AWS D14.4/D14.4M, 2019 Edition, 2019 - Specification for the Design of Welded Joints in Machinery and Equipment
This specification establishes design, quality, and inspection requirements for carbon and low-alloy steel welded connections in machinery and equipment. It addresses topics including weld joint design, workmanship, quality acceptance criteria, non-destructive inspection methods (visual, radiographic, ultrasonic, magnetic particle, and liquid penetrant), repair of weld defects, and heat treatment.