AWS B2.1-4-221 : 2021

AWS B2.1-4-221 : 20211475004
AWS B2.1-4-221 : 2021
Title: Standard Welding Procedure Specification (SWPS) for Gas Tungsten Arc Welding (Consumable Insert Root) followed by Shielded Metal Arc Welding of Chromium-Molybdenum Steel (M-4/P-4, Group 1 or 2)


Year: 2021
Publisher: American Welding Society
Availability: Within 1-2 working days