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Hayes Metals

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    PB4 Phosphor Bronze

    BS1400:1985

    Composition

    (maximum % unless otherwise listed)

    Cu Remainder
    Sn 9.7 min.
    Zn 0.5
    Pb 0.75
    P 0.5 min
    Ni 0.5
    S* 0.1
    T-I 0.50

    T-I Total Impurities

    Elements marked with * are specified impurities

    Typical Physical Properties

     

    Tensile Strength (MPa) 190-270
    Elongation (% min) 3-12
    0.2% Proof Stress (MPa) 100-160
    Hardness (HB) 70-95