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MIM process is able to work on below materials:

Iron-Nickel-Carbon alloy :

Fe-2%Ni (C:about 0.3-0.5%)
Fe-8%Ni (C:about 0.5-0.7%)
Stainless steel alloy :
316L, 304L, 630(17-4PH), 440C, 420J2
Carbon steel :
4140, 4340
Specialize alloy :
M2, SKD11, Kovar (F150), Cu, SKH57
Soft magnetic alloy :
Permalloy PB, Permallot PC, 18Si-Fe
MIM Mechanical properties of frequently used materials

Item

Density
(g/cm3)

Tensile strength
(Mpa)

Elongation
(%)

Apparent hardness

Hardness after heat treatment

Properties

Fe-2%Ni
>7.4
280
25
HRb55
HRc50↑
 
Fe-8%Ni
>7.4
450
12
HRb84
HRc48↑
 
316L
>7.5
495
53
HRb66
 
Good corrosion stability
304
>7.4
480
40
HRb187
 
 
17-4PH
>7.6
850
6
HRb100
HRc38
 
420J2
>7.4
540
18
 
HRc40
 
4140
>7.5
1100
3
 
HRc50
 
4340
>7.4
950
10
 
HRc50-60
 
M2
>7.9
1600
 
 
HRc60
 
Above data for reference only

MIM Tolerance Chart

M.I.M. Tolerance Chart
Dimension Tolerance
25.0 mm~
±0.15
12.0~25.0 mm
±0.10
6.0~12.0 mm
±0.05
3.0~6.0 mm
±0.03
1.0~3.0 mm
±0.02
~1.0mm
±0.02

MIM compared with other other processes

  MIM Traditional powder metallurgy Precision forging Machining
Production cost
Medium
Low
Medium
High
Density
95%-99%
<95%
100%
100%
Probability for mass production
High
High
Medium
Low
Mechanical properties
High
Medium
Medium
High
Surface roughness
Fine
Medium
Medium
Fine
Geometrical complexity
High
Low
Medium
High
Material choice
Many
Medium
Medium
Many
Coating
Excellent
Low
Excellent
Excellent
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