Welding Codes & Standards Welding is a critical process in various industries, and maintaining quality and safety standards is of utmost importance. Welding codes and standards play a vital role in achieving these objectives. They …
Written by: Sandeep Kumar
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Welding Codes & Standards
Welding is a critical process in various industries, and maintaining quality and safety standards is of utmost importance. Welding codes and standards play a vital role in achieving these objectives.
They provide guidelines and requirements for welding procedures, qualifications, inspections, and quality control.
Lets see the worldwide used Welding Codes & Standards…
AWS Welding Codes
The American Welding Society (AWS) is a renowned organization that develops and publishes welding codes and standards to promote safe and high-quality welding practices. These codes provide guidelines for various aspects of welding, including materials, procedures, qualifications, and inspections.
The American Welding Society (AWS) is a well-respected institution committed to advancing welding practices and ensuring their safety and quality. AWS develops and publishes a range of welding codes and standards that serve as valuable guidelines for different aspects of welding.
These codes cover essential areas such as materials, procedures, qualifications, and inspections. Let’s take a closer look at some notable AWS welding codes:
Let’s explore some of the key AWS welding codes:
AWS Codes D Series
The AWS D series codes refer to a set of welding codes developed by the American Welding Society (AWS) specifically for structural welding applications. These codes provide guidelines and requirements for welding procedures, qualifications, materials, inspections, and other aspects related to structural welding.
The D series codes cover various materials and structures commonly encountered in the construction industry. Let’s explore the key AWS D series codes:
Specification for the Welding of Hydraulic Cylinders
AWS D15.1
Railroad welding
AWS D15.2
Railroad welding practice supplement
AWS D16.1
Robotic arc welding safety
AWS D16.2
Robotic arc welding system installation
AWS D16.3
Robotic arc welding risk assessment
AWS D16.4
Robotic arc welder operator qualification
AWS D17.1
Aerospace fusion welding
AWS D17.2
Aerospace resistance welding
AWS D17.3
Aerospace friction stir welding (aluminum)
AWS D18.1
Hygienic tube welding (stainless steel)
AWS D18.2
Stainless steel tube discoloration guide
AWS D18.3
Hygienic equipment welding
AWS A- Series
AWS A-Series covers a range of specifications within the American Welding Society (AWS) related to filler metals, electrodes, and gases used in welding processes.
The American Society of Mechanical Engineers (ASME) has developed a range of welding codes that provide guidelines and requirements for various aspects of welding processes. These codes ensure the quality, safety, and integrity of welded components in different industries.
Let’s explore some of the key ASME welding codes:
ASME BPVC Section I
Rules for Construction of Power Boilers
ASME BPVC Section II
Part C: Specifications for Welding Rods, Electrodes and Filler Metals.
ASME BPVC Section III
Rules for Constructions of Nuclear Facility Components-Subsection NCA-General Requirements for Division 1 and Division 2
ASME BPVC Section IV
Rules for Construction of Heating Boilers
ASME BPVC Section V
Nondestructive Examination
ASME BPVC Section VIII
Rules for Construction of Pressure Vessels Division 1 and Division 2
ASME BPVC Section IX
Welding and Brazing Qualifications
ASME B16.25
Buttwelding ends
ASME B31.1
Power Piping
ASME B31.3
Process Piping
ASME B31.9
Building Services Piping
API Welding Codes and Standards
The American Petroleum Institute (API) has developed a comprehensive set of welding codes and standards specifically for the oil and gas industry. These codes and standards provide guidelines and requirements for welding processes, materials, and inspections to ensure the integrity and safety of equipment and structures used in the industry.
Let’s explore some of the key API welding codes and standards:
API 1104: Welding of Pipelines and Related Facilities
API 650: Standard for Welded Tanks for Oil Storage Tanks
API 620: Design and Construction of Large, Welded, Low-Pressure Storage Tanks
API 577: Welding Processes, Inspection, and Metallurgy
API RP 2201- Safe Hot Tapping Practices in the Petroleum and Petrochemical Industries
API 5L: Specification for Line Pipe
API RP 2Z: Recommended Practice for Preproduction Qualification for Steel Plates for Offshore Structures
API RP 1107– PIPELINE MAINTENANCE WELDING PRACTICES
API RP 582: Welding Guidelines for the Chemical, Oil, and Gas Industries
API RP 2009- Safe Welding, Cutting, and Hot Work Practices in the Petroleum and Petrochemical Industries
API 942– Controlling Weld Hardness of Carbon Steel Refinery Equipment to Prevent Environmental Cracking
API RP 571: Damage Mechanisms Affecting Fixed Equipment in the Refining Industry
API RP 934-A: Materials and Fabrication of 2 1/4Cr-1Mo, 2 1/4Cr-1Mo-1/4V Steel Heavy Wall Pressure Vessels for High-Temperature, High-Pressure Hydrogen Service
API RP 934-C: Materials and Fabrication of 11/4Cr-1/2Mo Steel Heavy Wall Pressure Vessels for High-pressure Hydrogen Service Operating at or Below 825 °F (440 °C)
API RP 934-D: Technical Report on the Materials and Fabrication Issues of 11/4Cr-1/2Mo and 1Cr-1/2Mo Steel Pressure Vessels
API RP 937: Evaluation of Design Criteria for Storage Tanks with Frangible Roof Joints
API RP 941: Steels for Hydrogen Service at Elevated Temperatures and Pressures in Petroleum Refineries and Petrochemical Plants
API TR 938-B– Use of 9Cr-1Mo-V (Grade 91) Steel in the Oil Refining Industry
API SPEC 6A– Specification for Wellhead and Tree Equipment
AS/NZS Welding Standards
The AS/NZS (Australian/New Zealand Standards) welding standards are a set of codes and specifications that provide guidelines and requirements for welding processes, procedures, and quality control in Australia and New Zealand. These standards ensure the safety, reliability, and quality of welded components and structures.
Standard Number
Description
AS/NZS 1554.1
Structural steel welding – Welding of steel structures
AS/NZS 1554.2
Structural steel welding – Stud welding (steel studs to steel)
AS/NZS 1554.3
Structural steel welding – Welding of reinforcing steel
AS/NZS 1554.4
Structural steel welding – Welding of high strength quenched and tempered steels
AS/NZS 1554.5
Structural steel welding – Welding of steel structures subject to high levels of fatigue loading
AS/NZS 1554.6
Structural steel welding – Welding stainless steels for structural purposes
AS/NZS 1554.7
Structural steel welding – Welding of sheet steel structures
AS/NZS 3992
Pressure equipment – Welding and brazing qualification
AS/NZS 4855
Welding consumables – Covered electrodes for manual metal arc welding
AS 4041
Pressure Piping
Here are some examples of AS/NZS welding standards:
AS/NZS 1554 Part 1: Structural Steel Welding – Welding of Steel Structures
AS/NZS 1554 Part 2: Structural Steel Welding – Welding of Steel Structures: Aluminium Structures
AS/NZS 2980: Qualification of Welders for Fusion Welding of Steels
AS/NZS ISO 9606.1: Qualification Testing of Welders – Fusion Welding – Steels
AS/NZS ISO 9606.2: Qualification Testing of Welders – Fusion Welding – Aluminum and Aluminum Alloys
AS/NZS ISO 9606.3: Qualification Testing of Welders – Fusion Welding – Copper and Copper Alloys
AS/NZS ISO 9606.4: Qualification Testing of Welders – Fusion Welding – Nickel and Nickel Alloys
AS/NZS ISO 9606.5: Qualification Testing of Welders – Fusion Welding – Titanium and Titanium Alloys
AS/NZS ISO 9606.6: Qualification Testing of Welders – Fusion Welding – Zirconium and Zirconium Alloys
AS/NZS 3992: Pressure Equipment – Welding and Brazing Qualification
AS/NZS 3678: Structural Steel – Hot-Rolled Plates, Floorplates, and Slabs
AS/NZS 5131: Structural Steelwork – Fabrication and Erection
These AS/NZS welding standards cover a wide range of welding applications, including structural steel, pressure vessels, aluminum structures, and thermoplastics. They provide specifications for welding procedures, welder qualifications, inspection, and quality control measures.
EN Welding Standards
EN 287-1
Qualification test of welders — Fusion welding — Part 1: Steels
EN 1090-1
Execution of steel structures and aluminium structures – Part 1: Requirements for conformity assessment of structural components
EN 1090-2
Execution of steel structures and aluminium structures – Part 2: Technical requirements for steel structures
EN 1090-3
Execution of steel structures and aluminium structures – Part 3: Technical requirements for aluminium structures
EN 1011-1
Welding — Recommendations for welding of metallic materials — Part 1: General guidance for arc welding
EN 1011-2
Welding — Recommendations for welding of metallic materials — Part 2: Arc welding of ferritic steels
EN 1011-3
Welding — Recommendations for welding of metallic materials — Part 3: Arc welding of stainless steels
EN 1011-4
Welding — Recommendations for welding of metallic materials — Part 4: Arc welding of aluminium and aluminium alloys
EN 1011-5
Welding. Recommendations for welding of metallic materials. Welding of clad steel
EN 1011-6
Welding. Recommendations for welding of metallic materials. Laser beam welding
EN 1011-7
Welding — Recommendations for welding of metallic materials — Part 7: Electron beam welding
EN 1011-8
Welding. Recommendations for welding of metallic materials. Welding of cast irons
EN 1993-1-8
Eurocode 3: Design of steel structures – Part 1-8: General – Design of joints
EN 13133
Brazing – Brazer approval
EN 22553
Welded, brazed and soldered joints – Symbolic representation on drawings
ISO Welding Standards
ISO 2560
Welding consumables. Covered electrodes for manual metal arc welding of non-alloy and fine grain steels. Classification
ISO 3580
Covered electrodes for manual arc welding of creep-resisting steels – Code of symbols for identification
ISO 3581
Covered electrodes for manual arc welding of stainless and other similar high alloy steels – Code of symbols for identification
ISO 3834
Quality requirements for fusion welding of metallic materials, five parts.
ISO 4063
Welding and allied processes – Nomenclature of processes and reference numbers
ISO 5817
Welding. Fusion-welded joints in steel, nickel, titanium and their alloys (beam welding excluded). Quality levels for imperfections
ISO 6520-1
Welding and allied processes — Classification of geometric imperfections in metallic materials — Part 1: Fusion welding
ISO 6520-2
Welding and allied processes — Classification of geometric imperfections in metallic materials — Part 2: Welding with pressure
ISO 6947
Welds. Working positions. Definitions of angles of slope and rotation
ISO 9606
Qualification test of welders — Fusion welding, parts 1 to 5
ISO 9692-1
Welding 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 9692-2
Welding and allied processes. Joint preparation. Submerged arc welding of steels
ISO 9692-3
Welding and allied processes. Joint preparation. Part 3: TIG and MIG welding of aluminium and its alloys
ISO 13847
Petroleum and natural gas industries – Pipeline transportation systems – Welding of Pipelines
ISO 13916
Welding – Guidance on the measurement of preheating temperature, interpass temperature and preheat mainteanance temperature
ISO 13918
Welding – Studs and ceramic ferrules for arc stud welding
ISO 13919-1
Welding – Electron and laser-beam welded joints – Guidance on quality level for imperfections – Part 1: Steel
ISO 13919-2
Welding – Electron and laser-beam welded joints – Guidance on quality level for imperfections – Part 2: Aluminium and its weldable alloys
ISO 13920
Welding – General tolerances for welded constructions – Dimensions for lengths and angles – Shape and position
ISO 14112
Gas welding equipment – Small kits for gas brazing and welding
ISO 14175
Welding consumables — Gases and gas mixtures for fusion welding and allied processes. Replaced EN 439:1994 in Europe.
ISO 14341
Welding consumables. Wire electrodes and deposits for gas shielded metal arc welding of non alloy and fine grain steels. Classification
ISO 14554
Resistance welding
ISO 14744
Electron beam welding, six parts
ISO 15607
Specification and qualification of welding procedures for metallic materials – General Rules
ISO/TR 15608
Welding – Guidelines for a metallic material grouping system
ISO 15609
Specification and qualification of welding procedures for metallic materials – Welding procedure specification, five parts.
ISO 15610
Specification and qualification of welding procedures for metallic materials — Qualification based on tested welding consumables
ISO 15611
Specification and qualification of welding procedures for metallic materials — Qualification based on previous welding experience
ISO 15612
Specification and qualification of welding procedures for metallic materials — Qualification by adoption of a standard welding procedure
ISO 15613
Specification and qualification of welding procedures for metallic materials — Qualification based on pre-production welding test
ISO 15614
Specification and qualification of welding procedures for metallic materials – Welding procedure test, 13 parts.
ISO 17635
Non-destructive testing of welds. General rules for metallic materials
ISO/TR 20172
Welding — Grouping systems for materials — European materials
ISO/TR 20173
Welding — Grouping systems for materials — American materials
ISO/TR 20174
Welding — Grouping systems for materials — Japanese materials European Union
