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ASTMA800amp;A800M2001奥氏体合金钢铸件中铁素体含量的估算

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Designation: A 800/A 800M – 01Standard Practice forSteel Casting, Austenitic Alloy, Estimating Ferrite ContentThereof1This standard is issued under the fixed designation A 800/A 800M; the number immediately following the designation indicates the yearof original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval.A superscript epsilon (e ) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This practice covers procedures and definitions forestimating ferrite content in certain grades of austenitic iron-chromium-nickel alloy castings that have compositions bal-anced to create the formation of ferrite as a second phase inamounts controlled to be within specified limits. Methods aredescribed for estimating ferrite content by chemical, magnetic,and metallographic means.1.2 The grades covered by this practice are: CF-3, CF-3A,CF-8, CF-8A, CF-3M, CF-3MA, CF-8M, CF-8C, CG-8M, andCH-10.1.3 The values stated in either inch-pound units or SI unitsare to be regarded separately as standard. Within the text, theSI units are shown in brackets. The values stated in eachsystem are not exact equivalents; therefore, each system mustbe used independently of the other. Combining values from thetwo systems may result in nonconformance with the practice.1.4 This standard does not purport to address the safetyconcerns, if any, associated with its use. It is the responsibilityof the user of this standard to establish appropriate safety andhealth practices and determine the applicability of regulatorylimitations prior to use.2. Referenced Documents2.1 ASTM Standards:A 351/A 351M Specification for Castings, Austenitic, Aus-tenitic–Ferritic (Duplex)...

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ASTMA800amp;A800M2001奥氏体合金钢铸件中铁素体含量的估算

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