API 11AX Standard Wolfram Carbide Valve Balls and Valve Seats
Vavle ball and valve seat advantage
1.We use 100% raw material to produce tungsten carbide products
2.It is with high hardness, good wear resistance and high toughness
3.We can offer any size tungsten carbide products
4.We proudce the product according to your requirements.
Material for Balls and Seats
Symbol | Symbol | Hardness | Material |
| A1 | Stainless Steel |
Ball:HRC 58-65
Seat:HRC 52-56 |
UNS 41000-UNS 44000 |
| B2 | Cobalt Alloy ,Cast |
Ball :HRC 56-63
Seat:HRC 50-56 |
Cobalt,chromium,and tungsten alloy |
| B2 | Cobalt Alloy, Powder Metal |
Ball:HRC 53-60
Seat:HRC 51-57 |
Cobalt ,chromium,and tungsten alloy |
| C1 | Tungsten Carbide |
Ball:HRA 88-89
Seat:HRA 88-89 |
Tungsten with Cobalt binder |
| C3 | Titanium carbide |
Ball:HRA 89-90.5
Seat:HRA 89-90.5 |
Tungsten and titanium carbide with cobalt binder |
1. High strength, hign wear resistance, high percision, good temperature resistance and good corrosion resistance.
2. Mainly used for the sealing of valves of oil pumps in petroleum industry`s containing wells, viscous oil wells, sea oil wells and high pressure sulfur resistant oil wells, etc.
3. Balls and seats are used with compatiable cemented carbide valve seats.
4. The finished surface, tolerance standard have reached the standards of the machine industry: G5, G10, G16, G40 and G100 of JB/T 9145-1999.
5. Precision machined cemented carbide balls of other grades and specifications are also available based on customers` demands.
6. Compatiable high precision valve seats can also be made.