ASTM A800/A800M-2014 奥氏体合金钢铸件中铁素体含量估计规程

　　ASTM A800/A800M-2014

　　中文名称：奥氏体合金钢铸件中铁素体含量估计规程

　　英文名称：Standard Practice for Steel Casting, Austenitic Alloy, Estimating Ferrite Content Thereof

　　原文名称：Standard Practice for Steel Casting, Austenitic Alloy, Estimating Ferrite Content Thereof

　　范 围：The tensile and impact properties, the weldability, and the corrosion resistance of iron-chromium-nickel alloy castings may be influenced beneficially or detrimentally by the ratio of the amount of ferrite to the amount of austenite in the microstructure. The ferrite content may be limited by purchase order requirements or by the design construction codes governing the equipment in which the castings will be used. The quantity of ferrite in the structure is fundamentally a function of the chemical composition of the alloy and its thermal history. Because of segregation, the chemical composition, and, therefore, the ferrite content, may differ from point to point on a casting. Determination of the ferrite content by any of the procedures described in the following practice is subject to varying degrees of imprecision which must be recognized in setting realistic limits on the range of ferrite content specified. Sources of error include the following:

　　发布日期：2014-05-01

　　实施日期：2014-05-01

　　标准组织：美国试验与材料协会标准(ASTM)

　　ICS分类号：(77.140.80)钢铁铸件

　　中国标准分类号：(J31)铸造

　　同一中标分类下的其他标准

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　　• ASTM A126-2004(2014)　　阀门、法兰及管道配件用灰铸铁件规格

　　• ASTM A216/A216M-2014e1　　高温作业用适于熔焊的碳素钢铸件规格

　　• ASTM A217/A217M-2014　　高温承压件用马氏体不锈钢和合金钢铸件的规格

　　• ASTM A220/A220M-1999(2014)　　珠光体可锻铸铁规格

　　• AECMA PREN 2233-1998　　航空航天系列.真空熔化非热处理精密铸件耐热合金Ni-CD1701(NiCo15Cr10Al6Ti5Mo3) a或 直径D小于或等于50mm

　　• AECMA PREN 2441-1981　　航空航天系列钢 FE-PL711 1250MPa小于或等于Rm小于或等于1450MPa 锻件 De小于或等于16mm.第1版

　　• AECMA PREN 2445-1997　　航空航天系列气体熔化钢FE-PL8201(41NiCrMo2) 调质锻件De小于或等于45 mm 900MPa小于或等于Rm小于或等于1100MPa 2版

　　• AECMA PREN 2455-1981　　航空航天系列FE-PL73 880MPa小于或等于Rm小于或等于1080MPa铸件 De小于或等于150mm.第1版