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Welding Procedure Specification no. Revision No. 00 Date:

Supporting PQR No.(s) Date:

FABCON DESIGN & ENGINEERING (Pvt) LTD.

Welding Process (es): Type (s) * Manual

CODE: ASME IX* (Automatic, Manual, Machine or Semi-Auto)

JOINTS (QW-402)

Joint Design

Backing (Yes)

Backing Material (Type)

Root Spacing :

Rtainers (Yes / No)

(Refer to both backing and retainers)

Bevel Preparation:- Flame cut, Machining / Grinding

BASE METALS (QW-403)

P.No. to P.No. 5A

S.No. Group No. to S.No. Group No.

OR

Specification type and grade

to specification type and grade

OR

Chem. Analysis and Mech. Prop. -

to Chem. Analysis and Mech. Prop. N.A

Thickness Range :

Base Metal : Groove Fillet :

Pipe Dia Range: Groove Fillet :

Other

FILLER METALS (QW-404)

Spec. No. (SFA)

AWS No. (Class)

F. No.

A.No.

Size of Electrode/Filler Wire

Filler Metal Product Type

Deposited Weld Metal:

Thickness Range :

Groove

Fillet

Flux

Electrode-Flux (Class)

Flux Trade Name

Consumable Insert

Brand

* * Trade Name : Bohler, Metrode, ESAB, Kobe Steel or Equivalent.BOC / LINCOLN BOC / LINCOLN

NA 8

NA NA

None None

NA NA

2.4 mm 2.5, 3.25, 4.00 mm

Lincoln Lincoln

10 mm (Max) 15 mm (Max)

Upto 10 mm Upto 25 mm

All All

ER 90S-B3 E 9018 B3

6 4

3 3

All All

Root Filling / Capping

5.28 5.5

Group No. 1

SA 335 Gr-P22

SA 335 Gr-P22

5 ~ 50 mm All

2 ~ 4 mm

N/A

5A Group No. 1

Manufacturer:

GTAW+SMAW

As per Drawing

SMAW-With only

Base Metal : Weld Metal

GTAW:With Or Without

FAB-WPS-002 3/Sep/12

FAB-PQR-002 3/Sep/12

WELDING PROCEDURE SPECIFICATION

Doc No: QA/QC-FRM-002

Rev: 00

Date: Dec 04, 2009

Page: 1 of 2

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POSITIONS (QW-405) POST WELD HEAT TREATMENT (QW-407)

Position(s) of Groove Temperature Range

Welding Progression : Downhill SoakingTime

Rate of Heating

Position(s) of Fillet Rate of Cooling

PREHEAT (QW-406) GAS (QW-408)

Preheat Temp Min.

Interpass Temp Max. Gas(es) Mixture % Flow rate(l/min)

Preheat Maintenance Shielding Argon

Others : Trailing

Backing Argon

ELECTRICAL CHARACTERISTICS (QW-409)

Current AC or DC DC Polarity

Amps (Range) Volts (Range)

(Amps and volts range should be recorded for each electrode size,

position, and thickness, etc. This information may be listed in a tabular

form similar to that shown below.)

Pulsing

Tungsten electrode Size and Type

TECHNIQUE (QW-410)

String or Weave bead

Orifice or Gas Cup Size

Initial and Interpass Cleaning (Brushing, Grinding etc.)

Method of Back Gouging

Oscillation

Multiple or Single Pass (per side)

Multiple or Single Electrodes

Travel Speed (Range)

Peening

Other

NAME. : NAME. : NAME. :

SIGN : SIGN : SIGN :

DATE : DATE : DATE :9/3/2012

PREPARED BY APPROVED BY REVIEWED BY

Junaid Arif MUHAMMAD fahim sadiq

120-180 20-30

4 CAP SMAW E 7018 3.25 mm DCEN 90-160 20-30

3 FILL SMAW E 9018 B3 4.0 mm DCEN

DCEN 85-100 13-15

2 HOT GTAW ER 90S-B3 2.4 mm DCEN 80-150 13-15

1 ROOT GTAW ER 90S-B3 2.4 mm

NA

Back welding may be done after grinding of sound metal

Sr. No.Weld

Layer (s)Process

Filler Metal Current Volt

RangeClass Dia. Type Amp. Range

4 ~ 5 CM/Min For GTAW , 6 ~ 7 CM/Min FOR SMAW

NO

2 , 2.4 mm, Tungsten Electrode 2% Thoriated

(Pure Tungsten, E WTh2)

Root: (String), Filling / Capping:Both (Weaving 4 times of Electrode dia max.)

6~12 mm

Wire brushing, Grinding / Chipping

BY Air arc Gouging,Grinding etc.

N.A

Multiple

Single

See Table below See Table below

200oC Composition

350oC

250oC ~ 350

oC 99.99% 6 ~ 15

Post Heating For 30Min @400oc None

99.99% 6 ~ 15

GTAW : EN / SMAW : EP

WELDING PROCEDURE SPECIFICATION

Doc No: QA/QC-FRM-002

Rev: 00

Date: Dec 04, 2009

Page: 1 of 2

Rev: 00 WPS No: FAB-WPS-001

All 200oC/Hour Upto 250oC

All 700~745oC

Uphill 2 Hours Min (1 hour/25mm THK)

200oC/Hour