List of welding codes


This page lists published welding codes, procedures, and specifications.

American Society of Mechanical Engineers (ASME) Codes

The American Society of Mechanical Engineers Boiler and Pressure Vessel Code covers all aspects of design and manufacture of boilers and pressure vessels. All sections contain welding specifications, however most relevant information is contained in the following:
CodeDescription
ASME BPVC Section IRules for Construction of Power Boilers
ASME BPVC Section IIPart C: Specifications for Welding Rods, Electrodes and Filler Metals.
ASME BPVC Section IIIRules for Constructions of Nuclear Facility Components-Subsection NCA-General Requirements for Division 1 and Division 2
ASME BPVC Section IVRules for Construction of Heating Boilers
ASME BPVC Section VNondestructive Examination
ASME BPVC Section VIIIRules for Construction of Pressure Vessels Division 1 and Division 2
ASME BPVC Section IXWelding and Brazing Qualifications
ASME B16.25Buttwelding ends
ASME B31.1Power Piping
ASME B31.3Process Piping
ASME B31.9Building Services Piping

American Welding Society (AWS) Standards

The American Welding Society publishes over 240 AWS-developed codes, recommended practices and guides which are written in accordance with American National Standards Institute practices. The following is a partial list of the more common publications:
Standard NumberTitle
AWS A2.4Standard symbols for welding, brazing, and non-destructive examination
AWS A3.0Standard welding terms and definitions
AWS A5.1Specification for carbon steel electrodes for shielded metal arc welding
AWS A5.18Specification for carbon steel electrodes and rods for gas shielded arc welding
AWS B1.10Guide for the nondestructive examination of welds
AWS B2.1Specification for Welding Procedure and Performance Qualification
AWS D1.1Structural welding
AWS D1.2Structural welding
AWS D1.3Structural welding
AWS D1.4Structural welding
AWS D1.5Bridge welding
AWS D1.6Structural welding
AWS D1.7Structural welding
AWS D1.8Structural welding seismic supplement
AWS D1.9Structural welding
AWS D3.6RUnderwater welding
AWS D8.1Automotive spot welding
AWS D8.6Automotive spot welding electrodes supplement
AWS D8.7Automotive spot welding recommendations supplement
AWS D8.8Automotive arc welding
AWS D8.9Automotive spot weld testing
AWS D8.14Automotive arc welding
AWS D9.1Sheet metal welding
AWS D10.10Heating practices for pipe and tube
AWS D10.11Root pass welding for pipe
AWS D10.12Pipe welding
AWS D10.13Tube brazing
AWS D10.18Pipe welding
AWS D11.2Welding
AWS D14.1Industrial mill crane welding
AWS D14.3Earthmoving & agricultural equipment welding
AWS D14.4Machinery joint welding
AWS D14.5Press welding
AWS D14.6Rotating Elements of Equipment
AWS D14.9Specification for the Welding of Hydraulic Cylinders
AWS D15.1Railroad welding
AWS D15.2Railroad welding practice supplement
AWS D16.1Robotic arc welding safety
AWS D16.2Robotic arc welding system installation
AWS D16.3Robotic arc welding risk assessment
AWS D16.4Robotic arc welder operator qualification
AWS D17.1Aerospace fusion welding
AWS D17.2Aerospace resistance welding
AWS D17.3Aerospace friction stir welding
AWS D18.1Hygienic tube welding
AWS D18.2Stainless steel tube discoloration guide
AWS D18.3Hygienic equipment welding

American Petroleum Institute (API) Standards

The American Petroleum Institute oldest and most successful programs is in the development of API standards which started with its first standard in 1924. API maintains over 500 standards covering the oil and gas field. The following is a partial list specific to welding:
Standard NumberDescription
API RP 577Welding Inspection and Metallurgy
API RP 582Welding Guidelines for the Chemical, Oil, and Gas Industries
API 1104Welding of pipelines and related facilities
API 1169Basic Inspection Requirements for New Pipeline Construction

Australian / New Zealand (AS/NZS) Standards

is the body responsible for the development, maintenance and publication of Australian Standards. The following is a partial list specific to welding:
Standard NumberDescription
AS/NZS 1554.1Structural steel welding - Welding of steel structures
AS/NZS 1554.2Structural steel welding - Stud welding
AS/NZS 1554.3Structural steel welding - Welding of reinforcing steel
AS/NZS 1554.4Structural steel welding - Welding of high strength quenched and tempered steels
AS/NZS 1554.5Structural steel welding - Welding of steel structures subject to high levels of fatigue loading
AS/NZS 1554.6Structural steel welding - Welding stainless steels for structural purposes
AS/NZS 1554.7Structural steel welding - Welding of sheet steel structures
AS/NZS 3992Pressure equipment - Welding and brazing qualification
AS/NZS 4855Welding consumables - Covered electrodes for manual metal arc welding
AS 4041Pressure Piping

Canadian Standards Association (CSA) Standards

The Canadian Standards Association is responsible for the development, maintenance and publication of CSA standards. The following is a partial list specific to welding:
Standard NumberDescription
CAN/CSA-G401-14Corrugated steel pipe products
CAN/CSA-ISO 14341:11 Welding consumables - Wire electrodes and weld deposits for gas shielded metal arc welding of non alloy and fine grain steels - Classification
CAN/CSA-W117.2-12Safety in welding, cutting, and allied processes
G40.20-13/G40.21-13General requirements for rolled or welded structural quality steel/ Structural quality steel
W178.1-14Certification of welding inspection organizations
W178.2-14Certification of welding inspectors
W47.1-09 Certification of companies for fusion welding of steel
W47.2-11 Certification of companies for fusion welding of aluminum
W48-14Filler metals and allied materials for metal arc welding
W55.3-08 Certification of companies for resistance welding of steel and aluminum
W59-13Welded steel construction
W59.2-M1991 Welded Aluminum Construction
CAN/CSA-Z662-15Oil and gas pipeline systems

British Standards (BS)

are developed, maintained and published by BSI Standards which is UK's National Standards Body. The following is a partial list of standards specific to welding:
Standard NumberDescription
BS 499-1Welding terms and symbols. Glossary for welding, brazing and thermal cutting
BS 499-2CWelding terms and symbols. European arc welding symbols in chart form
BS 2633Specification for Class I arc welding of ferritic steel pipework for carrying fluids
BS 2971Specification for class II arc welding of carbon steel pipework for carrying fluids
BS 4515-1Specification for welding of steel pipelines on land and offshore - Part 1: Carbon and carbon manganese steel pipelines
BS 4515-2Specification for welding of steel pipelines on land and offshore. Duplex stainless steel pipelines
PD 6705-2Structural use of steel and aluminium. Recommendations for the execution of steel bridges to BS EN 1090-2
PD 6705-3Structural use of steel and aluminium. Recommendations for the execution of aluminium structures to BS EN 1090-3

International Organization for Standardization (ISO) Standards

has developed over 18500 standards and over 1100 new standards are published every year. The following is a partial list of the standards specific to welding:
Standard NumberDescription
ISO 2553Welded, brazed and soldered joints - symbolic representation on drawings
ISO 2560Welding consumables. Covered electrodes for manual metal arc welding of non-alloy and fine grain steels. Classification
ISO 3580Covered electrodes for manual arc welding of creep-resisting steels - Code of symbols for identification
ISO 3581Covered electrodes for manual arc welding of stainless and other similar high alloy steels - Code of symbols for identification
ISO 3834Quality requirements for fusion welding of metallic materials, five parts.
ISO 4063Welding and allied processes - Nomenclature of processes and reference numbers
ISO 5817Welding. Fusion-welded joints in steel, nickel, titanium and their alloys. Quality levels for imperfections
ISO 6520-1Welding and allied processes — Classification of geometric imperfections in metallic materials — Part 1: Fusion welding
ISO 6520-2Welding and allied processes — Classification of geometric imperfections in metallic materials — Part 2: Welding with pressure
ISO 6947Welds. Working positions. Definitions of angles of slope and rotation
ISO 9606Qualification test of welders — Fusion welding, parts 1 to 5
ISO 9692-1Welding and allied processes. Recommendations for joint preparation. Manual metal-arc welding, gas-shielded metal-arc welding, gas welding, TIG welding and beam welding of steels
ISO 9692-2Welding and allied processes. Joint preparation. Submerged arc welding of steels
ISO 9692-3Welding and allied processes. Joint preparation. Part 3: TIG and MIG welding of aluminium and its alloys
ISO 9692-4Welding and allied processes. Joint preparation. Part 4: Clad steels
ISO 13847Petroleum and natural gas industries - Pipeline transportation systems - Welding of pipelines
ISO 13916Welding - Guidance on the measurement of preheating temperature, interpass temperature and preheat maintenance temperature
ISO 13918Welding - Studs and ceramic ferrules for arc stud welding
ISO 13919-1Welding - Electron and laser-beam welded joints - Guidance on quality level for imperfections - Part 1: Steel
ISO 13919-2Welding - Electron and laser-beam welded joints - Guidance on quality level for imperfections - Part 2: Aluminium and its weldable alloys
ISO 13920Welding - General tolerances for welded constructions - Dimensions for lengths and angles - Shape and position
ISO 14112Gas welding equipment - Small kits for gas brazing and welding
ISO 14175Welding consumables — Gases and gas mixtures for fusion welding and allied processes. Replaced EN 439:1994 in Europe.
ISO 14341Welding consumables. Wire electrodes and deposits for gas shielded metal arc welding of non alloy and fine grain steels. Classification
ISO 14554Resistance welding
ISO 14744Electron beam welding, six parts
ISO 15607Specification and qualification of welding procedures for metallic materials - General rules
ISO/TR 15608Welding - Guidelines for a metallic material grouping system
ISO 15609Specification and qualification of welding procedures for metallic materials - Welding procedure specification, five parts.
ISO 15610Specification and qualification of welding procedures for metallic materials — Qualification based on tested welding consumables
ISO 15611Specification and qualification of welding procedures for metallic materials — Qualification based on previous welding experience
ISO 15612Specification and qualification of welding procedures for metallic materials — Qualification by adoption of a standard welding procedure
ISO 15613Specification and qualification of welding procedures for metallic materials — Qualification based on pre-production welding test
ISO 15614Specification and qualification of welding procedures for metallic materials - Welding procedure test, 13 parts.
ISO 15615Gas welding equipment. Acetylene manifold systems for welding, cutting and allied processes. Safety requirements in high-pressure devices
ISO 15618-1Qualification testing of welders for under-water welding. Diver-welders for hyperbaric wet welding
ISO 15618-2Qualification testing of welders for under-water welding. Diver-welders and welding operators for hyperbaric dry welding
ISO 17635Non-destructive testing of welds. General rules for metallic materials
ISO 17660-1Welding - Welding of reinforcing steel - Part 1: Load-bearing welded joints
ISO 17660-2Welding - Welding of reinforcing steel - Part 1: Non-load bearing welded joints
ISO/TR 20172Welding — Grouping systems for materials — European materials
ISO/TR 20173Welding — Grouping systems for materials — American materials
ISO/TR 20174Welding — Grouping systems for materials — Japanese materials
ISO 24394Welding for aerospace applications. Qualification test for welders and welding operators. Fusion welding of metallic components