This specification provides the minimum fabrication, equipment, material, process procedure requirements, as well as
inspection requirements for the furnace brazing of steels, copper, copper alloys, and heat- and corrosion-resistant alloys
and other materials that can be adequately furnace brazed (the furnace brazing of aluminum alloys is addressed in AWS
C3.7M/C3.7,Specification for Aluminum Brazing). This specification provides criteria for classifying furnace brazed
joints based on loading and the consequences of failure and quality assurance criteria defining the limits of acceptability
in each class. This specification defines acceptable furnace brazing equipment, materials, and procedures, as well as the
required inspection for each class of joint.