【英文标准名称】: Standard Specification for Steel Castings, Stainless, Precipitation Hardening 【原文标准名称】: 沉淀硬化不锈钢铸件的标准规范 【标准号】: ASTM A747/A747M-2007 【标准状态】: 现行 【国别】: 美国 【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】: A01.18【标准类型】: (Specification)【标准水平】: ()【中文主题词】: 【英文主题词】: precipitation hardening stainless steel; stainless steel; steel castings【摘要】: 1.1 This specification covers iron-chromium-nickel-copper corrosion-resistant steel castings, capable of being strengthened by precipitation hardening heat treatment. 1.2 These castings may be used in services requiring corrosion resistance and high strengths at temperatures up to 600176;F [315176;C]. They may be machined in the solution-annealed condition and subsequently precipitation hardened to the desired high-strength mechanical properties specified in Table 1 with little danger of cracking or distortion. 1.3 The material is not intended for use in the solution-annealed condition. Note 1 - If the service environment in which the material is to be used is considered conducive to stress-corrosion cracking, precipitation hardening should be performed at a temperature that will minimize the susceptibility of the material to this type of attack. 1.4 Supplementary requirements of an optional nature are provided for use at the option of the purchaser. The Supplementary requirements shall apply only when specified individually by the purchaser in the purchase order or contract.1.5 This specification is expressed in both inch-pound units and in SI units; however, unless the purchase order or contract specifies the applicable M specification designation (SI units), the inch-pound units shall apply. The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard.【中国标准分类号】: J31【国际标准分类号】: 77_140_80【页数】: 4P.;A4【正文语种】: 英语 作者: jt-jxc 时间: 2015-1-22 13:38:43