CONTENTS

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Welding Inspection Handbook

Contents 1

Section

Subject

1

SOCKET WELDS

2

MEASUREMENT OF FILLET WELDS

3

USE OF INSPECTION GAGES

4

GROOVE WELDS, AWS D1.1 (PIPE AND PLATE)

5

WELDING SYMBOLS (AWS A2.4)

6

VISUAL AND NDE ACCEPTANCE CRITERIA (AWS D1.1)

7

VISUAL AND NDE ACCEPTANCE CRITERIA (ASME/ANSI)

8

CODE REQUIRED NDE

9

DEFECTS

10

REPAIR OF WELD DEFECTS

11

BASE METAL REPAIR BY WELDING

12

WELDING PROCESSES

13

PREHEAT/INTERPASS TEMPERATURES

14

POSTWELD HEAT TREATMENT (PWHT)

15

PREQUALIFIED WELD JOINTS (AWS D1.1)

16

SKEWED T-JOINTS

17

PROCEDURE/WELDER QUALIFICATION (AWS D1.1)

18

PROCEDURE/WELDER QUALIFICATION (ASME SECTION IX)

19

CHARTS

20

TERMS AND DEFINITION

Section 1

Socket Welds

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1-0

Page

1.1

ASME B31.1.............................................................................................

1-1

1.1.1

Fittings.......................................................................................................

1-1

1.1.2

Flanges.......................................................................................................

1-2

1.2

ASME B31.3.............................................................................................

1-2

1.3

ASME SECTION III.................................................................................

1-3

1.3.1

Welding Requirements...............................................................................

1-3

1.4

AWS D1.1.................................................................................................

1-3

1.4.1

No Requirements in AWS D1.1..................................................................

1-

Section 1

Socket Welds

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1-1

1.1

ASME B31.1

In the assembly of the joint before welding, the pipe or tube shall be inserted into the socket to themaximum depth and then

withdrawn approximately 1/16 inch from contact between the end of thepipe and the shoulder of the socket [See Figs 127.4.4

(B) and (C)].In sleeve type joints withoutinternal shoulder, there shall be a distance of approximately 1/16 inch between the

butting ends ofthe pipe or tube.

The fit between the socket and the pipe shall conform to applicable standards for socket weld

fittings and in no case shall the inside diameter of the socket or sleeve exceed the outside diameter

of the pipe or tube by more than 0.080 in. [127.3 (E)]

1.1.1 Fittings

For socket welded fittin

gs, the minimum welding dimensions are shown below.

Figure 127.4.4 (C)Minimum Welding Dimensions Required for

Socket Welding Components Other Then Flange

1.1.2 Flanges

Typical welding details for slip-on and socket-welding flanges are shown belowNotes:

(1)Refer to Para. 122.1.1 (F) for limitations of use.(2)Refer to Para. 122.1.1 (H) for limitations of use.(3)Refer to Para.

104.5.1 for limitations of use.

Figure 127.4.4 (B)Welding Details for Slip-On and Socket-Welding Flanges;

Some Acceptable Types of Flange Attachment Welds

1.2

ASME B31.3

Typical weld details for slip-on and socket weld flanges are shown in Figure 328.5.2B; minimum

welding dimensions for other socket welding components are shown in Fig. 328.5.2C.

(328.5.2(a)

If slip-on flanges are single welded, the weld shall be at the hub.(328.5.2(b)

Welds

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1-3

Figure 328.5.2CMinimum Welding Dimensions for Socket Welding Components

Other Than Flanges

1.3

ASME SECTION III

1.3.1 Welding Requirements

Illustrations concerning socket welds for ASME/ANSI-B31.1 and ASME Section III are the

same.Also, the method used for calculation for determining socket weld size is the same, except

that for flange-to-pipe socket weld requirements, the following apply.(NX-4427)

(Figure NX-4427-1)

1.4

AWS D.1.1

1.4.1No Requirements in AWS D1.

ection 2Measurement of Fillet Welds\\houw33883\sstaffor$\temporary\welding inspection\chapter02.docWelding Inspection Handbook2-0Page2.1AWS D1.1.................................................................................................2-12.1.1Effective Length.........................................................................................2-12.1.2Effective Throat.........................................................................................2-12.1.3Theoretical Throat.....................................................................................2-22.1.4Minimum Size............................................................................................2-32.1.5Maximum Size Along Edges......................................................................2-32.1.6Minimum Length........................................................................................2-32.1.7Gaps Between Members.............................................................................2-42.1.8Faying Surfaces..........................................................................................2-42.1.9Fillet Weld Profiles (AWS 3.6)...................................................................2-52.1.10Gaps for Tubular Structures.......................................................................2-62.1.11Undersized Fillet Welds (Buildings)............................................................2-62.1.12Stud Welding (Manual) Fillet Weld Size.....................................................2-62.1.13Skewed T-Joints........................................................................................2-72.2ASME/ANSI B31.1...................................................................................2-72.2.1Fillet Welds................................................................................................2-72.2.2Size of Fillet Welds....................................................................................2-72.3ASME SECTION III.................................................................................2-82.3.1Fillet Weld Size..........................................................................................2-82.3.2Attachments to Piping after Hydro.............................................................2-92.4ASME/ANSI B31.3...................................................................................2-92.4.1Fillet Welds................................................................................................

2-92.4.2Welded Branch Connections....................................................................... 2-112.4.3Reinforcing Pad or Saddle.......................................................................... 2-112.4.4Nomenclature and Symbols........................................................................ 2-12

Section 2Measurement of Fillet Welds\\houw33883\sstaffor$\temporary\welding inspection\chapter02.docWelding Inspection Handbook2-12.1AWS D1.12.1.1 Effective LengthThe effective length of a fillet weld is the overall length of the full-size fillet, including end returns.No reduction of weld length is necessary for starts or craters, provided the weld is full sizethroughout its length, including craters.(AWS-2.3.2.1, 8.15.1.3)2.1.2 Effective ThroatThe effective throat is the shortest distance from the root of the joint to its face.(2.3.2.4)For the purpose of measuring fillet welds, thetheoretical throat should be used.