Performance: high-carbon, high-chromium type ledeburite, has a good hardenability, cross-sectional dimensions at 400mm or less completely hardenability and a high abrasion resistance, small volume change during hardening. Its lower carbon content than many Crl2 steel, and joined the molybdenum, vanadium, and therefore, the hot workability of steel, impact toughness and carbide distribution have been significantly improved. Uses: used in the manufacture larger cross-sectional shape of complex, high wear resistance, withstand greater impact loads cold mold, such as cold cut scissors, trimming die, trim dies, gauges, wire drawing dies, thread rolling plate, thread roller die, the complex shape of the punching die, steel deep drawing die, as well as requiring high wear Die and red top. Production varieties: hot-rolled sheet, forgings, cold-drawn material, hot-rolled steel, cold-drawn steel wire.