AWS B2.1-4-221:1999(R2009)-Wps:铬钼钢主要用于管道应用（M-4/P-4 第1组或第2组）-Gtaw（自耗镶块根部）然后是铬钼钢（M-4/P-4 第1组或第2组）厚度为1/8至1/2英寸焊接状态下的保护金属电弧焊-国家数字标准馆

现行 AWS B2.1-4-221:1999(R2009)

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Wps:Chromium Molybdenum Steels, Primarily Pipe Applications (M-4/P-4, Group 1 or 2) - Gtaw (Consumable Insert Root) Followed by Shielded Metal Arcwelding of Chromium-Molybdenum Steel (M-4/P-4, Group 1 OR 2), 1/8 Through 1/2 Inch Thick, As-Welded Condition Wps:铬钼钢主要用于管道应用（M-4/P-4 第1组或第2组）-Gtaw（自耗镶块根部）然后是铬钼钢（M-4/P-4 第1组或第2组）厚度为1/8至1/2英寸焊接状态下的保护金属电弧焊

发布日期： 1999-01-01

本标准包含厚度范围为1/8至1/2英寸的铬钼钢的基本焊接变量。在焊接状态下，或1/8至1-1/2英寸。在焊后热处理（PWHT）条件下，使用带自耗镶块根部的手动钨极气体保护焊，然后进行保护金属极电弧焊。它引用了制作焊接件所需的母材和操作条件、填充金属规范以及坡口焊缝的允许接头设计。本焊接工艺规范（WPS）主要用于管道应用。

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 welding procedure specification (WPS) was developed primarily for pipe applications.

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发布单位或类别：美国-美国焊接协会

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