Stainless steels
The standard range of Osprey® metal powder includes various types of stainless steels to be used in a wide range of applications, such as additive manufacturing and metal injection moulding (MIM).
The tables below show a selection of our stainless steels. Other stainless steels are also available. For example, we have several types of duplex stainless steel. Contact us to discuss the full range of metal powder alloys.
Austenitic stainless steels
| Alloy (UNS) | Description | Fe | C | Cr | Ni | Mo | Si | Mn | S | P | Other |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 304L (S30403) |
See below1) | Bal. | 0.03 | 18.0-20.0 | 8.0-12.0 | - | 1.0 | 2.0 | 0.03 | 0.045 | - |
| 310S (S31008) |
Low carbon type 310 – for welding | Bal. | 0.08 | 24.0-26.0 | 19.0-22.0 | - | 1.5 | 2.0 | 0.03 | 0.045 | - |
| 316L (S31603) |
See below2) | Bal. | 0.03 | 16.0-18.0 | 10.0-14.0 | 2.0-3.0 | 1.0 | 2.0 | 0.03 | 0.045 | - |
| 316Ti (S31635) |
Titanium-alloyed stainless steel | Bal. | 0.08 | 16.0-18.0 | 10.0-14.0 | 2.0-3.0 | 1.0 | 2.0 | - | - | Ti 0.7, N 0.25 |
| '904L' | See below3) | Bal. | 0.02 | 19.0-23.0 | 23.0-28.0 | 4.0-5.0 | 1.0 | 2.0 | 0.035 | 0.045 | - |
| Nitronic 60** | Nitrogen-strengthened anti-galling alloy | Bal. | 0.1 | 16.0-18.0 | 8.0-9.0 | - | 3.5-4.5 | 7.0-9.0 | - | - | N 0.08-0.18 |
| 1.4091 | Heat-resistant steel typically used in automotive applications | Bal. | 1.15 | 34 | 15.0 | 3 | 1.0 | 0.7 | 0.03* | 0.03* | - |
| 1.4892 | Heat-resistant steel typically used in automotive applications | Bal. | 0.5 | 21 | 4.5 | - | 0.3 | 9.0 | 0.05* | 0.03* | - |
| HK-30 (J94203) |
Heat-resistant steel | Bal. | 0.25-0.35 | 23.0-27.0 | 19.0-22.0 | 0.5 | 0.75-1.75 | 1.5 | - | - | Nb 1.20-1.50 |
1) Essentially non-magnetic, becomes slightly magnetic when cold worked. Low carbon content means less carbide precipitation in the heat-affected zone during welding and a lower susceptibility to intergranular corrosion.
2) Good corrosion resistance to most chemicals. High creep strength at elevated temperatures. The low carbon content reduces the possibility of in vivo corrosion for medical applications.
3) High-alloy austenitic stainless steel characterized by very good resistance to general corrosion in sulphuric, phosphoric and acetic acid as well as very good resistance to pitting corrosion and stress corrosion cracking.
* Maximum value.
** Nitronic is a trademark owned by AK Steel Corporation.
Datasheet
Ferritic stainless steel metal powder
| Alloy (UNS) | Description | Fe | C | Cr | Si | Mn | S | P |
|---|---|---|---|---|---|---|---|---|
| 430 (S43000) |
General purpose ferritic steel | Bal. | 0.12 | 16.0-18.0 | 1.0 | 1.0 | 0.03 | 0.04 |
| 430L | Ferritic soft-magnetic stainless steel | Bal. | 0.03 | 16.0-18.0 | 1.0 | 1.0 | 0.03 | 0.04 |
| 434 (S43400) |
Molybdenum-alloyed ferritic steel for improved corrosion resistance in automotive trim |
Bal. | 0.12 | 16.0-18.0 | 1.0 | 1.0 | 0.03 | 0.04 |
Martensitic stainless steel metal powder
| Alloy (UNS) | Description | Fe | C | Cr | Mo | Si | Mn | S | P |
|---|---|---|---|---|---|---|---|---|---|
| 410 (S41000) |
See below1) | Bal. | 0.15 | 11.5- 13.5 |
-
|
1.0 | 1.0 | 0.03 | 0.04 |
| 420 (S42000) |
See below2) | Bal. | Min. 0.15 |
12-14 |
-
|
1.0 | 1.0 | 0.03 | 0.04 |
| 440C (S44004) |
See below3) | Bal. | 0.95- 1.20 |
16.0- 18.0 |
0.75 | 1.0 | 1.0 | 0.03 | 0.04 |
| 440B (S44003) |
See below4) | Bal. | 0.75- 0.95 |
16.0- 18.0 |
0.75 | 1.0 | 1.0 | 0.03 | 0.04 |
1) General purpose martensitic stainless steel.
2) Carbon increased to improved mechanical properties.
3) Carbon increase for highest hardness and chromium increased for corrosion resistance.
4) Carbon decreased slightly to improve toughness.
Datasheet
Osprey® 420 martensitic stainless steel metal powder (PDF document, 720 kB)
Precipitation hardening stainless steel metal powder
| Osprey® alloy (UNS) | Description | Fe | C | Cr | Si | Mn | S | P | Cu | Nb | Mo | Al | Ni |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 15-5 PH (S15500) |
See below1) | 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 |
| 17-4 PH (S17400) |
See below2) | 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 (S17700) |
See below3) | Bal. | 0.09 | 16.0- 18.0 |
1.0 | 1.0 | 0.04 | 0.04 |
–
|
– | – | 0.75- 1.50 |
6.5-7.75 |
| PH13-8Mo (S13800) | See below4) | 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 |
1) For use in fasteners and airframe parts.
2) Widely used in MIM because of its high strength, high hardness, excellent corrosion resistance and easy heat treatment.
3) For use in high-strength high-temperature applications, chemical processing equipment, heat exchangers.
4) For use in aerospace applications.
*Maximum value