Steel Sheet For Hot Stamping And Hot Stamp Molded Body

Abstract: The present invention provides a steel sheet for hot stamping, the steel sheet having a specific chemical composition, while having a metal structure that contains, in area ratios, 10% or more of ferrite and 10% or more of pearlite, with the sum of ferrite and pearlite being 80% or more, and has a dispersion index of pearlite of 0.50 or more. The present invention also provides a hot stamp molded body which has a specific chemical composition, while having a metal structure that contains, in an area ratio, a total of 90% or more of at least one of martensite, bainite and tempered martensite, wherein the standard deviation of the hardness distribution of prior austenite grains at a position corresponding to 1/4 the sheet thickness is 150 Hv or less.

Patent Information

Applicants

Inventors

Specification

Documents

Application Documents