angle Angle Steps

Shear 32 1 48o 71o 1o

Focusing: None Gate: ON : Start = 68mm Length = 106mm Estimated NearField Min: 380.26mm Estimated NearField Max: 381.43mm Estimated Beam Spread Min: 1.34˚ Estimated Beam Spread Max: 2.41˚

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ULTRASONIC PHASED ARRAY EXAMINATION PROCEDURE FOR 83 MM - 88 MM THICK DOUBLE BEVEL

WELDS IN CLAD PRESSURE VESSELS MRU ADSORBER (610-V-231) FABRICATION PROJECT

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Phased Array Probe: 3rd probe travelling plan

1st probe Horizontal Offset: -114mm 1st probe Vertical Scan Offset: 0mm 1st probe Skew: 0˚

Sectorial Beamset

Wave Type Element Qty First Element Min. Angle Max Angle Angle Steps

Shear 32 1 45o 64o 1o

Focusing: None Gate: ON : Start = 114mm Length = 111mm Estimated Near Field Min: 380.12mm Estimated Near Field Max: 381.09mm Estimated Beam Spread Min: 1.29˚ Estimated Beam Spread Max: 1.85˚

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ULTRASONIC PHASED ARRAY EXAMINATION PROCEDURE FOR 83 MM - 88 MM THICK DOUBLE BEVEL

WELDS IN CLAD PRESSURE VESSELS MRU ADSORBER (610-V-231) FABRICATION PROJECT

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Exhibit E – ONE-SIDED SCAN PLAN FOR WELDING DETAIL NO. 1

Direction of scanning 

movemen

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ULTRASONIC PHASED ARRAY EXAMINATION PROCEDURE FOR 83 MM - 88 MM THICK DOUBLE BEVEL

WELDS IN CLAD PRESSURE VESSELS MRU ADSORBER (610-V-231) FABRICATION PROJECT

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Piece

Material Thickness HAZ Width

SA-516 Gr.70N + SS-316L 88mm 25mm

Weld Details and Bevel Configuration

Region Angle Height Gap

Upper Fill

30˚ 42.5mm

Root 5mm

Root Fill 30˚ 45.5mm

Phased Array Probe: 1st probe travelling plan

1st probe Horizontal Offset: -73mm 1st probe Vertical Scan Offset: 0mm 1st probe Skew: 0˚

Sectorial Beamset

Wave Type Element Qty First Element Min. Angle Max Angle Angle Steps

Shear 32 1 51o 72o 1o

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ULTRASONIC PHASED ARRAY EXAMINATION PROCEDURE FOR 83 MM - 88 MM THICK DOUBLE BEVEL

WELDS IN CLAD PRESSURE VESSELS MRU ADSORBER (610-V-231) FABRICATION PROJECT

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Focusing: None Gate: ON : Start = 87mm Length = 95mm Estimated Near Field Min: 380.41mm Estimated Near Field Max: 381.47mm Estimated Beam Spread Min: 1.4˚ Estimated Beam Spread Max: 2.52˚

Phased Array Probe: 2nd probe travelling plan

1st probe Horizontal Offset: -139mm 1st probe Vertical Scan Offset: 0mm 1st probe Skew: 0˚

Sectorial Beamset

Wave Type Element Qty First Element Min. Angle Max Angle Angle Steps

Shear 32 1 55o 66o 1o

Focusing: None Gate: ON : Start = 142mm Length = 95mm Estimated NearField Min: 380.26mm Estimated NearField Max: 381.43mm Estimated Beam Spread Min: 1.34˚ Estimated Beam Spread Max: 2.41˚

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ULTRASONIC PHASED ARRAY EXAMINATION PROCEDURE FOR 83 MM - 88 MM THICK DOUBLE BEVEL

WELDS IN CLAD PRESSURE VESSELS MRU ADSORBER (610-V-231) FABRICATION PROJECT

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Phased Array Probe: 3rd probe travelling plan

1st probe Horizontal Offset: -73mm 1st probe Vertical Scan Offset: 0mm 1st probe Skew: 0˚

Sectorial Beamset

Wave Type Element Qty First Element Min. Angle Max Angle Angle Steps

Shear 32 1 51o 72o 1o

Focusing: None Gate: ON : Start = 87mm Length = 95mm Estimated NearField Min: 380.41mm Estimated NearField Max: 381.47mm Estimated Beam Spread Min: 1.4˚ Estimated Beam Spread Max: 2.52˚

Phased Array Probe: 4th probe travelling plan

1st probe Horizontal Offset: -73mm 1st probe Vertical Scan Offset: 0mm 1st probe Skew: 0˚

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ULTRASONIC PHASED ARRAY EXAMINATION PROCEDURE FOR 83 MM - 88 MM THICK DOUBLE BEVEL

WELDS IN CLAD PRESSURE VESSELS MRU ADSORBER (610-V-231) FABRICATION PROJECT

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Sectorial Beamset

Wave Type Element Qty First Element Min. Angle Max Angle Angle Steps

Shear 32 1 52o 66o 1o

Focusing: None Gate: ON : Start = 142mm Length = 95mm Estimated NearField Min: 380.46mm Estimated NearField Max: 381.19mm Estimated Beam Spread Min: 1.42˚ Estimated Beam Spread Max: 1.98˚