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.

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 CompositionsMIM-2200, low-alloy steel produced from admixtures of iron powder and other alloying elements such as nickel and molybdenum.

MIM-2700, low-alloy steel produced from admixtures of iron powder, and other alloying elements such as nickel and molybdenum.

MIM-4605, low-alloy steel produced from admixtures of iron powder and other alloying elements such as nickel, molybdenum, and carbon.

MIM-316L, austenitic stainless steel produced from pre-alloyed powder or an admixture of powders.

MIM-17-4 PH, precipitation hardening stainless steel produced from prealloyed powder or an admixture of powders.

MIM-430L , ferritic stainless steel produced from pre-alloyed powder or an admixture of powders.

1.3 Chemical composition limits are specified in .

1.4 Property values stated in inch-pound units are to be regarded as the standard. Conversions to SI units may be approximate.