What kind of steel is used for gears and sprocket? What heat treatment is required?

2018-03-18

Materials used to make sprocket and gears are generally based on application. The materials used are grey cast iron, low carbon steel, medium carbon steel, low carbon alloy steel and medium carbon alloy steel. (HT20-40, HT25-47, HT30-54, 45# steel, 40Cr, 40MnB, 15, 20, 20Cr, 18CrMnTi, 35CrMo) heat treatment of gray cast iron gears for stress relief annealing, low carbon steel gear gear carburizing and Quenched, medium carbon steel gears are high frequency quenched, some tempered at medium temperature and some tempered at low temperatures. In short, different materials use different heat treatment methods to produce gears and sprockets with high surface hardness and wear resistance, good toughness, and good impact resistance.