AS 2885.2-1995

1 - AS 2885.2-1995 PIPELINES - GAS AND LIQUID PETROLEUM - WELDING
4 - PREFACE
6 - CONTENTS
8 - 1 SCOPE AND GENERAL
8 - 1.1 Scope
8 - 1.2 General
8 - 1.3 Application
8 - 1.4 Referenced documents
8 - 1.5 Definitions
12 - 1.6 Notation
12 - 1.7 Rounding of numbers
12 - 2 MATERIALS
12 - 2.1 General
12 - 2.2 Weldability
12 - 2.3 Consumables
14 - 3 PREHEAT AND POST-WELD HEAT TREATMENT
14 - 3.1 General
14 - 3.2 Hydrogen cracking
14 - 3.3 Determination of preheat and interpass temperatures
15 - 3.4 Post-weld heat treatment
15 - 4 WELDING POSITIONS
15 - 4.1 Designation
15 - 4.2 Limits of qualified positions
19 - 5 QUALIFICATION OF A WELDING PROCEDURE
19 - 5.1 Purpose of qualifying a welding procedure
19 - 5.2 Methods of qualification
19 - 5.3 Welding procedure specification
19 - 5.4 Changes in a welding procedure
20 - 5.5 Test piece
20 - 5.6 Test piece material
20 - 5.7 Assembly of test pieces
20 - 5.8 Test conditions
20 - 5.9 Supervision of test weld
20 - 5.10 Identification of the test weld
25 - 6 ASSESSMENT OF A TEST WELD TO QUALIFY A WELDING PROCEDURE
25 - 6.1 Method of assessment
25 - 6.2 Visual examination
25 - 6.3 Non-destructive examination
25 - 6.4 Destructive tests
28 - 6.5 Repeated tests
29 - 6.6 Portability of a qualified welding procedure
29 - 6.7 Period of validity
29 - 6.8 Disqualification of a qualified welding procedure
32 - 7 QUALIFICATION OF A WELDER
32 - 7.1 Purpose of qualifying a welder
32 - 7.2 Categories and scope of welder qualification
32 - 7.3 Methods of qualification
32 - 7.4 Qualification by testing
32 - 7.5 Essential variables for a welder
33 - 7.6 Test piece
34 - 7.7 Assembly of test pieces
34 - 7.8 Automatic welding equipment
34 - 7.9 Categories of test welds
34 - 7.10 Making a test weld
34 - 7.11 Supervision of a test weld
35 - 7.12 Identification of a test weld
35 - 8 ASSESSMENT OF TEST WELDS FOR WELDER QUALIFICATION
35 - 8.1 Method of assessment
35 - 8.2 Visual examination
35 - 8.3 Non-destructive examination
35 - 8.4 Repeated test
35 - 8.5 Record of results
35 - 8.6 Classification of categories of welds
35 - 8.7 Portability of a welder's qualification
36 - 9 WELDER QUALIFICATION AND DISQUALIFICATION
36 - 9.1 Reciprocity of a welder’s qualification
36 - 9.2 Period of validity
36 - 9.3 Qualification record
36 - 9.4 Disqualification of a welder's qualification
36 - 10 DESIGN OF A WELDED JOINT
36 - 10.1 General
36 - 10.2 Butt welds between components of equal nominal wall thickness
36 - 10.3 Butt welds between components of unequal nominal wall thickness
36 - 10.4 Reinforcement of a butt weld
36 - 10.5 Fillet weld
37 - 10.6 Dimensions of a fillet-welded repair sleeve
37 - 10.7 Socket weld
37 - 10.8 Seal weld
37 - 10.9 Reinforcement of a welded branch connection
37 - 10.10 Reinforcement of multiple openings
37 - 10.11 Forged branch fitting
37 - 10.12 Fabricated elbow or bend
37 - 10.13 Effect of fittings upon pig passage
37 - 10.14 Offset of longitudinal welds
37 - 10.15 Distance between welds
42 - 11 PRODUCTION WELDS
42 - 11.1 Welding process
42 - 11.2 Welding equipment
42 - 11.3 Welder and welding procedure
42 - 11.4 Supervision of welding
42 - 11.5 Safety in welding
42 - 11.6 Storage and handling of electrodes, filler rods and fluxes
42 - 11.7 Welding in adverse climatic conditions
42 - 11.8 Preparation for welding
42 - 11.9 Method of making the weld preparation
42 - 11.10 Accuracy of alignment
42 - 11.11 Line-up clamp
42 - 11.12 Tack welds
42 - 11.13 Working clearance
43 - 11.14 Placement of weld passes
43 - 11.15 Arc strike and arc burn
43 - 11.16 Cleaning
43 - 11.17 Peening
43 - 11.18 Insert patching
43 - 11.19 Preheat and interpass temperature
43 - 11.20 Post-weld heat treatment
43 - 11.21 Identification of a production weld
43 - 12 WELDING ON A PIPELINE AFTER COMMISSIONING OR AFTER HYDROSTATIC TEST
43 - 12.1 General
43 - 12.2 Safety
44 - 12.3 Hot repair of a leaking gas-filled pipeline
44 - 12.4 Where gas is not escaping
44 - 12.5 Pipeline containing liquid petroleum or HVPL
45 - 12.6 Qualification of welder(s)
45 - 12.7 Qualification of supervisors and inspectors
45 - 12.8 Fit-up before welding and cutting
45 - 12.9 Examination and testing
45 - 12.10 Criteria of acceptance
45 - 13 WELDING ONTO AN IN-SERVICE PIPELINE
45 - 13.1 General-Pipeline containing flammable or pressurized fluid
45 - 13.2 Laminations and inclusions
45 - 13.3 Lining
45 - 13.4 Safety
45 - 13.5 Inspection before welding
46 - 13.6 Ultrasonic examination before welding
46 - 13.7 Welding consumables
46 - 13.8 Heat input
46 - 13.9 Qualification of welding procedures
46 - 13.10 Welding sequence
46 - 13.11 Qualification of welder(s)
46 - 13.12 Qualification of supervisors and inspectors
46 - 13.13 Fit-up before welding
46 - 13.14 Examination and testing
47 - 13.15 Criteria of acceptance
47 - 14 ASSESSMENT OF PRODUCTION WELDS AND REPAIR WELDS
47 - 14.1 General
47 - 14.2 Inspectors
47 - 14.3 Methods of examination
47 - 15 VISUAL EXAMINATION
47 - 15.1 Purpose
47 - 15.2 Method of examination
47 - 15.3 Extent of visual examination
47 - 15.4 Criteria of acceptance
48 - 15.5 Undercut depth measurement
48 - 16 NON-DESTRUCTIVE EXAMINATION
48 - 16.1 Purpose
48 - 16.2 Qualification of organizations undertaking non-destructive examination
48 - 16.3 Qualifications of personnel
48 - 16.4 Methods
48 - 16.5 Amount of non-destructive examination
51 - 16.6 Exemption from radiographic or ultrasonic examination
51 - 17 RADIOGRAPHIC EXAMINATION
51 - 17.1 General
51 - 17.2 Safety and protection from ionizing radiation
51 - 17.3 Qualification of personnel
51 - 17.4 Density
51 - 17.5 Image quality indicator sensitivity
51 - 17.6 Undercut depth measurement
53 - 17.7 Interpretation and assessment of radiographs
53 - 17.8 Criteria of acceptance
53 - 17.9 Report of radiographic examination
53 - 17.10 Retention of radiographs
53 - 18 QUALIFYING A RADIOGRAPHIC PROCEDURE
53 - 18.1 Purpose
54 - 18.2 Radiographic procedure specification
54 - 18.3 Method of qualifying the radiographic procedure
55 - 18.4 Test conditions
55 - 18.5 Criteria of acceptance
55 - 18.6 Record of approval
55 - 18.7 Portability of a qualified radiographic procedure
55 - 18.8 Period of validity
55 - 19 ULTRASONIC EXAMINATION
55 - 19.1 General
55 - 19.2 Purpose
55 - 19.3 Method
56 - 19.4 Surface preparation
56 - 19.5 Sensitivity
56 - 19.6 Assessment
56 - 19.7 Criteria of acceptance
56 - 19.8 Report
56 - 19.9 Qualification of personnel
56 - 19.10 Procedure
56 - 20 MAGNETIC PARTICLE TESTING
56 - 20.1 Purpose
56 - 20.2 Method
56 - 20.3 Qualification of personnel
56 - 20.4 Criteria of acceptance
57 - 21 DYE-PENETRANT TESTING
57 - 21.1 Purpose
57 - 21.2 Method
57 - 21.3 Qualification of personnel
57 - 21.4 Criteria of acceptance
57 - 22 CRITERIA OF A CCEPTANCE FOR GIRTH WELD DISCONTINUITIES
57 - 22.1 General
59 - 22.2 Tier 1 Criteria-Workmanship standard
66 - 22.3 Tier 2 Criteria-Generalized fitness-for-purpose standard
67 - 22.4 Tier 3 Criteria-Engineering critical assessment
67 - 23 REPAIR OF AN UNACCEPTABLE WELD
67 - 23.1 General
67 - 23.2 Repair
67 - 23.3 Inspection
67 - 23.4 Criteria of acceptance
67 - 24 REMOVAL OF AN ARC BURN
67 - 24.1 General
67 - 24.2 Repair by grinding
67 - 24.3 Method of inspection
67 - 24.4 Criteria of acceptance
67 - 24.5 Cleaning after testing
69 - 25 CUTTING OUT AN UNACCEPTABLE WELD OR AN ARC BURN
69 - 26 RECORDS
72 - APPENDIX A - LIST OF REFERENCED DOCUMENTS
74 - APPENDIX B - WELD PROCEDURE DETAIL FORM
75 - APPENDIX C - TEST WELD RECORD FORM
76 - INDEX

Specifies materials, welding consumables, welding processes, weld preparations, qualifications of welding procedures and personnel, and fabrication and inspection requirements for the welding of pipelines in construction and maintenance operations. It applies specifically to the welding of pipelines complying with AS 2885.

This Standard specifies materials, welding consumables, welding processes, weld preparations, qualifications of welding procedures and personnel, and fabrication and inspection requirements for the welding of pipelines in construction and in maintenance operations.The Standard applies specifically to the welding of pipelines complying with AS 2885.This Clause is applicable to the welding of joints in or on pipes or other pressure-retaining components and connections to apparatus or equipment used in mainline or station pipework whether welded in situ or in prefabricated assemblies.Where station pipework is designed in accordance with another Standard, the welding shall be as specified in that Standard.It is not intended that this Standard be applied to the following:(a) Longitudinal welds or spiral welds made during the manufacture of a pipe.(b) Welds made by the manufacturer during fabrication of a component (see Clause 1.5.5 for the definition of a component) other than the pipe, provided that such welds are in accordance with an approved Standard.(c) Underwater welding.(d) Hyperbaric welding.Also, it is not intended that this Standard be applied retrospectively to existing installations. It is intended that welding procedures complying with and welders who are qualified in accordance with the appropriate previous editions of this Standard may continue to be used for the maintenance of existing installations. New welding procedures and new welding qualifications should be qualified in accordance with this Standard.

First published in part as part of AS CB28-1972.
Revised and redesignated as AS 1697-1975.
AS 1958 first published 1976.
AS 2018 first published 1977.
Second edition of AS 1697-1979.
Third edition 1981.
Second edition of AS 1958-1981.
Second edition of AS 2018-1981.
AS 1958-1981 and parts of AS 2018-1981 and of AS 1697-1981 revised, amalgmated and redesignated AS 2885-1987.
Parts of AS 1697-1981, AS 2018-1981 and AS 2885-1987 revised and redesignated in part as AS 2885.2-1995.