AWS A3.0M/A3.0:2025 — Standard Welding Terms and Definitions
Standard Welding Terms and Definitions Including Terms for Additive Manufacturing, Adhesive Bonding, Brazing, Soldering, Thermal Cutting, Thermal Spraying, and Nondestructive Examination
The American Welding Society’s authoritative glossary standard defining more than 1,500 welding and joining terms.
About the Project
Why use this?
AWS A3.0M/A3.0:2025 establishes the standard vocabulary for welding, brazing, soldering, thermal cutting, thermal spraying, additive manufacturing, adhesive bonding, and nondestructive examination. It is essential for writing unambiguous WPS documents, PQR records, inspection reports, drawings, specifications, and training materials.
A welding engineer should use this standard whenever terminology consistency matters: weld types, joint geometry, discontinuities, process names, testing terms, and symbols must mean the same thing across design, fabrication, quality, and inspection teams. The standard includes more than 1,500 defined terms, illustrations, classification charts, and corollary information. [140][141][148]
Key Features
- Defines over 1,500 welding and allied-process terms
- Covers additive manufacturing, adhesive bonding, brazing, soldering, thermal cutting, thermal spraying, and NDE
- Includes illustrations, classification charts, and corollary reference information
- Establishes consistent terminology for WPS, PQR, inspection, and compliance documents
- ANSI-approved American National Standard
- Reference / Repo
- https://pubs.aws.org/Download_PDFS/AWS_A3.0M_A3.0_2025_PV.pdf
- Free layer
- open-source