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AWS D10.11 : 1987(R1992)

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

RECOMMENDED PRACTICES FOR ROOT PASS WELDING OF PIPE WITHOUT BACKING
Superseded date

23-07-2013

Published date

12-01-2013

Personnel
Foreword
Introduction
1 Cleanliness
2 Preparations for purging
2.1 Purging gases
2.2 Purge gas containment
3 Purging prior to welding
4 Purging during welding
5 Tack welding
6 Welding using GTAW without consumable inserts
6.1 Joint design
6.2 Root opening - open root grooves
6.3 Purge containment
6.4 Tungsten electrode type and configuration
6.5 Arc initiation
6.6 Welding technique - open root groove
6.7 Welding technique - groove with zero root opening
6.8 Welding pipe in the horizontal fixed (5G) position
6.9 Stop and start areas
7 Welding using GTAW with consumable inserts
7.1 Welding techniques for consumable inserts
7.2 Pipe axis horizontal
8 Welding with SMAW and GMAW
8.1 Shielded metal arc welding (SMAW)
8.2 Gas metal arc welding (GMAW)
9 Intermediate weld layers
10 Welding of aluminum alloys
11 Welding equipment
11.1 GTAW torches
11.2 Gas nozzles
11.3 Gas lenses
11.4 Power supplies
11.5 Machine and automatic welding equipment
12 Safety and health
12.1 Fumes and gases
12.2 Radiation
12.3 Electric shock
12.4 Fire prevention
12.5 Explosion
12.6 Burns
12.7 Further information
Appendices
A Safety and health
B Document list
Figures
1 Purging fixtures
2 Preweld purge evacuation of air
3 Typical open root joint design
4 Open root welding angular relations - pipe, torch,
      and filler metal
5 Groove design and tolerances for use with
      consumable inserts
6 Assembly tolerances for welding pipe - using five
      (5) classes of consumable inserts
7 Steps for root pass welding with class 1, 2, 3,
      and 5 consumable inserts
8 Steps for root pass welding with class 4
      consumable inserts
9 Eccentric positioning of class 3 and 5 consumable
      inserts in 5G position to prevent sag
10 Joint design for aluminium pipe

Details the above where the pipe system designer has determined that the use of backing rings is unacceptable and that complete joint penetration and a continuous root surface is needed.

DocumentType
Standard
PublisherName
American Welding Society
Status
Superseded
SupersededBy

AWS D10.12M/D10.12:2000 GUIDE FOR WELDING MILD STEEL PIPE
AWS C5.10/C5.10M : 2003 RECOMMENDED PRACTICES FOR SHIELDING GASES FOR WELDING AND CUTTING
AWS D10.6 : 1991 GAS TUNGSTEN ARC WELDING OF TITANIUM PIPING AND TUBING, RECOMMENDED PRACTICES FOR
NASA SPEC 5004A : 2003 WELDING OF AEROSPACE GROUND SUPPORT EQUIPMENT AND RELATED NONCONVENTIONAL FACILITIES
AWS EG4.0 : 1996 GUIDE FOR THE TRAINING AND QUALIFICATION OF WELDING PERSONNEL: LEVEL 3, EXPERT WELDER
AWS C5.5/C5.5M : 2003 RECOMMENDED PRACTICES FOR GAS TUNGSTEN ARC WELDING
AWS C5.10 : 1994 RECOMMENDED PRACTICES FOR SHIELDING GASES FOR WELDING AND PLASMA ARC CUTTING
AWS B1.11 : 2000 GUIDE FOR THE VISUAL EXAMINATION OF WELDS

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