Mat.No. 1.6511, DIN 36CrNiMo4, AISI 9840

Mat.No. 1.6511, DIN 36CrNiMo4, AISI 9840

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DIN 1.6511 / 36CrNiMo4 Steel is a Nickel-Molybdenum alloy engineering steel accding to DIN Standard. 36CrNiMo4 is one kind of high strength steel which also has good comprehensive mechanical properties. This steel is known for its toughness and capability of developing high strength in the heat treated condition while retaining good fatigue strength. Chemical Composition C: 0.32-0.40; Si: max0.40; Mn: 0.50-0.80; P: max0.035; S: max0.035; Cr: 0.90-1.20; Ni: 0.90-1.20; Mo: 0.15-0.30; Equivalent...


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    DIN 1.6511 / 36CrNiMo4 Steel is a Nickel-Molybdenum alloy engineering steel accding to DIN Standard. 36CrNiMo4 is one kind of high strength steel which also has good comprehensive mechanical properties. This steel is known for its toughness and capability of developing high strength in the heat treated condition while retaining good fatigue strength.

    Composición química
    C: 0.32-0.40; Si: max0.40; Mn: 0.50-0.80; P: max0.035; S: max0.035;
    Cr: 0.90-1.20; Ni: 0.90-1.20; Mo: 0.15-0.30;

    Equivalent Grades
    AISI/ASTM: 9840
    BS: 817A37 / 817M37
    JIS: SNCM439

    Form of 1.6511
    Round / Square / Flat / Hollow Bars, Shafts, Rollers, Blocks

    Size of 36CrNiMo4
    – As Forged
    Round bar
    Size: Dia.80-1,000mm
    Length: 3,000-10,000mm
    Square bar
    Size: 150×150-600×600mm
    Length: 3,000-8,000mm
    (Forged Flat Bars, Shafts, Rollers and Blocks can be Customized)
    – As Rolled
    Round Bar
    Size: Dia.10-300mm
    Length: 3,000-10,000mm(can be Customized)

    Surface Condition of 1.6511 Steel
    Black, Rough Machined, Turned

    Hardness of 36CrNiMo4 Steel
    Annealed (+A): max 241HB

    Mechanical Properties of 1.6511 / 36CrNiMo4 Steel
    Tensile strength: 1000MPa
    Yield point: 800MPa
    Percentage reduction of area after fracture: 45%
    Elongation after fracture: 11%
    Impact test – longitud: 35-45J(20°C)

    Quenched and Tempered (+QT) of DIN 36CrNiMo4 Steel
    1. Heat 1.6511 steel slowly to the temperature of 860°C;
    2. Soak at this hardening temperature and quench in oil;
    3. Temper as soon as 36CrNiMo4 steel reach room temperature.
    4. Heat uniformly to the suitable temperature;
    5. Withdraw from the furnace and cool in the air.
    6. The usual tempering temperature is 200°C which also depending on the actual requirements.

    Applications of W-Nr 1.6511 Steel
    DIN 36CrNiMo4 alloy steel is widely used in permanently stressed components with large cross sections for automotive and mechanical engineering. This material is also good for economic performance under severe dynamic stress and parts must be designed for optimum strength or toughness.

    Enquiry for DIN 1.6511 / 36CrNiMo4 Alloy Steel Round / Square / Flat Bars, Shafts, Rollers, Blocks.

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