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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 12467112 B1

PDFFull Text
Date of Patent:
Nov. 11, 2025

Filed:

Dec. 30, 2020

Low-carbon low-cost ultra-high-strength multiphase steel plate/steel strip and manufacturing method therefor

Applicant:

Baoshan Iron & Steel Co., Ltd., Shanghai, CN;

Inventors:

Hanlong Zhang, Shanghai, CN;

Yiqiang Sun, Shanghai, CN;

Xinping Mao, Shanghai, CN;

Yulong Zhang, Shanghai, CN;

Cheng Wang, Shanghai, CN;

Xinyan Jin, Shanghai, CN;

Li Wang, Shanghai, CN;

Shuize Wang, Shanghai, CN;

Assignee:

BAOSHAN IRON & STEEL CO., LTD., Shanghai, CN;

Attorneys:

Smith Tempel Blaha LLC

Lei Fang, Esq.

Primary Examiner:

Danielle M Carda

Int. Cl.
CPC ...
C21D 9/52 (2006.01); C21D 8/02 (2006.01); C22C 38/02 (2006.01); C22C 38/06 (2006.01); C22C 38/44 (2006.01); C22C 38/46 (2006.01); C22C 38/48 (2006.01); C22C 38/50 (2006.01); C22C 38/58 (2006.01);
U.S. Cl.
CPC ...
C21D 9/52 (2013.01); C21D 8/0226 (2013.01); C21D 8/0273 (2013.01); C21D 8/0278 (2013.01); C22C 38/02 (2013.01); C22C 38/06 (2013.01); C22C 38/44 (2013.01); C22C 38/46 (2013.01); C22C 38/48 (2013.01); C22C 38/50 (2013.01); C22C 38/58 (2013.01); C21D 2211/002 (2013.01); C21D 2211/005 (2013.01);
Abstract

Disclosed are a low-cost ultra-high-strength multiphase steel plate/steel strip and its manufacturing method. Said steel plate/steel strip comprises the following components in percentage by weight: 0.03 to 0.07% of C, 0.1 to 0.5% of Si, 1.3 to 1.9% of Mn, less than or equal to 0.02% of P, less than or equal to 0.01% of S, 0.01 to 0.05% of Al, 0.2 to 0.5% of Cr, 0.07 to 0.14% of Ti, less than 0.03% of (Ni+Nb+Mo+V), and the balance being Fe and other inevitable impurities; and Mn+1.5Cr+5 (Ti+Al+Cu)+10(Mo+Ni)+20(Nb+V)<3.0; Mn+2Cr+4Ti+4Nb+4V+4Mo—Si/3+2C≤3.0. The steel plate is mainly used for the manufacturing of automotive chassis and suspension system parts.

Find Patent Forward Citations

Zhang, Hanlong. (2025). Low-carbon low-cost ultra-high-strength multiphase steel plate/steel strip and manufacturing method therefor (U.S. Patent No. 12467112). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12467112

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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