HOT-STAMPED PART AND MANUFACTURING METHOD THEREFOR

Title:

HOT-STAMPED PART AND MANUFACTURING METHOD THEREFOR

Document Type and Number:

WIPO Patent Application WO/2020/222394

Kind Code:

A1

Abstract:

A hot-stamped part according to an embodiment of the present invention comprises, as a base layer, a steel comprising: 0.28-0.38 wt% of carbon (C); 0.1-0.4 wt% of silicon (Si); 1.2-2.0 wt% of manganese (Mn); from greater than 0 to 0.020 wt% of phosphorus (P); from greater than 0 to 0.003 wt% of sulfur (S); 0.1-0.5 wt% of chromium (Cr); 0.0015-0.0040 wt% of boron (B); 0.025-0.05 wt% of titanium (Ti); and the remainder of iron (Fe) and inevitable impurities, wherein the microstructure of the base layer is full martensite.

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Inventors:

KONG JE YOUL (KR)
KIM JI YOUNG (KR)
PARK YOUNG CHUL (KR)
KIM HYE JIN (KR)
YOO BYUNG GIL (KR)
YOOK WAN (KR)
YOON SEUNG CHAE (KR)
YIM GI HAK (KR)
JANG JEONG HWAN (KR)

Application Number:

PCT/KR2019/018501

Publication Date:

November 05, 2020

Filing Date:

December 26, 2019

Export Citation:

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Assignee:

HYUNDAI STEEL CO (KR)

International Classes:

B21D22/02; B21D37/16; C22C38/32; C22C38/38

Foreign References:

KR20190001493A	2019-01-04
KR101508861B1	2015-04-07
JP2010150612A	2010-07-08
KR20180011004A	2018-01-31
KR101938092B1	2019-04-11

Attorney, Agent or Firm:

AJU INTERNATIONAL LAW & PATENT GROUP (KR)

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