Mechanical ISO 4957 Grade 40CrMnMoS8-6 Cold Tool Steel Bar

Brand Name:UST
Certification:ISO
Model Number:ISO 4957 Grade 40CrMnMoS8-6
Minimum Order Quantity:MOQ1-2TONS
Delivery Time:Within 5-8 weeks
Payment Terms:L/C, T/T
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Location: Shanghai Shanghai China
Address: Room 1109, Loft Office, Green Land International Plaza, No. 275-8 Guoding East Road, Shanghai 200433, P.R. China. (admin(a)shunitesteel.com)
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ISO 4957 Grade 40CrMnMoS8-6


TYPICAL APPLICATIONS
Alloy tool steel is widely used to produce the cutting tool, cold/heat distortion mould and measuring implements,
and further to manufacture the piston, valve, valve seat of fuel pump of diesel engine.
Cutting tools
Mechanical parts
Air hammer tools
Piercing tools
    PRODUCT DESCRIPTION
    The alloy is usually produced by EAF /VD /LF followed by electroslag refining (ESR) if necessary for special purpose.
    Bars and, where applicable, forgings are subjected to ultrasonic examination based on the different level according to the buyers' requirements.
    Bars are usually supplied bright in the softened condition.
    Final heat treatment - heat treatment / QT
    MATERIAL SPECIFICATIONS
    EN ISO 4957: 2000 , DIN 17350 (1980)
    AVAILABLE SHAPES
    Black bar /Flat bar /Square bar
    Bright - peeled + polishing /centerless grinding / peeled + slidabrading
    Forged - ring /tube /pipe casing /discs /shaft

    Chemical composition(mass fraction)(wt.%)

    ElementsMin.(≥)Max.(≤)
    C0.350.45
    Si0.300.50
    Mn1.401.60
    P0.030
    S0.050.10
    Cr1.802.00
    Mo0.150.25
    V

    Mechanical Properties

    Tensile strength206~844σb/MPa
    Yield Strength398σ 0.2 ≥/MPa
    Elongation94δ5≥(%)
    ψ-ψ≥(%)
    Akv-Akv≥/J
    HBS558~382-
    HRC30-
    Physical Properties
    Thermal expansion86-93e-6/K
    Thermal conductivity28-75W/m.K
    Specific heat450-460J/kg.K
    Melting temperature6414-0429째C
    Density9843-3299kg/m3
    Resistivity0.50-0.60Ohm.mm2/m
    Heat Treatment Regime

    Annealing

    Quenching

    Tempering

    Normalizing

    Q & T

    INVENTORY - hot rolled bar
    Diameter: 12mm, 30
    mm, 44mm, 25mm
    Quantity: 458kg
    PRODUCT PROFILE
    Round bar / Wire rod (Diameter): 0.50mm to 3000mm
    Square bar / Flat bar: 3mm to 2000mm
    Plate / Sheet steel / Steel strip: 0.1mm to 2500mm
    Width: 8mm to 2500mm
    Length: random length or based on the customer's special requirement.
    Forged steel shape: stepped shafts with flanks / discs /tubes /slugs /donuts /cubes /other different shapes based on OEM.
    Pipes / Tubings: OD 3-219 mm, with wall thickness ranging from 0.50 to 35 mm.


      China Mechanical ISO 4957 Grade 40CrMnMoS8-6 Cold Tool Steel Bar supplier

      Mechanical ISO 4957 Grade 40CrMnMoS8-6 Cold Tool Steel Bar

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