AWS B2.1-5A-224 : 2022, Standard Welding Procedure Specification for Gas Tungsten Arc Welding Followed by Shielded Metal Arc Welding of Chromium-Molybdenum Steel , ER90S-B3 and E9018-B3, 1/8 Inch [3 Mm] Through 1/2 Inch [13 Mm] Thick, As-Welded Condition; 1/8 Inch [3 Mm] Through 1-1/2 Inch [38 Mm] Thick, PWHT Condition, Primarily Pipe Applications : AWS B2.1-5A-224

2022, Standard Welding Procedure Specification for Gas Tungsten Arc Welding Followed by Shielded Metal Arc Welding of Chromium-Molybdenum Steel , ER90S-B3 and E9018-B3, 1/8 Inch [3 Mm] Through 1/2 Inch [13 Mm] Thick, As-Welded Condition; 1/8 Inch [3 Mm] Through 1-1/2 Inch [38 Mm] Thick, PWHT Condition, Primarily Pipe Applications