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
1/8至1/2英寸铬钼钢(M-5A/P-5A)的气体保护钨极电弧焊(自耗镶块根部)和金属保护电弧焊的标准焊接工艺规范(SWPS) 厚 如焊接状态;1/8至1-1/2英寸 厚度、焊后热处理条件、IN521、ER90S-B3和E9
This standard contains the essential welding variables for chromium-molybdenum steel in the thickness range of 1/8 through
1/2 in. in the as-welded condition; or 1/8 through 1-1/2 in. in the postweld heat treated (PWHT) condition, using manual gas
tungsten arc welding with a consumable insert root, followed by shielded metal arc welding. It cites the base metals and
operating conditions necessary to make the weldment, the filler metal specifications, and the allowable joint designs for
groove welds. This standard welding procedure specification (SWPS) was developed primarily for pipe applications.