Features of Multi-hole Sleeve
- Original tungsten carbide material.
- High wear resistance.
- Low surface friction coefficient after precise grinding and polishing.
- Widely used in ball bearings, seat valves, ball screws and flow meters, sprayers, pumps, mechanical parts and more.
We can customize according to customer’s requirements.
Performance Parameters
| Grade | Binder
(Wt%) |
Density
(g/cm³） |
Hardness
(HRA) |
TRS
( N/mm2) |
| YG6 | 6 | 14.8 | 90 | 1520 |
| YG6X | 6 | 14.9 | 91 | 1450 |
| YG6A | 6 | 14.9 | 92 | 1540 |
| YG8 | 8 | 14.7 | 89.5 | 1750 |
| YG12 | 12 | 14.2 | 88 | 1810 |
| NT15 | 15 | 14 | 87 | 2050 |
| YG20 | 20 | 13.5 | 85.5 | 2450 |
| YG25 | 25 | 12.1 | 84 | 2550 |
Applications
Specially developed to resist wear at high temperatures. They are mainly used for valve sealing of oil pumps in sand-containing wells, viscous oil wells, seawater oil wells and high-pressure sulfur-resistant oil wells in the petroleum industry.
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