Title:
HOT-STAMPED COMPONENT
Document Type and Number:
WIPO Patent Application WO/2024/048860
Kind Code:
A1
Abstract:
The present invention provides a hot-stamped component comprising a base steel sheet comprising 0.15-0.27 wt% of carbon (C), 0.15-1.0 wt% of silicon (Si), 0.5-1.10 wt% of manganese (Mn), 0.018 wt% or less of phosphorus (P), 0.005 wt% or less of sulfur (S), 0.1-1.0 wt% of chromium (Cr), 0.1-1.0 wt% of aluminum (Al), 0.015-0.080 wt% of titanium (Ti), 0.015-0.080 wt% of niobium (Nb), 0.1-0.7 wt% of molybdenum (Mo), 0.001-0.008 wt% of boron (B), 0.005 wt% or less of nitrogen (N), and the remainder of iron (Fe) and other unavoidable impurities, wherein the base steel sheet has a martensite structure, and the martensite structure has a nanoindentation hardness of 3.0-5.0 GPa with a standard deviation of 0.8 GPa or less.
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Inventors:
KANG SEOK HYEON (KR)
YOO BYUNG GIL (KR)
KIM JE WOO SOO (KR)
HAN SEONG KYUNG (KR)
YOO BYUNG GIL (KR)
KIM JE WOO SOO (KR)
HAN SEONG KYUNG (KR)
Application Number:
PCT/KR2022/020263
Publication Date:
March 07, 2024
Filing Date:
December 13, 2022
Export Citation:
Assignee:
HYUNDAI STEEL CO (KR)
International Classes:
C22C38/28; B21D22/02; B21D37/16; C21D9/00; C22C38/00; C22C38/06; C22C38/22; C22C38/26
Domestic Patent References:
| WO2022080489A1 | 2022-04-21 |
Foreign References:
| JP2021155790A | 2021-10-07 | |||
| KR20120137511A | 2012-12-21 | |||
| CN113829697A | 2021-12-24 | |||
| KR102237488B1 | 2021-04-08 |
Attorney, Agent or Firm:
Y.P.LEE, MOCK & PARTNERS (KR)
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