Expansion alloys
Osprey® Alloy 36
Osprey® Alloy 36 is an expansion alloy with a low coefficient of thermal expansion. It is typically used in aerospace components, radio-electronic, optical and laser systems.
- UNS
- K93600
- ASTM, AISI
- F1684
- EN Number
- 1.3912
- W. Nr.
- 1.3912
Powder designed for
- Additive Manufacturing (AM)
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.
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Product description
Osprey® Alloy 36 is an expansion alloy with a low coefficient of thermal expansion. It is typically used in aerospace components, radio-electronic, optical and laser systems. Osprey® Alloy 36 is an alloy of the same type as Invar® 36*.
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. In addition, the powder has a low oxygen content and low impurity levels, resulting in a metallurgically clean product with enhanced mechanical performance.
*Invar® is a trademark owned by Aperam Alloys Imphy.
Technical data
Page updated Sep 8, 2023 9:02 AM CET (supersedes all previous editions)
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Chemical composition (nominal), %
- Fe
- Bal.
- Ni
- 35-37
- C
- 0.02
- Mn
- 0.5
- Si
- 0.25
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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.
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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 Tailor-made particle size distributions are available on request. Contact us to discuss your specific requirements.
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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.
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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 expansion alloys
| Osprey® | Standards* | Fe | Cr | Ni | Co | C | Mn | Si | Al | |
|---|---|---|---|---|---|---|---|---|---|---|
| Alloy 36 | UNS K93600 | Bal. | - | 35-37 | - | 0.02 | 0.5 | 0.25 | - | |
| Fe29Ni17Co | UNS K94610 / ASTM F15 | Bal. | 0.2 | 28.5-29.5 | 16.5-17.5 | 0.02 | 0.5 | 0.2 | 0.01 |
Fe29Ni17Co
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* Information about more standards is available in the datasheet for the respective alloy.
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