STEEL FOR HOT STAMPING, HOT STAMPING PROCESS, AND HOT STAMPED COMPONENT

摘要

The present invention presents a steel for hot stamping, a hot stamping process and a hot stamped component. The steel for hot stamping in weight percentage contains C: 0.2-0.4%, Si: 0-0.8%, Al: 0-1.0%, B: 0-0.005%, Mn: 0.5-3.0%, Mo: 0-1%, Cr: 0-2%, Ni: 0-5%, V: 0-0.4%, Nb: 0-0.2% , Ti: <0.01%, and impurity elements such as P, S, N unavoidable during smelting, wherein 29^∗Mo+16^∗Mn+14^∗Cr+5.3^∗Ni ≥ 30% is satisfied when B≤0.0005%, and 0.4-1.0% Al is contained when 0.0005%