20CrMo Alloy structural steel Application

20CrMo Alloy structural steel is a kind of steel material with high hardenability, no temper brittleness, good weld ability, little tendency to form cold crack, good machinability and cold strain plasticity.

Chemical Composition of 20CrMo

C 0.17-0.24
Si 0.17-0.37
Cr 0.80-1.10
Mn 0.40-0.70
Mo 0.15-0.25
S Allowable residual content≤0.035
P Allowable residual content≤0.035
Ni Allowable residual content≤0.03
Cu Allowable residual content≤0.03

20CrMo heat treatment:

20CrMo material belongs to low carbon alloy structural steel, and it is suitable for carburizing and quenching treatment; heat treatment specification: quenching 880 ° C, water cooling, oil cooling; tempering 500 ° C.

20CrMo hardness

20CrMo quenching (860-880 ° C water or oil cooling), adding low temperature (150--200 ° C) tempering, 20CrMo hardness is HRC32-33

20CrMo Alloy structural steel Application

20CrMo Alloy structural steel are used in the manufacture of high-pressure pipes and various fasteners, such as gears, shafts, etc., which work in non-corrosive media and media with a working temperature below 250 ° C and a mixture of nitrogen and hydrogen.