Martensitic stainless steel
Osprey® 440C
Osprey® 440C is a martensitic stainless chromium steel with increased carbon content for very high hardness.
- UNS
- S44004
- EN Number
- 1.4125
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.
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Product description
Osprey® 440C is a martensitic stainless chromium steel with increased carbon content for very high hardness.
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.
Technical data
Page updated Sep 14, 2023 1:02 PM CET (supersedes all previous editions)
- Fe
- Bal.
- C
- 0.95-1.20
- Cr
- 16.0-18.0
- Mo
- 0.75
- Si
- 1.0
- Mn
- 1.0
- S
- 0.03
- P
- 0.04
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 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.
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.
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 martensitic stainless steel
| Osprey® | Standards* | Fe | C | Cr | Nb | Mo | Si | Mn | S | P | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 410 | UNS S41000 / EN No. 1.4006 | Bal. | 0.15 | 11.5-13.5 | - | - | 1.0 | 1.0 | 0.03 | 0.04 |
410
|
| 420 | UNS S42000 / EN No. 1.4021 | Bal. | 0.30 | 13 | - | - | ≤1.0 | ≤1.0 | ≤0.03 | ≤0.04 |
420
|
| 440B | UNS S44003 / EN No. 1.4112 | Bal. | 0.75-0.95 | 16.0-18.0 | - | 0.75 | 1.0 | 1.0 | 0.03 | 0.04 |
440B
|
| 440C | UNS S44004 / EN No. 1.4125 | Bal. | 0.95-1.20 | 16.0-18.0 | - | 0.75 | 1.0 | 1.0 | 0.03 | 0.04 |
* Information about more standards is available in the datasheet for the respective alloy.
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