### Overview of Stellite Alloy

Stellite is a hard alloy renowned for its resistance to various forms of wear, corrosion, and high-temperature oxidation. Commonly referred to as a cobalt-based alloy, Stellite was invented by American engineer Elwood Haynes in 1907. 

### Composition

Stellite alloys primarily consist of cobalt, along with significant amounts of nickel, chromium, and tungsten. They may also include smaller quantities of alloying elements such as molybdenum, niobium, tantalum, titanium, lanthanum, and occasionally iron. Depending on the specific composition, Stellite alloys can be manufactured into various forms, including:

- Welding wires  

- Powders for hardfacing welding  

- Thermal spraying and spray welding materials  

- Castings and forgings  

- Powder metallurgy components  

### Applications

Stellite alloy castings are utilized across numerous industries, including:

- Nuclear power  

- Petrochemical  

- Electrical engineering  

- Battery production  

- Glass manufacturing  

- Light industry  

- Food processing  

These alloys are known for their wear resistance, corrosion resistance, oxidation resistance, and high-temperature stability. Common products made from Stellite alloys include:

- Valve cores and valve seats  

- Shafts and sleeves  

- Pump components  

- Glass molds  

- Battery molds  

- Nozzles  

- Cutting tools  

### Categories of Stellite Alloys

Stellite alloys can be categorized into:

- Cobalt-based alloy castings  

- Nickel-based alloy castings  

- Iron-based alloy castings  

### Powder Metallurgy Products

Stellite powder metallurgy products are produced using cobalt-based, nickel-based, or iron-based atomized powders. These powders are pressed, sintered, and finely processed to create components such as:

- Valve stems  

- Valve cores (balls)  

- Valve seats  

- Valve rings  

- Sealing rings  

- Wood saw teeth  

- Bearing pumps  

- Bearing balls  

For further information or inquiries, please feel free to contact us.