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Precipitation hardening stainless steel

Osprey® 17-4 PH

Osprey® 17-4 PH is a precipitation hardening stainless steel with good resistance to general corrosion and well-defined heat treatment for high strength and hardness.

UNS
S17400
ASTM, AISI
630
EN Name
X5CrNiCuNb16-4
EN Number
1.4548
DIN
X5CrNiCuNb16-4

Powder designed for

  • Additive Manufacturing (AM)
  • Metal Injection Moulding (MIM)
  • Micro-MIM

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 18, 2023 9:43 AM CET (supersedes all previous editions)

Download datasheet PDF

  • Chemical composition (nominal), %
    Fe
    Bal.
    C
    ≤0.07
    Cr
    15.5-17.5
    Si
    1.0
    Mn
    ≤1.0
    S
    ≤0.04
    P
    ≤0.03
    Cu
    3.0-5.0
    Nb
    0.15-0.45
    Mo
    ≤0.3
    Ni
    3.0-5.0

  • 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 Metal Injection Moulding (MIM)

    Osprey® MIM powder has a spherical morphology, resulting in high packing density. This enables the manufacture of feedstocks with high powder loading, which not only minimizes binder costs but also reduces part shrinkage during debinding and sintering. Spherical powder also has excellent flow characteristics, resulting in reduced tool wear and consistent mould filling.

    Osprey® MIM powder's low oxygen content allows better control of carbon and consistency during sintering. Low oxygen levels, together with high packing density, also facilitate faster sintering.

    Powder for Micro-MIM

    Osprey® Micro-MIM powder has a spherical morphology, resulting in high packing density. This enables the manufacture of feedstocks with high powder loading, which not only minimizes binder costs but also reduces part shrinkage during debinding and sintering. Spherical powder also has excellent flow characteristics, resulting in reduced tool wear and consistent mould filling.

    Osprey® Micro-MIM powders' low oxygen content allows better control of carbon and consistency during sintering. Low oxygen, together with high packing density, also facilitates faster sintering

  • 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 Metal Injection Moulding (MIM)

    Osprey® metal powder for Metal Injection Moulding (MIM) is available in a wide range of particle size distributions, from under 5 μm up to 38 μm. The table shows our standard particle size distributions for MIM powders.

    Typical particle size distributions for Metal Injection Moulding (MIM)*
    Size (μm) D10 (μm) D50 (μm) D90 (μm)
    ≤ 38 5.5 13.0 31.0
    ≤ 32 5.0 12.0 29.0
    80% ≤ 22 4.5 11.5 27.0
    90% ≤ 22 4.0 10.5 22.0
    90% ≤ 16 3.5 8.0 16.0

    *Particle size measurements performed using a Malvern laser particle size analyzer, typical D10, D50 and D90 provided.

    Powder for Micro-MIM

    Osprey® metal powder for Micro-Metal Injection Moulding (Micro-MIM) has the following typical particle size distributions:

    Typical particle size distribution (μm)*
      D10 (%) D50 (%) D90 (%)
    90% – 10 μm 3.0 5.7 9.8
    80% – 5 μm 1.9 3.4 6.0

    *Particle size measurements performed using a Malvern laser particle size analyzer.

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

  • Mechanical properties

    Typical mechanical properties of material produced by Laser - Powder Bed Fusion (L-PBF) in as-built and heat-treated conditions evaluated in room temperature, as measured in independent research. Heat treatment: H900 aolution annealed (1,051°C/1,924°F for 1h in hydrogen) and aged (482°C/900°F for 1h in nitrogen).

    Mechanical properties, metric units
    Condition Yield strength (Rp0.2), MPa Tensile strength (Rm), MPa Elongation (A), % Hardness, HV (HRC)* Density, g/cc Density, %
    As built 860 905 20 230 (22) 7.7 99
    Heat treated 1,116 1,358 5.1 450 (45) 7.7 99
    Mechanical properties, imperial units
    Condition Yield strength (Rp0.2), ksi Tensile strength (Rm), ksi Elongation (A), % Hardness, HRC* Density, lb/in3 Density, %
    As built 125 131 20 230 (22) 0.28 99
    Heat treated 162 197 5.1 450 (45) 0.28 99

    *Typical Vicker’s Hardness levels (ASTM E92, ISO 6507-1, JIS Z2244, GB/T 4340.1) as well as HRC values (ASTM E18, ISO 6508-1, JIS Z2245, GB/T 230) in the Laser - Powder Bed Fusion (L-PBF) as-built and heat-treated conditions.

  • Physical properties

    Wrought material, typical values

    Density 7.8 g/cm3
    (0.28 lb/in3)
    Thermal conductivity
    (H900 heat treatment tested at 149°C/ 300°F)    		 17.9 W/mK
    Coefficient of thermal expansion* 10.8 μm/m°K
    Melting range 1,404–1,440°C
    (2,559–2,624°F)

  • Typical application areas

    Osprey® 17-4PH is used in a wide range of industries, such as medical, aerospace, chemical, oil/gas and general engineering. Application include:

    • Surgical and dental instruments
    • Aerospaceturbine blades and structures
    • Valves and engine components
    • Gears and shafts

  • 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.

Osprey® Online

Buy Osprey® 17-4 PH for additive manufacturing from our online store, available directly from stock.

Range of precipitation hardening stainless steel

Osprey® Standards* Fe C Cr Si Mn S P Cu Nb Mo Al Ni
15-5 PH UNS S1550 Bal. 0.07 14.0-15.5 1.0 1.0 0.04 0.03 2.5-4.5 0.15-0.45 - - 3.5-5.5 15-5 PH
17-4 PH UNS S17400 Bal. ≤0.07 15.5-17.5 1.0 ≤1.0 ≤0.04 ≤0.03 3.0-5.0 0.15-0.45 ≤0.3 - 3.0-5.0
17-7 PH UNS S17700 Bal. 0.09 16.0-18.0 1.0 1.0 0.04 0.04 - - - 0.75-1.50 6.5-7.75 17-7 PH
PH13-8Mo UNS S13800 Bal. ≤0.5 12.25-13.25 ≤0.1 ≤0.1 ≤0.008 ≤0.01 - - 2.0-2.5 0.90-1.35 7.5-8.5 PH13-8Mo

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

For more information

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