Sandvik's range of Osprey™ metal powder includes a wide variety of master alloy powders for metal injection moulding (MIM). The master alloys are designed to be blended with carbonyl iron powder such that the chemical composition of the final sintered components matches that of the pre-alloy equivalent.
Master alloys benefits
The master alloy approach has a number of benefits; low distortion in both the green and sintered state, shorter sintering times, high sintered density and mechanical properties equivalent to wrought materials.
| Blend ratio | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Alloy | MA | Carbonyl Fe | Fe | C | Cr | Ni | Mo | Si | Mn | W | V | Cu | Nb |
| 304L/MA |
1
|
2
|
6.5 | ≤0.08 | Bal. | 30.0 |
-
|
≤3.0 | 3.5 |
-
|
-
|
-
|
-
|
| 316L/MA |
1
|
2
|
≤0.08 | Bal | 38.0 | 7.2 | ≤1.0 | ≤0.5 |
-
|
-
|
-
|
-
|
|
| 420/MA |
1
|
3
|
Bal. | ≥0.6 | 52.0 |
-
|
-
|
≤4.0 | ≤4.0 |
-
|
-
|
-
|
-
|
| 4140/MA |
1
|
2
|
Bal. | 1.2 | 3.0 |
-
|
0.6 | 2.6 | 2.6 |
-
|
-
|
-
|
-
|
| 4340/MA | 1 | 2 | Bal. | 1.2 | 2.4 | 4.7 | 0.75 | 0.75 | 1.8 | - | - | - | - |
| 4605/MA | 1 | 2 | Bal. | 1.5 | - | 6.0 | 1.0 | ≤1.0 | - | - | - | - | - |
| 17-4 PH/MA |
1
|
2
|
Bal. | ≤0.07 | 50.0 | 13.0 |
-
|
≤2.0 | ≤2.0 |
-
|
-
|
12.0 | 0.7 |
| M2/MA |
1
|
2
|
Bal. | 3.0 | 13.0 |
-
|
15.0 | 0.8 | 0.8 | 18.5 | 6.0 | - | - |
Other master alloys are also available. Contact us to discuss Sandvik's full range of metal powder alloys.