440C stainless steel has high strength, moderate corrosion resistant, good hardness and wear resistant material. After heat treatment, Stainless 440C is capable of attaining the highest strength, hardness and wear resistance of all the stainless alloys. Typically used in rolling element bearing, valve seats, high-quality knife blades, surgical instruments, chisels, gage blocks, cutlery, ball bearings and races, molds and dies, knives, valve components, measuring instruments.