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Stellite 6 Valve Seat | Wear-Resistant Cobalt Chrome Alloy Seat Stellite 6 Valve Seat | Wear-Resistant Cobalt Chrome Alloy Seat Stellite 6 Valve Seat | Wear-Resistant Cobalt Chrome Alloy Seat

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

ParameterSpecification
MaterialCobalt-chromium-tungsten alloy (Stellite 6)
UNS DesignationR30006
Density8.44 g/cm³
Melting Point1,285 – 1,350°C
Hardness38 – 45 HRC (as-cast)
Tensile StrengthUp to 900 MPa
Yield StrengthUp to 700 MPa
Elongation< 1%

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