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Duplex stainless steels

Osprey® 2707

Osprey® 2707 is a hyper-duplex stainless steel with excellent resistance to SCC, pitting and crevice corrosion. It has high resistance to general corrosion and very high mechanical strength.

UNS
S32707
EN Number
1.4658

Powder designed for

  • Additive Manufacturing (AM)
  • Hot Isostatic Pressing (HIP)

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

Technical data

Page updated Sep 8, 2023 1:17 PM CET (supersedes all previous editions)

Download datasheet PDF

  • Chemical composition (nominal), %

    Fe
    Bal.
    Cr
    27
    Ni
    6.5
    Mo
    4.8
    C
    ≤0.030
    Si
    ≤0.5
    Mn
    ≤1.5
    P
    ≤0.035
    S
    ≤0.010
    N
    0.4
    Other
    Co 1.0
  • 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.

    Powder for Hot Isostatic Pressing (HIP)

    Osprey® HIP powder has a spherical morphology, resulting in high packing density. In addition, the powder has a low oxygen content and low impurity levels, resulting in a metallurgically clean product with enhanced mechanical performance.

  • 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.

    Typical particle size distributions for Additive Manufacturing.

    Typical particle size distributions for Additive Manufacturing
    Process technology Size (µm)
    Binder jetting ≤ 16, ≤ 22, ≤ 32, ≤ 38, ≤ 45
    Laser - Powder Bed Fusion (L-PBF) 15 to 53 and 10 to 45
    Electron beam - Powder Bed Fusion (E-PBF) 45 to 106
    Direct Energy Deposition (DED) 53 to 150

    Powder for Hot Isostatic Pressing (HIP)

    Osprey® powder for Hot Isostatic Pressing (HIP) is available in a broad size range, typically <250 microns, resulting in a high packing density and tap density. Low oxygen levels, together with high packing density, also facilitate faster sintering.

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

  • 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 duplex stainless steel

Osprey® Standards* Fe Cr Ni Mo C Si Mn P S N Other
2707 UNS S32707 Bal. 27 6.5 4.8 ≤0.030 ≤0.5 ≤1.5 ≤0.035 ≤0.010 0.4 Co 1.0
2205 UNS S32205 / S32205 Bal. 22 5 3.2 ≤0.030 ≤1.0 ≤2.0 ≤0.030 ≤0.015 0.18 - 2205
1.4091 EN Number 1.4091 Bal. 32-38 11-16 2.0-4.0 1.0- 1.5 ≤1.0 ≤1.0 ≤0.035 ≤0.035 0.10-0.40 W 0.5-2.0 1.4091
3207 UNS S33207 Bal. 32 7 3.5 ≤0.030 ≤0.8 ≤1.5 ≤0.035 ≤0.010 0.5 - 3207
2507 UNS S32750 Bal. 25 7 4 ≤0.030 ≤0.8 ≤1.2 ≤0.025 ≤0.015 0.3 Cu 0.5 2507

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

For more information

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