Cleveland-cliffs Steel Properties Inc.

Ak Steel Properties, Inc.

Amrinder Singh Gill

Grant Aaron Thomas

Paul Valdas Janavicius

Luis Gonzalo Garza-Martinez

Erik James Pavlina

A high strength steel comprises up to about 0.25 wt % C, up to about 2.0 wt % Si, up to about 2.0 wt % Cr, up to 14% Mn, and less than 0.5% Ni. It preferably has an Mtemperature less than 50&#xb0; C. The high strength steel may have a tensile strength of at least 1000 MPa and total elongations of at least about 25% after hot rolling. It may have a tensile strength of at least 1200 MPa and total elongations of at least about 20% after hot rolling.

High manganese 3generation advanced high strength steels

Warming a metastable steel after coating and before or during cold rolling suppresses the transformation of austenite to martensite, resulting in lower mill loads and higher amounts of reduction at similar loads. As-warm rolled steel has enhanced mechanical properties when compared to steel reduced the same amount by cold rolling at room temperature.

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West Chester, OH, United States of America

Amrinder Singh Gill