Most recent
AWS B2.1/B2.1M-BMG:2021
Base Metal Grouping for Welding Procedures and Performance Qualification
This document provides the AWS base metal grouping for welding procedure and performance qualification and is identical to Annex C of AWS B2.1/B2.1M:2021, Specification for Welding Procedure and Performance Qualification.
American Welding Society [aws]