We are professional cold works D2 tool steel supplier for more than two decades. We supply AISI / ASTM A681 cold works D2 tool steels alloy steel materials in reliable quality and for attractive price for sale. We have deep knowledge of D2 tool steels chemical composition and properties. Contact us for any D2 tool steel materials demands. Cold Works D2 tool steel is a high carbon, high chromium tool steel (12% chrome) with extremely high wear resisting properties, heat treatable to 60-62 Rc. D2 steel is very wear resistant but not as tough as lower alloyed steels. D2 tool steel hardens in air with a low order of movement and offers a measure of corrosion resistance when polished. The high percentage of chromium gives it mild corrosion-resisting properties in the hardened condition. The mechanical properties of D2 are very sensitive to heat treatment. D2 steel is available in de-carb free rounds, flats, and squares, as well as ground flat stock and drill rod.