Cladser Co-21

Comprising a CoCrMo alloy matrix interspersed with hard carbides, Cladser Co-21 achieves a delicate balance between strength and hardness, albeit at the expense of ductility. The alloy's mechanical properties heavily hinge on its manufacturing process and subsequent heat treatments, which profoundly influence the type, shape, size, and distribution of carbides. Notably, Cladser Co-21 shares its alloy type with Stellite® 21 (registered trademark of Kennametal Stellite).

Despite the dominance of the Co-based alloy matrix in wear and corrosion resistance, Cladser Co-21 excels in resisting cavitation, galling, and metal-to-metal sliding wear. However, it's not recommended for scenarios involving severe hard particle abrasion. Notably, its surface can undergo significant work hardening during wear or machining, underscoring the importance of employing appropriate tools and techniques for optimal results.

The alloy exhibits remarkable resistance to both thermal and mechanical shocks. Optimal high-temperature strength is achieved through precise solution heat treatments followed by quenching and aging within specific temperature ranges.