ASTM A522/A522M-2007 低温环境用锻造或轧制8%和9%镍合金钢法兰,配件和部件标准规格

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                   【英文标准名称】:     Standard Specification for Forged or Rolled 8 and 9% Nickel Alloy Steel Flanges, Fittings, Valves, and Parts for Low-Temperature Service            【原文标准名称】:     低温环境用锻造或轧制8%和9%镍合金钢法兰,配件和部件标准规格            【标准号】:     ASTM A522/A522M-2007            【标准状态】:     现行            【国别】:                 【发布日期】:     2007    【实施或试行日期】: 【发布单位】: 美国材料与试验协会(US-ASTM)【起草单位】: A01.22【标准类型】: (Specification)【标准水平】: ()【中文主题词】: 【英文主题词】: low temperature applications; nickel alloy steel; pipe fittings; steel; piping applications; pressure containing parts; steel flanges; steel forgings; alloy; steel valves【摘要】: 1.1 This specification covers 8 and 9 % nickel-alloy steel forged or rolled flanges, fittings, valves, and parts intended for use in welded pressure vessels for low-temperature service. The specification is applicable to forgings with maximum section thickness of 3 in. [75 mm] in the double normalized and tempered condition and 5 in. [125 mm] in the quenched and tempered condition. Forgings under this specification are intended for service at operating temperatures not lower than -320 176;F [-196 176;C] for Type I or -275 176;F [-170 176;C] for Type II or higher than 250 176;F [121 176;C].1.2 Material under this specification is available in two types having different chemical compositions as follows:TypeNominal Nickel Content, % I9 II8         
         

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