EN 10253-3:2026

Butt-welding pipe fittings - Part 3: Wrought austenitic and austenitic-ferritic (duplex) stainless steels without specific inspection requirements EN 10253-3:2026

Publication date:   Jun 4, 2026

Scope

This document specifies the technical delivery requirements for seamless and welded butt-welding fittings (elbows, concentric and eccentric reducers, equal and reducing tees, caps) made of austenitic and austenitic-ferritic (duplex) stainless steel without specific inspection requirements.
This document specifies:
— steel grades and their chemical compositions;
— mechanical properties;
— dimensions and tolerances;
— requirements for inspection and testing;
— inspection documents;
— marking;
— handling and packaging.