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    ASTM A1095 - 15(2019)

    Standard Specification for High-Silicon Molybdenum Ferritic Iron Castings

    Active Standard ASTM A1095 | Developed by Subcommittee: A04.02

    Book of Standards Volume: 01.02

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    1. Scope

    1.1 This specification covers castings made of high-silicon molybdenum ferritic iron, commonly known as SiMo. This specification includes castings with microstructures of spheroidal graphite (SG) SiMo iron, compacted graphite (CG) SiMo iron, and mixed graphite or medium-nodularity graphite (MG) SiMo iron. MG iron microstructure comprises a mixture of spheroidal and compacted graphite shapes. This standard specifies the condition, chemical composition, microstructure, and other technical requirements of three grades of ferritic cast irons, specified as SG SiMo, MG SiMo, and CG SiMo.

    1.2 No precise quantitative relationship can be stated between the properties of iron in the various locations of the same casting or between the properties of castings and those of a test specimen cast from the same iron.

    1.3 The values stated in SI units are to be regarded as standard. All chemical compositions are in mass percentage. No other units of measurement are included in this standard.

    1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

    1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    A247 Test Method for Evaluating the Microstructure of Graphite in Iron Castings

    A395/A395M Specification for Ferritic Ductile Iron Pressure-Retaining Castings for Use at Elevated Temperatures

    A476/A476M Specification for Ductile Iron Castings for Paper Mill Dryer Rolls

    A536 Specification for Ductile Iron Castings

    A834 Specification for Common Requirements for Iron Castings for General Industrial Use

    A842 Specification for Compacted Graphite Iron Castings

    A897/A897M Specification for Austempered Ductile Iron Castings

    D1976 Test Method for Elements in Water by Inductively-Coupled Plasma Atomic Emission Spectroscopy

    D5381 Guide for X-Ray Fluorescence (XRF) Spectroscopy of Pigments and Extenders

    E8/E8M Test Methods for Tension Testing of Metallic Materials

    E10 Test Method for Brinell Hardness of Metallic Materials

    E21 Test Methods for Elevated Temperature Tension Tests of Metallic Materials

    E228 Test Method for Linear Thermal Expansion of Solid Materials With a Push-Rod Dilatometer

    E351 Test Methods for Chemical Analysis of Cast IronAll Types

    E1184 Practice for Determination of Elements by Graphite Furnace Atomic Absorption Spectrometry

    E1999 Test Method for Analysis of Cast Iron by Spark Atomic Emission Spectrometry

    SAE (Society of Automotive Engineers) International Standards

    J434 Automotive Ductile (Nodular) Iron Castings

    J1887 Automotive Compacted Graphite Iron Castings

    American National Standard

    MIL-STD-129 Military Marking for Shipment and Storage

    Federal Standard


    ICS Code

    ICS Number Code 77.080.10 (Irons)

    UNSPSC Code

    UNSPSC Code 31100000(Castings and casting assemblies)

    Referencing This Standard
    Link Here
    Link to Active (This link will always route to the current Active version of the standard.)

    DOI: 10.1520/A1095-15R19

    Citation Format

    ASTM A1095-15(2019), Standard Specification for High-Silicon Molybdenum Ferritic Iron Castings, ASTM International, West Conshohocken, PA, 2019, www.astm.org

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