Electrical Equipment & Supplies

Common MIM (Metal Powder Injection Molding) Materials and Their Properties

MIM is a new metal parts near-net forming processing technology formed by introducing modern plastic injection molding  technology into the field of powder metallurgy,  which is a high technology that has been developing very rapidly in the field of powder metallurgy and industry in  recent years.Then, after granulation,  it is injected into the mold cavity by injection molding machine in the heated plasticized state to obtain a molding  blank, then degreased by chemical or solvent extraction, and finally sintered and densified to obtain the final product.

  • Features of MIM products:

1, the high degree of freedom of the geometry of the parts, like the production of plastic products,  a complex shape of metal parts can be formed and produced.

2, MIM products uniform density, good finish, surface roughness can reach Ra 0.80 ~ 1.6μm, weight range of 0.1 ~ 200g. high dimensional accuracy (± 0.1% ~ ± 0.3%), generally without subsequent processing.

3, wide range of applicable materials, wide application areas, high utilization rate of raw materials,  high degree of production automation, simple procedures, continuous mass production can be achieved.

4, stable product quality, reliable performance, the relative density of the product can reach 95% to 99%,  can be carburized, quenched, tempered and other heat treatment. The products have high mechanical properties such as strength, hardness and elongation, good wear resistance,  fatigue resistance and uniform organization.

Internationally,  it is widely believed that the development of MIM technology will lead to a revolution in the technology of forming  and processing of parts, and is known as “the hottest technology of forming parts in the 21st century”.

Common MIM material applications:

Material system Alloy grade and composition Field of application
Low alloy steel Fe-2Ni, Fe-8Ni Various structural parts in automobile, machinery and other industries
Stainless steel 316L ,17-4PH Medical equipment, watch parts
Cemented carbide WC-Co All kinds of cutting tools, clocks and watches
Tungsten alloy W-Ni-Fe, W-Ni-Cu, W-Cu Military industry, communications, daily necessities
Titanium alloy Ti,Ti-6Al-4V Medical and military structural parts
Magnetic material Fe,Fe14 Nd2 B,SmCo5 Various magnetic performance components


Properties of several typical MIM materials:

Material Density Hardness Tensile strength Elongation
g/cm3 Rockwell MPa %
Iron based alloy MIM-2200 (Sintered) 7.65 45HRB 290 40
MIM-2700 (Sintered) 7.65 69HRB 440 26
MIM-4605 (Sintered) 7.62 62HRB 415 15
MIM-4605 (quenched and tempered) 7.62 48HRC 1655 2
Stainless steel MIM-316L (Sintered) 7.92 67HB 520 50
MIM-17-4PH (sintered) 7.5 27HRC 900 6
MIM-17-4PH (heat treatment state) 7.5 40HRC 1185 6
MIM-430L (Sintered) 7.5 65HRB 415 25
Tungsten alloy 95%W-Ni-Fe 18.1 30 960 25
97%W-Ni-Fe 18.5 33 940 15
Cemented carbide YG8X 14.9 HRA90 Bending strength 2300
Fine ceramics Al2O3 3.98 HRA92 Bending strength 530


Harber metal has been a reliable partner and supplier of sophisticated and high-quality semi-finished products maed of  alloys. In dialogue with our customers, we optimise our products to meet the specific application requirements. Harber metal develops the best alloy material solutions for current and future challenges.

Harber Metal Ltd. is a powder metallurgy manufacturing company created since 2014, with good production facilities and advanced technology, and is now into the production of iron-based powder metallurgy and stainless steel powder metallurgy.