AWS B2.1.1/8.227 : 2002
AWS B2.1.1/8.227 : 2002
STANDARD WELDING PROCEDURE SPECIFICATION (SWPS) FOR GAS TUNGSTEN ARC WELDING OF CARBON STEEL (M-1/P-1, GROUPS 1 OR 2) TO AUSTENITIC STAINLESS STEEL (M-8/P-8, GROUP 1), 1/16 THROUGH 1-1/2 INCH THICK, ER309(L), AS-WELDED CONDITION, PRIMARILY PIPE APPLICATIONS
American Welding Society