AWS B2.1.001-90

AWS B2.1.001-90 Standard Welding Procedure Specification for Shielded Metal Arc Welding of Carbon Steel, (M-1/P-1, Group 1 or 2), 3/16 through 3/4 inch, in the as-Welded Condition, With Backing

standard by American Welding Society, 01/01/1990