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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