ASTM A522/A522M-2014 低温工作用锻制或轧制含镍8%和9%的合金钢法兰、配件、阀门和零件的规格

tag：发布日期： 2020-03-25

　　ASTM A522/A522M-2014

　　中文名称：低温工作用锻制或轧制含镍8%和9%的合金钢法兰、配件、阀门和零件的规格

　　英文名称：Standard Specification for Forged or Rolled 8 and 9% Nickel Alloy Steel Flanges, Fittings, Valves, and Parts for Low-Temperature Service

　　原文名称：Standard Specification for Forged or Rolled 8 and 9% Nickel Alloy Steel Flanges, Fittings, Valves, and Parts for Low-Temperature Service

　　范围：This specification covers the 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. Two types of materials are specified according to the chemical composition: type I and type II. Materials for forgings shall consist of ingots, or either forged or rolled blooms, billets, or bars. Except for all types of flanges, elbows, return bends, tees, and header tees, other parts including NPS 4 may be machined from hot-rolled or forged bar. The steel shall conform to the specified chemical requirements for carbon, manganese, phosphorus, sulfur, silicon, and nickel. The following methods of heat treatment shall be used: quenched and tempered and double normalized and tempered. Two tests shall be done to meet the mechanical requirements of the material: tension test and Charpy impact test.

　　标准组织：美国试验与材料协会标准(ASTM)

　　ICS分类号：(23.040.40)金属配件

　　中国标准分类号：(J15)管路附件

　　同一中标分类下的其他标准

　　• API TR 6F2-1999

　　• API TR 6AF1-1998

　　• ASME B16.4 INTERPRETATIONS-1998

　　B16.4-1998 灰铸铁螺纹配件(125和250类)的解释

　　• ASME B16.5-2009

　　NPS 1/2至NPS 24米制/英制标准管法兰和法兰配件

　　• ASME B16.5-2013

　　NPS 1/2至NPS 24米制/英制标准管法兰和法兰配件