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Copper alloys

Osprey® GRCop-42

Osprey® GRCop-42 is a high-conductivity, high-strength, dispersion-strengthened copper alloy, designed to withstand service temperatures above 500°C.

  • Additive Manufacturing (AM)

This metal powder is manufactured by induction melting under Vacuum Inert Gas Atomization (VIGA), producing a powder with a spherical morphology which provides good flow characteristics and high packing density.

Technical data

Page updated Mar 4, 2024 10:01 AM CET (supersedes all previous editions)

Download datasheet PDF

  • Chemical composition (nominal), %

    3.1-3.4 *
    • * Cr/Nb ratio: 1.13 – 1.18

  • Powder characteristics and morphology

    Powder for Additive Manufacturing

    Osprey® metal powder for Additive Manufacturing is characterized by a spherical morphology and high packing density, which confer good flow properties. For powder bed processes these are essential when applying fresh powder layers to the bed to ensure uniform and consistent part build.

    For blown powder processes, such as Direct Energy Deposition (DED), good flow ensures uniform build rates. Tight control of the particle size distribution also helps ensure good flowability. Low oxygen powders result in clean microstructures and low inclusion levels in the finished parts.

    SEM micrographs of Osprey® GRCop-42 powder morphology, as well as cross section displaying an evenly distributed laves phase (Cr2Nb) in a sub-micron size.

  • Particle size distribution

    Powder for Additive Manufacturing

    Osprey® metal powder for Additive Manufacturing is available in a wide range of particle size distributions that are tailored to the individual Additive Manufacturing systems. They can also be tailored to the particular requirements of the end application, both in terms of mechanical performance and surface finish.

    Particle size distribution for Osprey® GRCop-42 powder sized for L-PBF*

    D10 (µm) D50 (µm) D90 (µm)

    Avalanche Energy2

    20.5 31.4 47.4 36.7 ± 1 20

    *Particle size measurements performed using a Malvern laser particle size analyzer, typical D10, D50 and D90 provided. Avalanche Energy2 measured in Mercury Scientific Rotating Drum.

    Typical particle size distributions for Additive Manufacturing.

    Tailor-made particle size distributions are available on request. Contact us to discuss your specific requirements.

  • Mechanical properties

    Mechanical properties for PBF-L Osprey® GRCop-42 material, evaluated at room temperature. Samples were printed on a SLM 125 HL SMT system in a collaboration with ASTRO Test Lab & MIMO Technik. After printing, the samples were HIPed at 950°C /3h/100 MPa.

    Mechanical properties, metric units
    Condition Yield strength Tensile strength Elongation Young's modulus
    Rp0.2 Rm A E
    MPa MPa % GPa
    L-PBF 190.3 ± 3 346.8 ± 2 36.7 ± 1 78.9
    Mechanical properties, imperial units
    Condition Yield strength Tensile strength Elongation, % Young's modulus
    Rp0.2 Rm A E
    ksi ksi % Msi
    L-PBF 27.6 ± 0.4 50.3 ± 0.3 36.7 ± 1 11.4

  • Testing

    All Osprey® metal powders are supplied with a certificate of analysis containing information on the chemical composition and particle size distribution. Information on other powder characteristics is available upon request.

  • Packaging

    A wide range of packaging options is available, from 5kgs plastic bottles to 250kg metal drums.

    5 kg (11 lbs) Plastic bottles
    6 kg (13 lbs) Plastic bottles
    10 kg (22 lbs) Plastic bottles
    20 kg (44 lbs) Metal cans
    100 kg (220 lbs) Steel drums
    150 kg (330 lbs) Steel drums
    250 kg (551 lbs) Steel drums
    All packaging materials are suitable for air, sea and road freight.

    Contact us for more information and to discuss your packaging requirements.

Disclaimer: Data and recommendations are for guidance only, and the suitability of a powder for a specific process or application can be confirmed only when we know the actual conditions. Continuous development may necessitate changes in technical data without notice. This datasheet is only valid for Osprey® powder.

Range of copper alloys

Osprey® Standards Cu Fe Cr Zr Si O Ni P Mn C Pb S Nb Al
C18150 UNS C18150 Bal. ≤0.08 0.50-1.20 0.03-0.30 ≤0.1 ≤0.1 - - - - - - - - C18150
Cu30Ni UNS C96400 Bal. 0.25-1.50 - - ≤0.50 - 28.0-32.0 ≤0.02 ≤1.50 ≤0.15 ≤0.01 ≤0.02 0.50-1.50 - Cu30Ni
GRCop-42 - Bal. ≤0.025 3.1-3.4 - ≤0.035 ≤0.05 - - - - - - 2.7-3.0* ≤0.04
HC Cu UNS C10200 Bal. <0.05 - - - ≤0.1 - - - - - - - - HC Cu

* Information about more standards is available in the datasheet for the respective alloy.

For more information

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