METAL MY WAY IS BACK! Submit your metal-creation before Sept. 30th for a chance to win awesome prizes. Enter Now

Hardening a ferrous alloy by austenitizing and then cooling rapidly enough so that some or all of the austenite transforms to martensite. The austenitizing temperature for hypoeutectoid steels is usually above Ac3 and for hypereutectoid steels usually between Ac1 and Accm.

  • Stay up to date

    Subscribe to our monthly e-newsletter and other updates from Metal Supermarkets.

Shopping from the UK?

Visit our UK website for our stores, online ordering and product availability.