Cobalt based materials / Stellite
Cobalt base alloys, also known under the brand name Stellite, are available in different hardnesses, from relatively soft materials that can be machined to tough wear-resistant alloys, optionally alloyed with tungsten carbides for extreme wear resistance. Cobalt-based materials are often used in high-temperature applications due to their high resistance to high-temperature corrosion. This makes it very suitable for solving various wear problems.
Properties
- Metallurgical connection to the substrate
- Resistant to line, impact and point loads
- Resistant to thermal shock
- Homogeneous and closed structure
- Commonly used for high-temperature applications
- Maximum operating temperature: 840˚C
Examples
- Valves / Valves / Seats
- Axle bushes / Wear bushes
- Exhaust valves combustion engines
- Thermowells
- Wear plates
- Forging Dies
- Knives
- Pull mandrels
- Transport screws / Augers
