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Metal Injection Molding Materials for Custom Electronic, Structural and Magnetic Parts

PolyAlloys Injected Metals manufactures electronic, structural and magnetic parts and components in a wide variety of metals and alloys. PolyAlloys is experienced in the use of super alloys and a wide variety of hard metals to manufacture precision components.  Please review the properties of our standard metals along with information about their specific applications.  For additional information and assistance, please give us a call at 310.715.9800.

Mechanical and Physical Properties of MIM Materials:

Low Alloy Steel  -  Stainless Steel  -  Soft Magnetic Steel  -  Tungsten Carbide  -  Tungsten Heavy Alloy  -  Copper and Copper Alloys

Low Alloy Steel

Low Alloy Metals
MIM-2200
MIM-2700
MIM-4140
MIM-4605

 
Material
Code

Typical Values

Density

Tensile Properties

Young's
Modulus

Un-
notched
Charpy
Impact
 Energy

Hardness

Ultimate
Strength

Yield
Strength
(0.2%)

Elong-
ation
(in 1 in.)

Macro

Micro

g/cc
103 psi
103 psi
%
106 psi
ft-lbf
Rockwell
MIM-2200

as-sintered

7.6
42
18
40.0
28.0
100
45 HRB
MIM-2700

as-sintered

7.6
60
37
26.0
28.0
130
69 HRB
MIM-4605

as-sintered

7.5
64
30
15.0
29.0
50
62 HRB
MIM-4605

quench/temper

7.5
240
215
2.0
29.5
40
48 HRC
55 HRC

Stainless Steel

Stainless Steel Metals
MIM-316L
MIM-430L
MIM-17-4 PH As-sintered
MIM-17-4 PH Heat Treated

Material

Code

Typical Values

Density

Tensile Properties

Young's

Modulus

Un-notched

Charpy

Impact

 Energy

Hardness

Corrosion Resistant

Ultimate

Strength

Yield

Strength

(0.2%)

Elongation

(in 1 in.)

Macro

Micro

H2SO4

g/dm2
/day

CuSO4

Boil Test

(H2O)

g/cc

103 psi

103 psi

%

106 psi

ft-lbf

Rockwell

MIM-316L

as-sintered

7.7

75

25

50

28

140

67 HRB

<0.005

Pass

Pass

MIM-430L

as-sintered

7.5

60

35

25

65 HRB

     

MIM-17-4 PH

as-sintered

7.6

130

106

6

28

50

32 HRC

<0.005

Pass

Pass

MIM-17-4 PH

Heat Treated

7.6

172

158

6

28

40 HRC

44 HRC

<0.005

Pass

Pass

Soft Magnetic Steel

Low Alloy Metals
MIM-2200
MIM-Fe-50%Ni
MIM-Fe-3%Si
MIM-Fe-50%Co
MIM-430L

Material

Code

Typical Values

Magnetic Properties

Tensile Properties

Max.

Permeability /

µ max 

Hc

Br

B25

B500

Ultimate

Strength

Yield

Strength

(0.2%)

Elong
ation

(in 1 in.)

Macro

hardness

kG

Oe

kG

kG

kG

103 psi

103 psi

%

HRB

MIM-2200

2,300

1.5

8.0

14.5

20.0

42

18

40

45

MIM-Fe-50%Ni

Grade 1

Grade 2

47,500

27,000

0.13

0.20

10.0

10.0

14.0

14.0

15.0

15.0

66

66

23

23

30

30

50

50

MIM-Fe-3%Si

Grade 1

Grade 2

8,500

6,000

0.7

1.0

12.0

12.0

14.5

14.5

19.5

19.5

77

77

57

57

24

24

80

80

MIM-Fe-50%Co

5,200

1.5

14.0

20.0

22.0

30

20

<1

80

MIM-430L
1,500
1.8
5.5
11.5
11.5
60
35
25
65

 

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Tungsten Carbide

Grade

Density

Hardness/HRA

TRS/PSI

MIM-WC-6Co

 

15.2

 

92.3

 

510,000

MIM-WC-9Co

 

14.6

 

91.4

 

525,000

MIM-WC-11.5Co

14.3

89.6

530,000

MIM-WC-20Co 13.55 86.0 470,000

 

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Tungsten Heavy Alloy

Grade

WNF-7129 WNF-5421 WNF-3515 WNF-2109
Mil. T-21014 Class 1 Class 2 Class 3 Class 4
SAE-AMS-T-21014 Class 1 Class 2 Class 3 Class 4
AMS 7725 B 7725B
ASTM-B-777-87 Class 1 Class 2 Class 3 Class 4
Minimum Density (g/cc) 16.85 17.15 17.75 18.25
Nominal W Content (wt.%) 90 92.5 95 97
Nominal Nickel Content (wt.%) 7.1 5.4 3.6 2.1
Nominal Iron Content (wt.%) 2.9 2.1 1.4 0.9
Maximum Magnetic Perm n/a n/a n/a n/a
Typical Hardness (HRC) 28 28 29 30
Modulus of Elasticity
(x106 psi)
45 48 50 52
Ultimate Tensile Strength Min. (ksi) 120 120 120 110
0.2% Offset Yield Strength Min (ksi) 80 80 80 80
Minimum % Elongation (1" Gauge Length) 10 8 6 2