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Standard Specification for Metal Injection Molding (MIM) Ferrous Materials
1.1 This specification covers ferrous metal injection molded materials fabricated by mixing elemental or pre-alloyed metal powders with binders, injecting into a mold, debinding, and sintering, with or without subsequent heat treatment.
1.2 This specification covers the following injection molded materials.
1.2.1 Compositions:
1.2.1.1 MIM-2200, low-alloy steel
1.2.1.2 MIM-2700, low-alloy steel
1.2.1.3 MIM-4605, low-alloy steel
1.2.1.4 MIM-4140, low-alloy steel
1.2.1.5 MIM-316L, austenitic stainless steel
1.2.1.6 MIM-17-4 PH, precipitation hardening stainless steel
1.2.1.7 MIM-420, ferritic stainless steel
1.2.1.8 MIM-430L, ferritic stainless steel
1.3 Chemical composition limits are specified in Table 1.
Material |
| Fe | Ni | Cr | Co | Mo | C | Cu | Si | Mn | Nb + Ta | V | Other |
MIM-2200 | Min. | Bal. | 1.5 | - | - | - | - | - | - | - | - | - | - |
| Max. | Bal. | 2.5 | - | - | 0.5 | 0.1 | - | 1.0 | - | - | - | 1.0 |
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MIM-2700 | Min. | Bal. | 6.5 | - | - | - | - | - | - | - | - | - | - |
| Max. | Bal. | 8.5 | - | - | 0.5 | 0.1 | - | 1.0 | - | - | - | 1.0 |
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MIM-4605 | Min. | Bal. | 1.5 | - | - | 0.2 | 0.4 | - | - | - | - | - | - |
| Max. | Bal. | 2.5 | - | - | 0.5 | 0.6 | - | 1.0 | - | - | - | 1.0 |
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MIM-4140 | Min. | Bal. | - | 0.8 | - | 0.2 | 0.3 | - | - | - | - | - | - |
| Max. | Bal. | - | 1.2 | - | 0.3 | 0.5 | - | 0.6 | 1.0 | - | - | 1.0 |
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MIM-316L | Min. | Bal. | 10 | 16 | - | 2 | - | - | - | - | - | - | - |
| Max. | Bal. | 14 | 18 | - | 3 | 0.03 | - | 1.0 | 2.0 | - | - | 1.0 |
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MIM-420 | Min. | Bal. | - | 12 | - | - | 0.15 | - | - | - | - | - | - |
| Max. | Bal. | - | 14 | - | - | 0.4 | - | 1.0 | 1.0 | - | - | 1.0 |
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MIM-430L | Min. | Bal. | - | 16 | - | - | - | - | - | - | - | - | - |
| Max. | Bal. | - | 18 | - | - | 0.05 | - | 1.0 | 1.0 | - | - | 1.0 |
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MIM-17-4PH | Min. | Bal. | 3 | 15.5 | - | - | - | 3 | - | - | 0.15 | - | - |
| Max. | Bal. | 5 | General InformationStatus : Historical Standard Type: Main Document No: ASTM B883 : 10e1 Document Year: 2010 Pages: 6 Edition: e1
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