Aluminum Bronze Alloy C63020

  • Aluminum Bronze Alloy C63020
  • General Characteristics

    This C63020, Nickel Aluminum Bronze is a martensitic, heat-treated copper alloy and the strongest in the Nickel Aluminum Bronze family. In some cases, this alloy can be a substitute for Beryllium Copper or other high nickel alloys, due to its exceptional properties. Its’ very high mechanical properties and hardness, with good ductility and toughness, make it ideal for applications involving very heavy loads, extreme abrasive wear, corrosion service, friction, deformation and high temperatures.

  • Typical Chemical Composition

    Weight % Al Fe Mn Ni + Co Sn Cu + Ag Pb Zn
    Minimum 10.00 4.00 4.20 74.5
    Maximum 11.00 5.50 1.50 6.00 0.25 91.8 0.03 0.30
  • Physical Properties

    Characteristics English Metric
    Nominal density (68°F/20°C) 0.271 lbs/in3 7.5 g/cm3
    Coefficient of thermal

    expansion

    Linear

    68°F – 392°F

    20°C – 200°C

    9.00 micro in/in- °F 16.0 micro in/in- °K
    Thermal Conductivity 68°F   /   20°C 23 BTU/ft- hr – °F 40 W/m – °K
  • Mechanical Properties

    Tensile Hardness
    Form Section size (inches) Ultimate Yield Elongation at break,

    in 2”

    Rockwell C
    KSI MPa KSI MPa %
    Rod Up to 1” 135 100 6 26
    1” to 2” 130 95 6 26
    2”-4” 130 90 6 26
    over 4” 130 90 4 26
  • Specifications

    • AMS – 4590
    • ASTM – B150

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