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NIBRON® 2.1504 Copper‑Nickel Alloy: Ultra‑Strong & Corrosion‑Resistant

2.1504 (CuNi14Al3) is an extra high strength copper nickel alloy developed by Columbia Metals that maximises both strength and corrosion resistance. Sometimes referred to as a nickel bronze, NIBRON® contains additions of aluminium, iron and manganese that join with the copper and nickel to achieve its exceptional properties. Although suited primarily to the tough extremes of marine or offshore oil and gas environments, Nibron® has also established itself for critical components in many other industrial sectors including aerospace, electrical, chemical and automotive. It shows the following features and properties:


  • Very high mechanical properties
  • Excellent wear and galling resistance
  • High ductility
  • Outstanding resistance to marine corrosion and erosion
  • Retention of properties at cryogenic temperatures
  • Exceptionally low magnetic permeability
  • Good machinability and dimensional stability
  • Good thermal conductivity

    • Properties

    General

    PropertyTemperatureValue

    Density

    23.0 °C

    8.5 g/cm³

    Mechanical

    PropertyTemperatureValue

    Elastic modulus

    23.0 °C

    141 GPa

    Elongation

    23.0 °C

    12 %

    Hardness, Brinell

    23.0 °C

    229 - 240 [-]

    Tensile strength

    23.0 °C

    770 - 850 MPa

    Yield strength Rp0.2

    23.0 °C

    555 - 630 MPa

    Thermal

    PropertyTemperatureValueComment

    Coefficient of thermal expansion

    23.0 °C

    1.64E-5 1/K

    for 0-400°C

    Melting point

    1080 - 1100 °C

    Thermal conductivity

    23.0 °C

    44 - 46 W/(m·K)

    Electrical

    PropertyTemperatureValue

    Electrical resistivity

    23.0 °C

    1.7E-7 Ω·m

    Magnetic

    PropertyTemperatureValueComment

    Relative magnetic permeability

    23.0 °C

    1 [-]

    max.

    Chemical properties

    PropertyValue

    Aluminium

    3 %

    Copper

    Balance

    Iron

    1.5 %

    Manganese

    0.3 %

    Nickel

    14.5 %

    Technological properties

    Property
    Application areas

    Offshore & marine: Marine shafts and bearing bushes, offshore bolting, valve and pump trim;Aerospace: Aircraft landing gear bushes, actuating sleeves, steering gear, bearing bushes, non-magnetic bolts and control surface components;Automotive: High performance engine shafts, gears, pinions, bearing bushes, locking nuts, mechanical and electromechanical components, thrust washers and hydraulic equipment;Chemical processing: Pump and valve spindles and other trim, flanges, pipe fittings, clamps and plant components

    Corrosion properties

    Excellent corrosion resistance

    General machinability

    Good machinability


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