Brass Alloy C67300

  • Brass Alloy C67300
  • General Characteristics

    C67300 is a high-strength leaded silicon manganese bronze with typically good bearing qualities. This alloy maintains high impact resistance with excellent machinability making it well suited for clutch bearings, shaft bushings, sleeve bearings, thrust bearings, pump parts, drive shafts, bearing pins, wear plates, gears and cams. This brass resists squashing under high loads and extreme wear applications.

  • Typical Chemical Composition

    Weight % Cu Al Fe Pb Mn Ni Si Sn Zn
    Minimum 58.00 0.40 2.00 0.50 Bal
    Maximum 63.00 0.25 0.50 3.00 3.50 0.25 1.50 0.30
  • Physical Properties

    Characteristics English Metric
    Nominal density 20°C   /   68°F 0.293 lbs/in3 8.11 g/cm3
    Melting point – liquidus 1605 °F 874 °C
    Specific heat 20°C   /   68°F 0.0908 BTU/lb – °F 380 J/KG- °K
    Thermal conductivity 20°C   /   68°F 45.8 BTU/ft-hr-°F 79.3 W/m- °K
    Average coefficient of

    thermal expansion

    From 20°C (68°F) to

    temperature,

    200°C / 392°F 10.6 micro in/in- °F 19.0 micro m/m- °K
    Electrical  resistivity 20°C   /   68°F 66.3 nW × m
  • Mechanical Properties

    Temper Tensile Hardness
    H02- ½ hard temper Ultimate Yield Elongation

    2 in. or 50mm

    HRB
    Size KSI MPa KSI MPa %
    Up to 25.4 mm

    (1 in.) inclusive

    65 448 40 276 12 70-100
    25.4-76.2 mm

    (1-3 in.) inclusive

    35 241 58 400 15 70-100
  • Specifications

    • SAE – J461, J463

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