1) 42CrMo gear steel has the characteristics of high strength, high harden-ability, good toughness, small deformation during quenching, high creep strength and durable strength at high temperature.

Used to manufacture forgings that require higher strength and larger quenched and tempered sections than 35CrMo steel, such as: large gears for locomotive traction, supercharger transmission gears, pressure vessel gears, rear axles, extremely loaded connecting rods and springs It can also be used for oil deep well drill pipe joints and fishing tools below 2000m; and can be used for molds of bending machines, etc.

2) 20CrMnTiH gear steel is a carburizing steel with good performance, high harden-ability, hard and wear-resistant surface and tough core after carburizing and quenching, high low temperature impact toughness, medium weld-ability, and can be welded after normalizing Good machinability.

It is used to manufacture important parts with a cross-section <30mm that withstand high-speed, medium or heavy loads, impact and friction; such as: gears, ring gears, gear shaft cross-heads, etc. It is a substitute steel for 18CrMnTi, which is widely used as carburized parts. It is used in automobile and tractor industries with a section below 30mm; it is an important carburized part that bears high-speed, medium or heavy loads and is subject to impact and friction;