COBALT-CHROMIUM ALLOY

Cobalt-chromium alloys are completely non-magnetic and corrosion-resistant. There are a number of alloys, with various compositions optimised for different uses. Some alloys are currently most suited for cutting tools, for example, because they are quite hard, maintains a good cutting edge even at high temperature, and resists hardening and annealing due to heat. Other alloys are formulated to maximize combinations of wear resistance, corrosion resistance, or ability to withstand extreme temperatures.
This alloys display astounding hardness and toughness, and are also so hard that they are very difficult to machine, and anything made from them is, as a result, very expensive.