AWS B2.1-5A-222:1999 (R2009)

Standard Welding Procedure Specification (SWPS) for Gas Tungsten Arc Welding of Chromium-Molybdenum Steel (M-5A/P-5A), ER90S-B3, 1/8 through 1/2 in. Thick, As-Welded Condition ; 1/8 through 3/4 in. Thick, PWHT Condition, Primarily Pipe Applications
standard by American Welding Society, 12/08/1999

AWS B2.1-1-208:1996 (R2007)

Standard WPS for Shielded Metal Arc Welding of Carbon Steel (M-1/P-1/S-1, Group 1 or 2), 1/8 through 1 1/2" Thick, E7018, As-Welded or PWHT Condition, Primarily Pipe Applications
standard by American Welding Society, 05/28/1996

AWS B2.1-5A-225:1999 (R2009)

Standard Welding Procedure Specification (SWPS) for Gas Tungsten Arc Welding (Consumable Insert Root) of Chromium-Molybdenum Steel (M-5A/P-5A), 1/8 through 1/2 in. Thick, As-Welded Condition; 1/8 through 3/4 in. Thick, PWHT Condition, IN521 and ER90S-B3, Primarily Pipe Applications
standard by American Welding Society, 12/08/1999

AWS B2.1-1/8-010:2015

Standard Welding Procedure Specification (SWPS) for Gas Tungsten Arc Welding of Carbon Steel (M-1/P-1), to Austenitic Stainless Steel (M-8/P-8), 18 through 10 Gauge, in the As-Welded Condition, with or without Backing
standard by American Welding Society, 01/14/2015

AWS B2.1-1-017:2018

Standard Welding Procedure Specification (SWPS) for Shielded Metal Arc Welding of Carbon Steel (M-1/P-1, Group 1 or 2), 1/8 inch [3 mm] through 1-1/2 inch [38 mm] Thick, E6010, As-Welded or PWHT Condition, Primarily Plate and Structural Applications
standard by American Welding Society, 04/10/2018

AWS B2.1-1-004:2002 (R2013)

Standard Welding Procedure Specification (Swps) for Gas Metal Arc Welding (Short Circuiting Transfer Mode) of Carbon Steel (M-1, Group 1), 18 through 10 Gauge, in the As-Welded Condition, with or without Backing
standard by American Welding Society, 01/01/2002

AWS B2.1-1/8-014:2002 (R2013)

Standard Welding Procedure Specification (Swps) for Shielded Metal Arc Welding of Carbon Steel to Austenitic Stainless Steel (M-1 to M-8/P-8/S-8, Group 1), 10 through 18 Gauge, in the As-Welded Condition, with or without Backing
standard by American Welding Society,