This document specifies the terms and definitions of stainless steel butt welded pipe fittings for ships, classification, basic requirements, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage, and quality commitments. This document applies to stainless steel butt welded pipe fittings for ships (hereinafter referred to as pipe fittings).
T/ZZB 2554-2021 history
2021T/ZZB 2554-2021 Stainless steel butt-welded pipe fittings for ships