WL stellite 12

Stellite 12 could be considered an intermediate alloy between Stellite 6 and Stellite 1. It contains a higher fraction of hard, brittle carbides than Stellite 6, and has increased resistance to low-angle erosion, abrasion, and severe sliding wear whilst retaining reasonable impact and cavitation resistance. Stellite 12 is often used self-mated or running against Stellite 6 or Stellite 1. The higher tungsten content provides better high-temperature properties compared to Stellite 6, and it can be used at temperatures up to about 700 ̊C.

Stellite 12’s remarkable physical properties make it an attractive choice for wear-resistant applications. It has a density of about 8.4 g/cm3, which is relatively high for an alloy. The melting point of Stellite 12 is around 1305°C, making it capable of withstanding high-temperature environments. The alloy’s thermal conductivity is about 23 W/mK, which is lower than copper but higher than many other alloys. This property suggests that the alloy can handle moderate heat dissipation effectively.

Stellite 12 is typically used for cutting tools that need to withstand abrasion, heat, and corrosion. Examples include industrial knives for cutting carpets, plastics, paper and synthetic fibres; and saw tips in the timber industry. It is also used for control plates in the beverage industry, pump vanes, bearing bushes and narrowneck glass mold plungers; and for hardfacing of engine valves, pinch rollers in the metal-processing industries and rotor blade edges.