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    AISI/SAE 4340 Round Bar

    AISI/SAE 4340 Round Bar

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    • Grade4340
    • TechniqueAISI/SAE 4140 alloy steel Hot Rolled, Cold Drawn, Cold Rolled, Forged Round Bar, Rod
    • SpecificationAlloy Steel 4340 Bar
    • ToleranceH8, H9, H10, H11, H12, H13K9, K10, K11, K12 or as per clients’ requirements
    • Supply TypeManufacturer, Exporter, Supplier, Retailer
    • Preferred Buyer Location India only
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    Company Information

    NEPTUNE ALLOYSverified-icon
    location Girgaon, Mumbai, Maharashtra
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    • calendar Member Since 5 Years
    • building Nature of Business Trader

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    • Grade4340
    • TechniqueAISI/SAE 4140 alloy steel Hot Rolled, Cold Drawn, Cold Rolled, Forged Round Bar, Rod
    • SpecificationAlloy Steel 4340 Bar
    • Diameter3-~800mm
    • ConditionHardened & tempered, annealed
    • ToleranceH8, H9, H10, H11, H12, H13K9, K10, K11, K12 or as per clients’ requirements
    • thickness3.0 to 12.0mm
    • SurfaceBright, Hot Rolled Pickled, Cold Drawn, Sand Blasting Finished, Polished, Hairline

    AISI/SAE 4340 Round Bar/Rods Equivalent Grades
    StandardAISI / SAE 4340
    UNS-
    WERKSTOFF NR.34CrNiMo6, 40NiCrMo8-4
    BS 970817M40, En24
    UNI35NiCrMo6 (KB), 40NiCrMo7 (KB)
    JISSNCM 447, SNB24-1-5
    EN name34CrNiMo6
    EN #1.6582, 1.6562
    AISI/SAE 4340 Round Bar Chemical Composition
     CMnSiSPCrNiMo
    SAE - 4340.38- .43.60 - .80.15 - .35.035 MAX.040 MAX.70 - .901.65 -2.00.20 - .30
    AISI/SAE 4340 Bar Mechanical Properties
    Tensile strength kgf/mm²Yield strength kgf/mm²Elongation %Cross section reduction rate %Impact valueHardness Hb
    ≧100≧90≧16≧45≧7293~352
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