Bearing  Steel


The  Bearing steel is one of the most demanding of the high quality steel applications. Important criteria are cleanliness of the steel and the reduction of non-metallic inclusions – particles that could cause stresses and hence potential failure of the steel component. Through careful attention to these factors, coupled with the introduction of a number of key techniques including vacuum degassing, argon shrouding of molten steel and inductive stirring during secondary steel refining, the fatigue performance of engineering steels has improved progressively.

Applications for through-hardening bearing steel are typically roller bearing components but also components that require high fatigue strength such as diesel injection components. The hardness levels these steel reach also makes them excellent in wear applications or cutting/slitting/grinding applications. When also combined with a stabilizing heat treatment they give a dimensional stability needed in many tool steel applications.