AWS B2.1.4.218 : 1999 : INC : ERR 1
AWS B2.1.4.218 : 1999 : INC : ERR 1
STANDARD WELDING PROCEDURE SPECIFICATION (SWPS) FOR SHIELDED METAL ARC WELDING OF CHROMIUM-MOLYBDENUM STEEL (M-4/P-4, GROUP 1 OR 2), E8018-B2, 1/8 THROUGH 1/2 IN. THICK, AS-WELDED CONDITION; 1/8 THROUGH 1-1/2 IN. THICK, PWHT CONDITION, PRIMARILY PIPE APPLICATIONS
American Welding Society