What are the main applications of 20CrMn steel?

The main characteristics of 20CrMn steel: carburizing steel, high strength, toughness, good hardenability. The properties obtained after heat treatment are better than 20Cr. The quenching deformation is small, the low temperature toughness is good, the cutting machinability is good; But the welding performance is low. It is generally used after carburizing and quenching or tempering.

20CrMn steel is a kind of alloy structural steel grade stipulated by the Chinese national standard. Uniform digital code: A22202.

20CrMn is a carburizing steel, can also be used as quenching and tempering steel, hardenability and 20CrNi is similar. Used as shaft and connecting rod working at high speed and high bending load, gear shaft, gear, pump rotor, clutch, small shaft, spindle working at high speed and high load without strong impact load, in chemical equipment can be used as high pressure vessel cover plate bolts; It can partially replace 42CrMo and 40CrNi steels.

The application of 20CrMn steel for example, for the manufacture and heavy load large section of quenching parts and small section of carburizing parts, but also can be used for the manufacture of medium load, impact small small parts, instead of 20CrNi use, such as gear, shaft, friction wheel, worm speed sleeve, etc.