8MnSi Special Alloy

Chemical composition%of the ladle analysis of grade8MnSi

C(%)Si(%)Mn(%)P(%)S(%)Cr(%)Ni(%)V(%)Cu(%)
0.75~0.850.30~0.600.80~1.10≤0.030≤0.030≤0.25≤0.20≤0.20≤0.30
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  • Mechanical properties of grade8MnSi

    Proof strength
    Rp0.2(MPa)
    Tensile strength
    Rm(MPa)
    Impact energy
    KV(J)
    Elongation at fracture
    A(%)
    Reduction in cross section on fracture
    Z(%)
    As-Heat-Treated Condition Brinell hardness(HBW)
    927(≥) 535(≥) 13 42 42 Solution and Aging,Annealing,Ausaging,Q+T,etc 233

    Physical properties of grade 8MnSi

    Property Density
    kg/dm3
    Temperature T
    °C/F
    Specific heat
    J/kgK
    Thermal conductivity
    W/mK
    Electric resistance
    µΩ·cm
    Modulus of elasticity
    kN/mm2
    Expansion rate
    833(≥) 934(≥) 42 32 34 Solution and Aging,Annealing,Ausaging,Q+T,etc 131
    Temp.
    °C/°F
    Creep strain limit
    (10000h)
    (Rp1,0)N/mm2
    Creep rupture strength
    (10000h)
    (Rp1,0)N/mm2
    722 798 289

    8MnSi Range of products

    Product type Products Dimension Processes Deliver Status
    Plates/Sheets Plates/Sheets 0.08-200mm(T)*W*L Forging,hot rolling and cold rolling Annealed,Solution and Aging,Q+T,ACID-WASHED,Shot Blasting
    Steel Bar Round Bar,Flat Bar,Square Bar Φ8-1200mm*L Forging,hot rolling and cold rolling,Cast Black,Rough Turning,Shot Blasting,
    Coil/Strip Steel Coil/Steel Strip 0.03-16.0x1200mm Cold-Rolled&Hot-Rolled Annealed,Solution and Aging,Q+T,ACID-WASHED,Shot Blasting
    Pipes/Tubes Seamless Pipes/Tubes,Welded Pipes/Tubes OD:6-219mm x WT:0.5-20.0mm Hot extrusion,Cold Drawn,Welded Annealed,Solution and Aging,Q+T,ACID-WASHED

    Equivalent Grade