AWS C3.9M/C3.9:2020 PDF

This specification presents the minimum fabrication and quality requirements for the resistance brazing of materials such as steels, stainless steels, copper, copper alloys, and heat- or corrosion-resistant materials as well as other materials that can be adequately resistance brazed.

The purpose of this specification is to standardize resistance brazing process requirements and control braze joint quality for all applications requiring brazed joints of assured quality. This document establishes the minimum requirements for processes and products with explanatory information so that sources of ambiguity are minimized. It assigns responsibility for the ultimate quality of the brazed product to a single organization and permits that organization to modify requirements if appropriate to the application. It requires proper documentation of any such modifications.