Stellite™ Alloys

The cobalt-based Stellite™ alloys are our most well-known and successful alloys, with the best “all-round” properties. They combine excellent mechanical wear resistance, especially at high temperatures, with very good corrosion resistance. The alloy system Co-Cr-W(Mo)-C is generally very resistant to cavitation, corrosion, erosion, abrasion and galling. The lower carbon alloys are generally recommended for cavitation, sliding wear or moderate galling conditions. The higher carbon alloys are usually selected for protection against abrasion, severe galling, or low-angle erosion. Stellite™ 6 is our most popular alloy as it provides a good balance of all these characteristics. The Stellite™ alloys retain their properties at high temperatures where they also show excellent oxidation resistance. They are typically used in the temperature range of 300 - 800 °C. They can be machined to exceptional levels of surface finish with low coefficients of friction in various tribological systems.