Stellite Machining
Stellite
Designed for wear resistance, Stellite alloy is a range of cobalt-chromium alloys. It contains a significant amount of carbon, but may alto contain tungsten or molybdenum. As a cobalt alloy, Stellite machining is completely non-magnetic and corrosion-resistant. Because of its hardness, Stellite 100 is most suited for cutting tools. It maintains a good cutting edge even at high temperature and resists hardening and annealing due to heat. Combinations are formulated of other alloys to maximize wear resistance, corrosions resistance or the ability to withstand extreme temperatures. Stellite is a trademarked name of the Delora Stellite Company.
Stellite Usage
Stellite is the material of choice for certain internal parts in industrial process valves and valve seats. It has also been used in the manufacturing of turning tools for lathes. Stellite machining was used as the cage material for the first commercial prosthetic heart valve and is widely used for making the cast structure of dental prosthesis.
Machining Stellite
Stellite alloys are difficult to machine and tend to have extremely high melting points due to the cobalt and chromium content. Typically, Stellite machining is completed by grinding, as opposed to cutting and parts are precisely cast to require minimal machining.
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