AWS B2.1-5A-226 PDF

AWS B2.1-5A-226 – Standard Welding Procedure Specification (SWPS) for Gas Tungsten Arc Welding (Consumable Insert Root) followed by Shielded Metal Arc Welding of Chromium-Molybdenum Steel (M-5A/P-5A), 1/8 through 1/2 in. Thick, As-Welded Condition; 1/8 through 1-1/2 in. Thick, PWHT Condition, IN521, ER90S-B3, and E9

This standard contains the essential welding variables for chromium-molybdenum steel in the thickness range of 1/8 through1/2 in. in the as-welded condition; or 1/8 through 1-1/2 in. in the postweld heat treated (PWHT) condition, using manual gastungsten arc welding with a consumable insert root, followed by shielded metal arc welding. It cites the base metals andoperating conditions necessary to make the weldment, the filler metal specifications, and the allowable joint designs forgroove welds. This standard welding procedure specification (SWPS) was developed primarily for pipe applications.