T/CWAN 0058-2021 Swing arc welding process specifications for automatic welding
T/CWAN 0058-2021 Swing arc welding process specifications for automatic welding
Basic Information
Scope
This document specifies the terms and definitions, general requirements, welding equipment, welding materials, welding grooves, and welding process requirements for swing submerged arc automatic welding in ship and steel structure construction, as well as post-welding inspection and repair, and safety protection.
This document is applicable to swing submerged arc automatic welding in flat welding positions of carbon structural steels with thicknesses of 15 mm to 60 mm (Q235A, Q235B, Q235C, Q235D, Q275A, Q275B, Q275C, Q275D steels), low-alloy high-strength structural steels (Q355B, Q355C, Q355D, Q355NB, Q355NC, Q355ND, Q355MB, Q355MC, Q355MD, Q390B, Q390C, Q390D, Q390NB, Q390NC, Q390ND, Q390MB, Q390MC, Q390MD, Q420B, Q420C, Q420NB, Q420NC, Q420ND, Q420MB, Q420MC, Q420MD steels), and other steels with similar chemical compositions and comparable mechanical properties.