Jump to content
Metal powder | Sandvik

Master alloys

Osprey® 304L/MA

Osprey® 304L/MA is a master alloy, designed for blending with carbonyl iron powder, for Metal Injection Moulding (MIM). It creates standard 304L stainless steel after sintering.

Powder designed for

  • Metal Injection Moulding (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 14, 2023 1:48 PM CET (supersedes all previous editions)

Download datasheet PDF

  • Chemical composition (nominal), %
    Blend ratio
    MA 1, Carbonyl Fe 2
    Fe
    6.5
    C
    ≤0.08
    Cr
    Bal.
    Ni
    30.0
    Si
    ≤3.0
    Mn
    3.5

  • Powder characteristics and morphology

    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.

  • Particle size distribution

    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.

    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 master alloys

Osprey® Standards* Blend ratio Fe C Cr Ni Mo Si Mn W V Cu Nb
17-4 PH/MA - MA 1, Carbonyl Fe 2 Bal. ≤0.07 50.0 13.0 - ≤2.0 ≤2.0 - - 12.0 0.7 17-4 PH/MA
304L/MA - MA 1, Carbonyl Fe 2 6.5 ≤0.08 Bal. 30.0 - ≤3.0 3.5 - - - -
316L/MA - MA 1, Carbonyl Fe 2 - ≤0.08 Bal. 38.0 7.2 ≤1.0 ≤0.5 - - - - 316L/MA
4140/MA - MA 1, Carbonyl Fe 2 Bal. 1.2 3.0 - 0.6 2.6 2.6 - - - - 4140/MA
420/MA - MA 1, Carbonyl Fe 3 Bal. <1.5 50.0 - - ≤4.0 ≤4.0 - - - - 420/MA
4340/MA - MA 1, Carbonyl Fe 2 Bal. 1.2 2.4 4.7 0.75 0.75 1.8 - - - - 4340/MA
4605/MA - MA 1, Carbonyl Fe 2 Bal. 1.5 - 6.0 1.0 ≤1.0 - - - - - 4605/MA
8620/MA - MA 1, Carbonyl Fe 2 Bal. 0.6 1.6 1.6 0.6 0.9 2.4 - - - - 8620/MA
M2/MA - MA 1, Carbonyl Fe 2 Bal. 3.0 13.0 - 15.0 0.8 0.8 18.5 6.0 - - M2/MA

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

For more information

Get in touch with our experts in metal powder today

We would like your consent

Sandvik and our vendors use cookies (and similar technologies) to collect and process personal data (such as device identifiers, IP addresses, and website interactions) for essential site functions, analyzing site performance, personalizing content, and delivering targeted ads. Some cookies are necessary and can’t be turned off, while others are used only if you consent. The consent-based cookies help us support Sandvik and individualize your website experience. You may accept or reject all such cookies by clicking the appropriate button below. You can also consent to cookies based on their purposes via the manage cookies link below. Visit our cookie privacy policy for more details on how we use cookies.