Stellite 6 Valve Seat | Wear-Resistant Cobalt Chrome Alloy Seat
- High-performance Stellite 6 valve seat
- Manufactured from cobalt-chromium-tungsten alloy
- Excellent wear resistance and galling resistance
- Outstanding corrosion resistance in harsh chemical environments
- Superior high-temperature strength and creep resistance
- Maintains hardness at elevated temperatures (up to 800°C)
- Custom sizes and configurations available per customer requirements
- Ideal for oil & gas, chemical processing, and high-pressure valves
Description Of Stellite 6 Valve Seat
Stellite 6 Valve Seat is a high-performance valve seat manufactured from Stellite 6, a cobalt-chromium-tungsten alloy known for its exceptional wear resistance, corrosion resistance, and high-temperature strength. Stellite 6 is one of the most widely used cobalt-based alloys, containing approximately 28% chromium, 4.5% tungsten, and 1.2% carbon.
Stellite 6 valve seats are designed to withstand severe abrasion, erosion, and high-pressure fluid flow without galling or seizure. The material maintains its hardness and mechanical properties at elevated temperatures up to 800°C, making it ideal for high-temperature and high-pressure valve applications.
Stellite 6 valve seats are available in custom sizes and configurations, with surface finishes including machined, ground, lapped, and polished. Typical applications include oil & gas valves (gate valves, ball valves, check valves), chemical processing valves, and high-pressure valve systems.
Features Of Stellite 6 Valve Seat
Excellent Wear Resistance: Stellite 6 offers superior resistance to abrasion, erosion, and galling.
Outstanding Corrosion Resistance: Resists harsh chemicals, acids, and seawater.
Superior High-Temperature Strength: Maintains hardness and mechanical properties up to 800°C.
Reliable Sealing: Precision-machined and lapped to achieve tight tolerances and reliable sealing performance.
Good Impact Resistance: Cobalt matrix provides toughness to withstand impact loads.
Non-Sparking: Suitable for use in hazardous environments.
Customizable Dimensions: Custom sizes and configurations available.
Applications Of Stellite 6 Valve Seat
Oil and Gas Valves: Stellite 6 valve seats are used in gate valves, ball valves, check valves, and choke valves for drilling, production, and refining.
Chemical Processing: Used in valves handling corrosive chemicals, acids, and slurries.
Power Generation: Used in high-temperature and high-pressure steam valves for power plants.
High-Pressure Systems: Used in high-pressure valve applications requiring exceptional wear resistance and reliable sealing.
Marine and Offshore: Used in seawater valves and offshore platform equipment.
Industrial Valves: Used in general industrial valve applications requiring long service life.
Specifications Of Stellite 6 Valve Seat
| Parameter | Specification |
|---|---|
| Material | Cobalt-chromium-tungsten alloy (Stellite 6) |
| UNS Designation | R30006 |
| Density | 8.44 g/cm³ |
| Melting Point | 1,285 – 1,350°C |
| Hardness | 38 – 45 HRC (as-cast) |
| Tensile Strength | Up to 900 MPa |
| Yield Strength | Up to 700 MPa |
| Elongation | < 1% |

