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Tungsten Carbide Seals

Suitable Tungsten carbide Grade for manufacturing seals
D=Density g/mm3, H= Hardness HRA, BS=Bending Strenght N/mm2,
EC=Expansion Coefficient (10ˉ6/K, 25－500 oc)

WC,Co.Ni

Grade

Content

D

H

BS

EC

WC

Co

Ni

WC－Co

Y86B

94

6

-

14.8-15

89.5

1421

5.0

WC－Co

Y68B

92

8

-

14.5-14.9

89

1472

5.1

WC－Co

Y615B

85

15

-

13.9-14.2

87

2068

5.3

WC－Ni

YWN8B

92

-

8

14.4-14.8

88

1470

5.3

WC-Ni-Co

YCN3B

97

(CO+NNi)3

-

15.0-15.3

91

1300

4.3

 
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