Refractory Metal Composite Material Properties

Introduction

Refractory metal composite material mainly refers to a combination of WC and other metal (Cu, Ag). The manufacturing process is extruded at high temperatures refractory (tungsten or tungsten carbide), sintering presses compact, penetrating with copper or silver. So it can obtain materials with high hardness, high conductivity, good wear resistance and arc ablation resistance.

 

RWMA
Group B

Proportion

(%)

Rockwell Hardness

Conductivity
% ACS

PSI

Breaking Strength
PSI

Density
GMS/CC

CTE
in/in
cx10(6)
at 20°

Thermal Conductivity
W/CM °C
20-400°C

Specific Heat
/kg °C
at 20°

Resistivity
at 20°

CW55

---

45 Cu
55 W

79B

55

63000

110000

12.60

11.80

2.40

251

3.16

CW68

---

32Cu
68W

88B

52

75000

130000

13.93

10.90

2.10

219

3.33

CW70

class10

30Cu
70W

90B

50

85000

140000

14.18

10.77

2.01

214

3.41

CW75

class11

25Cu
75W

94B

48

90000

150000

14.70

10.22

1.89

201

3.51

CW78

class
11&12

22Cu
78W

96B

46

94000

160000

15.12

9.30

1.84

194

3.71

CW80

Class 12

20Cu
80W

98B

44

96000

170000

15.58

9.20

1.82

188

3.9

CW85

--

15Cu
85W

102B

36

75000

170000

16.19

7.97

1.75

175

4.71

CW90

--

10Cu
90W

106B

28

70000

150000

17.05

6.49

1.47

163

6.1

CW75

--

25Cu
75W

109B

28

16000

200000

14.60

--

--

--

6.1

TC50

--

50Cu
50 WC

94B

47

70000

140000

11.27

12.2

--

--

3.6

TC56

--

44Cu
56WC

99B

42

75000

160000

11.67

11.5

--

--

4.1

TC70

--

30Cu
70WC

37C

30

85000

180000

12.60

9.8

--

--

5.7

TCa70

--

30 Cu
70WC

47C

18

150000

220000

12.60

--

--

--

9.5

Molybdenum

class
14

100
Mo

92-98B

33

100000

---

10.15

5.40

1.15

260

5.2

Tungsten

class
13

100
W

35-50C

30

100000

---

19.10

4.40

1.25

140

6.5

Diemetal

--

92.5 W+Ni、Fe、Mo

 

 

 

 

 

 

 

 

 

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