Welding Procedure Qualification Specification DL/T 868-2004

Author: None
Publisher:
Publish Date: 2004-06-01
Features: This standard specifies the rules, test methods, and qualification criteria for welding process qualification (hereinafter referred to as qualification) before the welding work and welder technical assessment work of steel equipment such as boilers, pipelines, pressure vessels, and load-bearing steel structures in the power industry are carried out. This standard applies to welding process qualification for welding methods such as shielded metal arc welding (SMAW), tungsten inert gas welding (TIG), gas metal arc welding (GMAW), flux-cored arc welding (FCAW), gas welding, and submerged arc welding.