GCr18Mo Bearing steel

GCr18Mo is a new high-hardenability bearing material. GCr18Mo steel is used a lower bainite austempering heat treatment process to obtain lower bainite structure and higher retained austenite content. GCr18Mo Bearing steel also has higher impact toughness and fracture toughness.

GCr18Mo Chemical Composition

C 0.95-1.05
Si 0.20-0.40
Mn 0.25-0.40
Mo 0.15-0.25
Cr 1.65-1.95
P 0.020
Cu 0.25
Ni+Cu 0.020
S 0.0250

GCr18Mo Performance and application:

The new high-hardenability bearing material of GCr18Mo is mainly used in the manufacture of important machinery such as railway vehicles.