Data sheet

    Wieland-SB7

    Wieland-SB7 is a nickel-containing special brass with hard, wear resistant manganese silicides. It has been specially developed for the function of the freely running slipper shoe. Its high 0.2% proof stress makes it particularly ductile and allows it to be easily bent around the joint of the steel piston. Wieland-SB7 can also be used for other antifriction elements.

    Composition (standard values)

    Cu    57 %
    Mn   2.2 %
    Ni     2.0 %
    Si      1.1 %
    Pb    0.7 %
    Zn    balance

     

    Material designation

    Wieland              SB7
    DIN/ISO/EN       not standardized

     

    Max. load

    Suitable for operating pressure of min. 450 bar

     

    Types available

    Machined slipper shoes

     

    Dimensions of the tubes and rods for machined bushings and slipper shoes

    Please enquire.

    Density [g/cm3]8.3
    Coefficient of thermal expansion (20 - 300 °C) [10-6/K]20.5
    Thermal conductivity [W/m*K]85
    Modulus of elasticity (20 °C) [GPa]100
    Temper 
    Hardness [HB/HRB]150 (HRB 83)
    Tensile strength Rm [MPa]530
    0.2 %-proof stress Rp0.2 [MPa]350
    Elongation A5 [%]10

     

    1 MPa = 1 N/mm2

    Steffen Schimanek
    Head of Sales – Slide Bearings