1 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 wrought carbon steel without specific inspection requirements.

It specifies:

1. steel grade and its chemical compositions;

2. mechanical properties;

3. dimensions and tolerances;

4. requirements for inspection and testing;

5. inspection documents;

6. marking;

7. protection and packaging.