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Welding-standards are documents that govern and guide welding activities.

This is according to the American Welding Society (AWS).

Standards describe technical requirements for a material, process, product, system or service.

They give also information on equipment, methods, procedures and tests.

These are helpful to demonstrate that the requirements are being met.

"Welding-standards" is a comprehensive term that includes codes, specifications, recommended practices, classifications, methods and guides.

Differences appear in them as a consequence of different purposes pursued by their writers.

Therefore the various documents, whenever called for by a contract, although similar in content, are not interchangeable.

Codes, usually applicable to processes, explicitly indicate mandatory actions.

Specifications provide requirements, generally for products.

The voluntary character of Welding-standards becomes mandatory when so established by procurement documents, or when specified by governmental authorities having jurisdiction, for public safety, upon that type of regulated subject.

If you did not yet find what you need, why not typing your question in the following Search Box?

The larger scope of "standardization", that includes of course Welding-standards, is

  • to promote compatibility and competition of products and services (think of different electrodes),
  • to improve quality and reliability at a reasonable price, and
  • to simplify products for greater usability and ease of maintenance.

With the progress of globalization and international supplies of goods and services all over the world, Welding-standards are required to be increasingly understood and applicable everywhere.

Therefore there is an ongoing effort to obtain the largest available consensus on truly international Welding-standards, issued by ISO (International Standardization Organization).

However not all international standards are written in English.

Although we cannot cover every single document that may be required, we present hereafter a list of most popular Welding-standards hoping to do a service to our readers who may look for particular answers to their problems.

Reading and learning Welding-standards is also a recommended self-improvement habit that can contribute noticeably to personal growing and professionalism.

In other pages of this Website, many other Welding-standards are available which refer to those subjects.

If however our readers cannot find what they need, they are urged to write us by e-mail.

Click on the Contact Us button in the NavBar at top left of every page to send us your Questions and Feedback.

Most Important Welding-standards

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ANSI/AWS D1.1/D1.1M:2010
Structural Welding Code - Steel
Edition: 22nd
American Welding Society / 11-Mar-2010 / 572 pages

AWS D1.1-BI: 2008
The Official Book of D1.1 Interpretations
American Welding Society / 01-Jan-2008

AWS D1.1 Structural Welding Code Steel - Reference Manual:
Code Clinic Reference Manual

American Welding Society / 2010 / 166 pages

ANSI/AWS D1.2/D1.2M:2008
Structural Welding Code - Aluminum
Edition: 5th
American Welding Society / 23-Jun-2008 / 228 pages

ANSI/AWS D1.3/D1.3M:2008
Structural Welding Code - Sheet Steel
Edition: 5th, with Errata
American Welding Society / 23-Jul-2007 / 100 pages

ANSI/AWS D1.4/D1.4M:2011
Structural Welding Code - Reinforced Steel
Edition: 7th
American Welding Society / 31-Jan-2011 / 86 pages

ANSI/AWS D1.5M/D1.5:2010
Bridge Welding Code (Joint Publication with AASHTO),
Edition: 6th
American Welding Society / 18-Aug-2010 / 480 pages

ANSI/AWS D1.6/D1.6M:2007
Structural Welding Code - Stainless Steel
Edition: 2nd
American Welding Society / 04-Jan-2007 / 294 pages

ASME Section IX
2010 ASME Boiler and Pressure Vessel Code, Section IX:
Welding and Brazing Qualifications,
Includes 2011 Addenda Reprint
American Society of Mechanical Engineers / 01-Jul-2010 / 350 pages

API Std 1104 (R2010)
Welding of Pipelines and Related Facilities
20th Edition, Includes Errata 1 (2007) and 2 (2008)
American Petroleum Institute / 07-Nov-2005 / 70 pages

API Std 620
Design and Construction of Large, Welded,
Low-Pressure Storage Tanks

Eleventh Edition, Includes Addendum 1 (2009) and Addendum 2 (2010)
Edition: 11th
American Petroleum Institute / 01-Feb-2008 / 254 pages
Amendments: API Std 620 Addendum 1 , API Std 620 Addendum 2

API Std 650
Welded Tanks for Oil Storage
11th Edition, Includes Addendum 1 (2008), Addendum 2 (2009), Addendum 3 (2011), Errata (October 2011)
Edition: 11th
American Petroleum Institute / 01-Jun-2007 / 376 pages
Amendments: API Std 650 Addendum 1 , API Std 650 Addendum 2
API Std 650 Addendum 3 , API Std 650 Errata

Recommended Practice No. SNT-TC-1A, 2011 Edition
and ASNT Standard Topical Outlines for Qualification of Nondestructive Testing Personnel
(Includes ANSI/ASNT CP-105-2011)
American Society for Nondestructive Testing / 2011 / 188 pages

BS EN 13445-1:2009
Unfired pressure vessels. General
British-Adopted European Standard / 30-Sep-2009 / 44 pages

BS EN 12952-10:2002
Water-tube boilers and auxiliary installations. Requirements for safeguards against excessive pressure
British Standard / European Standard
08-Oct-2002 / 14 pages

BS EN 12953-1:2002
Shell boilers. General
British Standard / European Standard
14-Jun-2002 / 26 pages

BS EN 13480-1:2002
Metallic industrial piping. General
British-Adopted European Standard / 04-Jul-2002 / 18 pages

BS EN ISO 5817:2007
Welding. Fusion-welded joints in steel, nickel, titanium and their alloys (beam welding excluded). Quality levels for imperfections
British Standard / European Standard / International Organization for Standardization, 31-Aug-2007, 36 pages

Indian Boiler Regulations (IBR) 1950

How can you solve
your Welding Problems?

Click on Welding Consultation and
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An Article on Changes in AWS D1.1 was published (11) in Issue 62 of Practical Welding Letterfor October 2008.
Click on PWL#062 to read it

An Article on European Welding Fabrication Standards was published (2) in Issue 89 of Practical Welding Letter for January 2011.
Click on PWL#089 to see it.

An Article on Complying with Welding Codes was published (3) in Issue 94 of Practical Welding Letter for June 2011.
Click on PWL#094 to see it.

An Article on ASME IX Code Changes of Heat Input Calculation was published (11) in Issue 110 of Practical Welding Letter for October 2012, with reference links to two sources.
Click on PWL#110 to see it.

An Article on CASTI Guidebook to ASME Section IX was published (7) in Issue 117 of Practical Welding Letter for May 2013.
Click on PWL#117 to see it.

An Article on Advice to the New Welding Engineer was published (2) in Issue 143 of Practical Welding Letter for July 2015.
Click on PWL#143 to see it.

An Article on Changes to ASME Section IX (3) and another one on Filler Metal Spec Changes (4) were published in issue 144 of Practical Welding Letter for August 2015.
Click on PWL#144 to see them.

An Article on Nuclear grade amendment was published (11) in Issue 145 of Practical Welding Letter for September 2015.
Click on PWL#145.

An Introduction to Welding-certification was published (8) in Issue 148 of Practical Welding Letter for December 2015.
Click on PWL#148.

An Introduction to Weld-quality and a new Resources Page on the same subject were published (8) in Issue 149 of Practical Welding Letter for January 2016.
Click on PWL#149.

A note introducing the new edition of the Bridge Welding Code was published (2) in Issue 152 of Practical Welding Letter for April 2016.
Click on PWL#152.

An Article on An Update on AWS Classification Requirements was published (4) in Issue 154 of Practical Welding Letter for June 2016.
Click on PWL#154.

An Article on Worries, about inadequacy of new Welding Engineers, was published (11) in Issue 156 of Practical Welding Letter for August 2016.
Click on PWL#156.

An Article on Standards for Safe Robotic Welding was published (2) in Issue 168 of Practical Welding Letter for August 2017.
Click on PWL#168.

An Article on New ASME BPVC Section IX was published (7) in Issue 169 of Practical Welding Letter for September 2017.
Click on PWL#169.

For an Overview of European Standards, we would like to refer you to
where you can get detailed information and advice.

Watch the following Video:

AWS Careers in Welding - Trailer Preview


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Welding-standards are not only mandatory documents. They are invaluable sources of information and know how for one's instruction and self-improvement...