18965090. HOT STAMPING PART AND MANUFACTURING METHOD THEREFOR (Hyundai Steel Company)
HOT STAMPING PART AND MANUFACTURING METHOD THEREFOR
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HOT STAMPING PART AND MANUFACTURING METHOD THEREFOR
This abstract first appeared for US patent application 18965090 titled 'HOT STAMPING PART AND MANUFACTURING METHOD THEREFOR
Original Abstract Submitted
A hot stamping part includes: a base material; a decarburization layer located on the base material; and an inner oxide layer located on the decarburization layer, wherein the hot stamping part has a tensile strength (TS) of 1680 MPa to 2000 MPa, and a hardness of the hot stamping part within a depth of 50 μm from a surface of the hot stamping part in a plate thickness direction of the hot stamping part and an average hardness of the hot stamping part satisfy Relational Expression 1.