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    AISI 4340 Steel Bars

    AISI 4340 Steel Bars
    AISI 4340 Steel Bars
    Product Code : 14
    Product Description

    We are a renowned supplier of AISI 4340 Alloy Steel Bar, which is heat treatable and low alloy steel, used in industries for various purpose. It has high strength and toughness in the heat treated condition.

    Chemical Composition :-

    • Iron : 95.195 to 96.33%
    • Chromium : 0.700 to 0.900%
    • Nickel : 1.65 to 2.00%
    • Manganese : 0.600 to 0.800%
    • Molybdenum : 0.200 to 0.300%
    • Carbon : 0.370 to 0.430%
    • Silicon : 0.150 to 0.300%
    • Phosphorous : 0.0350%
    • Sulfur : 0.0400%

    Properties :-

    • Melting Point : 1427°C
    • Density : 7.85 g/cm cube
    • Tensile strength : 745 MPa
    • Yield strength : 470 MPa
    • Shear modulus : 80 GPa
    • Bulk modulus : 140 GPa
    • Elastic modulus : 190 to 210 GPa
    • Poisson's ratio : 0.27 to 0.30
    • Reduction of area : 50%
    • Elongation at break : 22%
    • Thermal Expension : 12.3 um/m°C
    • Thermal conductivity : 44.5 W/mK

    Applications :-

    Mainly used in powere transmission shafts and gears, aircraft landing gear etc


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