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MIM is applicable to wide range of materials which includes low alloy steel, stainless steel, tool steel, nickel-based alloys, tungsten alloy, carbide, titanium, magnetic materials, Kovar alloy and fine ceramics, etc.

 

Table 1 Typical MIM materials and applications:

 

Material System

Material composition

Typical applications

Low alloy steel

Fe-2Ni, Fe-8Ni

Automobile, machinery and other industries ,particularly in structural parts

Stainless steel

316L ,17-4PH, 420, 440C

Medical equipments, clocks, watches

Carbide

WC-Co

Various tools, clocks, watches

Ceramic

Al 2O, ZrO2 , SiO2

IT electronics, daily necessities, watches

Heavy Alloys

W-Ni-Fe, W-Ni-Cu, W-Cu

The arms industry, communications, daily necessities

Titanium

Ti,Ti-6Al-4V

Medical and military structural parts

Magnetic Materials

Fe, NdFeB, SmCo5,Fe-Si

Magnetic properties of the various components

Tool steel

CrMo4,M2

Tools

 

Table 2 Typical properties of several MIM materials:

Materials

Density

Hardness

Tensile strength

Elongation

g/cm 3

Rockwell

MPa

%

Fe-based alloys

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(Quenching and tempering)

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 (Sintered)

7.5

40HRC

1185

6

MIM – 430L (Sintered)

7.5

65HRB

415

25

Tungsten alloys

95%W-Ni-Fe

18.1

30

960

25

97%W-Ni-Fe

18.5

33

940

15

Carbide

YG8X

14.9

HRA90

Bending Strength 2300

Fine Ceramics

Al2O3

3.98

HRA92

Bending Strength 530