ASTM A370-97a

    Standard Test Methods and Definitions for Mechanical Testing of Steel Products

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    1. Scope

    1.1 These test methods cover procedures and definitions for the mechanical testing of wrought and cast steels, stainless steels, and related alloys. The various mechanical tests herein described are used to determine properties required in the product specifications. Variations in testing methods are to be avoided, and standard methods of testing are to be followed to obtain reproducible and comparable results. In those cases in which the testing requirements for certain products are unique or at variance with these general procedures, the product specification testing requirements shall control.

    1.2 The following mechanical tests are described:

    Tension 5 to 13
    Impact19 to 28

    1.3 Annexes covering details peculiar to certain products are appended to these test methods as follows:

    Bar ProductsA1.1
    Tubular ProductsAnnex A2
    FastenersAnnex A3
    Round Wire ProductsAnnex A4
    Significance of Notched-Bar Impact TestingAnnex A5
    Converting Percentage Elongation of Round Specimens to Equivalents for Flat SpecimensAnnex A6
    Testing Multi-Wire StrandAnnex A7
    Rounding of Test DataAnnex A8
    Methods for Testing Steel Reinforcing BarsAnnex A9
    Procedure for Use and Control of Heat-Cycle SimulationAnnex A10

    1.4 The values stated in inch-pound units are to be regarded as the standard.

    1.5 When this document is referenced in a metric product specification, the yield and tensile values may be determined in inch-pound (ksi) units then converted into SI (MPa) units. The elongation determined in inch-pound gage lengths of 2 or 8 in. may be reported in SI unit gage lengths of 50 or 200 mm, respectively, as applicable. Conversely, when this document is referenced in an inch-pound product specification, the yield and tensile values may be determined in SI units then converted into inch-pound units. The elongation determined in SI unit gage lengths of 50 or 200 mm may be reported in inch-pound gage lengths of 2 or 8 in., respectively, as applicable.

    1.6 Attention is directed to Practices A 880 and E 1595 when there may be a need for information on criteria for evaluation of testing laboratories.

    1.7 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 and health practices and determine the applicability of regulatory limitations prior to use.

    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

    A623 Specification for Tin Mill Products, General Requirements

    A623M Specification for Tin Mill Products, General Requirements [Metric]

    A703/A703M Specification for Steel Castings, General Requirements, for Pressure-Containing Parts

    A781/A781M Specification for Castings, Steel and Alloy, Common Requirements, for General Industrial Use

    A833 Practice for Indentation Hardness of Metallic Materials by Comparison Hardness Testers

    E4 Practices for Force Verification of Testing Machines

    E6 Terminology Relating to Methods of Mechanical Testing

    E8/E8M Test Methods for Tension Testing of Metallic Materials

    E10 Test Method for Brinell Hardness of Metallic Materials

    E18 Test Methods for Rockwell Hardness of Metallic Materials

    E23 Test Methods for Notched Bar Impact Testing of Metallic Materials

    E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications

    E83 Practice for Verification and Classification of Extensometer Systems

    E110 Test Method for Indentation Hardness of Metallic Materials by Portable Hardness Testers

    E190 Test Method for Guided Bend Test for Ductility of Welds

    E290 Test Methods for Bend Testing of Material for Ductility

    ASME Document


    ISO Standard

    ISO/IEC17025 General Requirements for the Competence of Testing and Calibration Laboratories

    ICS Code

    ICS Number Code 77.040.10 (Mechanical testing of metals); 77.140.01 (Iron and steel products in general)

    UNSPSC Code

    UNSPSC Code 41114500(Mechanical instruments); 81141506(Product testing)

    DOI: 10.1520/A0370-97A

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