Steel Sheet For Hot Stamping, Method For Producing Steel Sheet For Hot Stamping, And Hot Stamped Molded Article

Abstract: A steel sheet for hot stamping which has a base material steel sheet having a prescribed chemical composition and a zinc plating layer formed on the surface of the base material steel sheet, wherein: the microstructure at a 1/4-depth position within the range of 1/8-3/8 of the plate thickness from the surface of the base material steel sheet in the plate thickness direction contains ferrite in the amount of 20-95% by volume and pearlite in the amount of 5-80% by volume; the remaining structure comprises bainite; the basis weight of the zinc plating layer is 90g/m2 or higher; and Bps is at least 1.2 times Bqs, if Bps is the maximum value of the B content in the zinc plating layer and Bqs is the B content at the 1/4-depth position in the base material steel sheet.

Patent Information

Applicants

Inventors

Specification

Documents

Application Documents