Title:
100 KG-GRADE ULTRAHIGH-STRENGTH GALVANIZED STEEL SHEET AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2024/002313
Kind Code:
A1
Abstract:
The present invention provides a 100 kg-grade ultra-high-strength galvanized steel sheet having excellent resistance spot welding properties and excellent resistance to liquid metal embrittlement (LME) cracking. The steel sheet contains the following components in percentage by weight: C: 0.17-0.25%, Mn: 1.7-2.7%, Si: 0.35-1.5%, Al: 0.01-1.0%, 0.7%≤Si+Al≤1.7%, and at least one of Nb, Ti and B, with the balance being Fe and unavoidable impurities. When the thickness of the steel sheet is t, the resistivity thereof is 0
Inventors:
CHEN MENG (CN)
ZHONG YONG (CN)
BI WENZHEN (CN)
WANG LI (CN)
ZHONG YONG (CN)
BI WENZHEN (CN)
WANG LI (CN)
Application Number:
PCT/CN2023/104377
Publication Date:
January 04, 2024
Filing Date:
June 30, 2023
Export Citation:
Assignee:
BAOSHAN IRON & STEEL (CN)
International Classes:
C22C38/02; C21D8/02; C22C38/04; C22C38/06; C23C2/06
Foreign References:
| CN113348258A | 2021-09-03 | |||
| KR20210014054A | 2021-02-08 | |||
| CN110662854A | 2020-01-07 | |||
| CN113416887A | 2021-09-21 | |||
| US20200181729A1 | 2020-06-11 |
Attorney, Agent or Firm:
SHANGHAI PATENT & TRADEMARK LAW OFFICE, LLC (CN)
Download PDF: