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.
1.3 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 | 17.5 | - | - | 0.07 | 5 | 1.0 | 1.0 | 0.45 | - | 1.0 |
This specification covers ferrous metal injection molded (MIM) 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. These materials are: low-alloy steel produced from admixtures of iron powder and other alloying elements such as nickel and molybdenum (MIM-2200 and MIM-2700); low-alloy steel produced from admixtures of iron powder and other alloying elements such as nickel, molybdenum, and carbon (MIM-4605); austenitic stainless steel produced from pre-alloyed powder or an admixture of powders (MIM-316L); precipitation hardening stainless steel produced from pre-alloyed powder or an admixture of powders (MIM-17-4 PH); and ferritic stainless steel produced from pre-alloyed powder or an admixture of powders (MIM-430L). Chemical analysis shall be performed for the elements copper, chromium, molybdenum, and nickel. The materials shall be subjected to tensile test and unnotched Charpy impact energy test.
SDO | ASTM: ASTM International |
Document Number | B883 |
Publication Date | Dec. 1, 2010 |
Language | en - English |
Page Count | 6 |
Revision Level | 10e1 |
Supercedes | |
Committee | B09.11 |