Austenite and Martensite, in steel, refers to the microstructure of steel at the atomic level. During the tempering process or cooling, Austenite is transformed intoMartensite. The ideal wear resistant steel would have a combination of retained Austenite as well as some transformed Martensite.

Austenite

Austenitic steels have modest strength, good impact properties, are easier to form and weld, have good corrosion resistance and are non-magnetic.

An example is Titus Manganese steel. This steel is produced to the original “Hadfield Specification”, which guarantees optimum wear and work hardening properties.

Martensite

Martensite has very high strength, lower impact properties, lower corrosion resistance,is more difficult to form and weld, and is magnetic.

Examples areAR 400, AR 500 and AR 600 steels.

AR 400, 500 and 600 steels are heat treated at high temperatures and rapidly quenched or cooled by water, thereby converting most of the Austenite into Martensite.

ENDURA Steel

ENDURA Steelis the only wear resistant steel that can “work-harden’ from 430 BHN to 560 BHN, and which has a homogenous microstructure to resist tearing and shearing.

This steel has a combination of Austenite and Martensite – which is the ideal wear resistant steel. This is achieved by slowly cooling the steel in oil, not water, which helpsretain some of the Austenite.

Another reason for retaining some Austenite is for continued transformation into Martensite during impact or straining while in service. This is known as the TRIP EFFECT of ENDURA, whereby the more it is impacted, the harder it gets. Hit it once, it gets harder, hit it again, it gets even harder.

For more information about the best wear resistant steel for your needs, contact us now.