Tungsten Carbide Valve Seat
- Used in various specifications and configurations and under abrasive, corrosive, and aggressive conditions.
- For sealing of valves of oil pumps in the petroleum industry's sand-containing wells, viscous oil wells, sea oil wells, high-pressure sulfur-resistant oil wells.
- Various grades of tungsten carbide valve seats can be supplied according to the customer's drawings.
- The surface finish, tolerance class and tolerances of dimensions have respectively reached the standards of the machine industry.
Advantages Of Using Tungsten Carbide Valve Seat
As the main material of carbide valve seats, tungsten carbide has unique properties: long working time, corrosion resistance, and wear resistance. Also, the tungsten carbide valve seats can withstand high pressure. They can be widely used for most passenger vehicles, light and heavy-duty trucks, diesel engines and industrial engines.
Outstanding Features Of Carbide Valve Seat
1. Corrosion resistance and wear resistance
2. Longer life-time
3. High pressure
4. High precision
5. Excellent endurance to high temperature
Mold Parameter Diagram
| Carbide Seat Dimension (mm) | ||
| D | d | H |
| 19.48 | 11.68 | 12.7 |
| 22.66 | 13.97 | 12.7 |
| 28.22 | 17.02 | 12.7 |
| 33.81 | 20.96 | 12.7 |
| 36.09 | 24.38 | 12.7 |
| 41.43 | 26.92 | 12.7 |
| 48.79 | 33.27 | 12.7 |
| 74.93 | 43.18 | 19.05 |
Grade And Application For Valve Seat
| Grade | Co (wt%) | Density (g/cm3) | Hardness(HRA) | TRS (≥N/mm2) | Application |
| XC100 | 5.8-6.2 | 14.6-15.0 | 91.5-92.5 | 2000 | Wear-resistant |
| XC101 | 5.8-6.2 | 14.6-15.0 | 91.5-92.5 | 2500 | |
| XC200 | 7.8-8.2 | 14.5-14.9 | 91.0-92.0 | 2100 | |
| XC201 | 7.8-8.2 | 13.5-14.9 | 91.0-92.0 | 2800 | |
| XC300 | 9.8-10.3 | 14.2-14.6 | 90.5-91.5 | 2600 | |
| XC301 | 9.8-10.3 | 14.2-14.6 | 90.5-91.5 | 3200 | |
| Grade | Ni (wt%) | Density (g/cm3) | Hardness (HRA) | TRS (≥N/mm2) | Application |
| XN100 | 6.5-7.5 | 14.5-14.8 | 88.5-91.0 | 1800 | Corrosion-resistant |
| XN101 | 6.5-7.5 | 14.5-14.8 | 88.5-91.0 | 2200 | |
| XN300 | 10.0-11.0 | 14.2-14.6 | 86.5-89.5 | 2100 | |
| XN301 | 10.0-11.0 | 14.2-14.6 | 86.5-89.5 | 2400 |
Grade List
|
Chinese Grade |
Equal to ISO Category Number | Chemical Composition | Physical Mechanical Properties | |||
| WC | Co | Density | Bend Strength | Hardness | ||
| % | % | G/Cm3 | N/mm2 | HRA | ||
| YG3 | K01 | 96.5-97 | 3 | 14.9-15.3 | ≥1180 | ≥91.0 |
| YG6X | K10 | 93.5 | 6 | 14.8-15.1 | ≥1420 | ≥92 |
| YG6 | K20 | 94 | 6 | 14.7-15.1 | ≥1600 | ≥91 |
| YG8 | K20-K30 | 92 | 8 | 14.5-14.9 | ≥1600 | ≥90 |
| YG10 | K40 | 90 | 10 | 14.3-14.7 | ≥1900 | ≥89 |
| YG10X | K40 | 89 | 10 | 14.3-14.7 | ≥2200 | ≥89.5 |
| YG15 | K30 | 85 | 15 | 13.9-14.2 | ≥2100 | ≥87 |
| YG20 | K30 | 80 | 20 | 13.4-13.7 | ≥2500 | ≥85.5 |
| YG20C | K40 | 80 | 20 | 13.4-13.7 | ≥2200 | ≥85.5 |
| YG30 | G60 | 70 | 30 | 12.8 | ≥2750 | ≥82 |
Production Process
