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 wrought carbon steel without specific inspection requirements.
It specifies:
a) steel grade and its chemical compositions;
b) mechanical properties;
c) dimensions and tolerances;
d) requirements for inspection and testing;
e) inspection documents;
f) marking;
g) protection and packaging.