Work Item
ASTM WK85640

Revision of A778/A778M-22 Standard Specification for Welded, Unannealed Austenitic Stainless Steel Tubular Products


Paragraph 6.2 imposes a maximum limit of 3 longitudinal weld seams for tubular products 16" and larger. Paragraph 1.2 states "Tubular products having other diameters or wall thickness, or both, may be furnished provided it complies with all other requirements of this specification."
Although diameters up to 54" can be manufactured with 3 longitudinal seams, some end users require larger diameter A778 pipe.
This revision would impose a limit of 3 longitudinal weld seams up to 48", and a maximum of 5 longitudinal weld seams above 48".


Developed by Subcommittee: A01.10

Committee: A01

Staff Manager: W Scott Orthey

Work Item Status

Date Initiated: 03-14-2023

Technical Contact: Josh Bohman

Item: 000