AWS B2.1-8-318:2016

Standard Welding Procedure Specification for Naval Applications (SWPS-N) for Gas Tungsten Arc Welding of Austenitic Stainless Steel (S-8), 1/8 inch [3 mm] through 1-1/2 inch [38 mm] Thick, MIL-3XX, in the As-Welded Condition, Primarily Pipe for Naval Applications
standard by American Welding Society, 01/01/2016

AWS B2.1-1-208:2019

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, 03/01/2019

AWS B2.1-1-205:1996 (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, E6010 (Vertical Uphill), Followed by E7018 (Vertical Uphill), As-Welded or PWHT Condition, Primarily Pipe Applications
standard by American Welding Society, 05/28/1996