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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 12629766 B1

PDFFull Text
Date of Patent:
May. 19, 2026

Filed:

Nov. 27, 2020

Carbon steel and austenitic stainless steel rolling clad plate manufacturing method therefor

Applicant:

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

Inventors:

Peng Xue, Shanghai, CN;

Xiaodong Zhu, Shanghai, CN;

Bo Yan, Shanghai, CN;

Sihai Jiao, Shanghai, CN;

Assignee:

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

Attorneys:

Lei Fang, Esq.

Smith Tempel Blaha LLC

Primary Examiner:

Lois L Zheng

Int. Cl.
CPC ...
B23K 20/04 (2006.01); B21B 1/38 (2006.01); C21D 8/0221 (2026.01); C21D 8/0247 (2026.01); C22C 38/00 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/06 (2006.01); C22C 38/42 (2006.01); C22C 38/44 (2006.01); C22C 38/58 (2006.01);
U.S. Cl.
CPC ...
B23K 20/04 (2013.01); B21B 1/38 (2013.01); C21D 8/0236 (2013.01); C21D 8/0273 (2013.01); C22C 38/001 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/06 (2013.01); C22C 38/42 (2013.01); C22C 38/44 (2013.01); C22C 38/58 (2013.01); B21B 2001/386 (2013.01); C21D 2211/001 (2013.01);
Abstract

Disclosed in the present invention is a manufacturing method for a carbon steel and austenitic stainless-steel rolling clad plate, comprising the steps of: (1) obtaining a blank material of a carbon steel layer and a blank material of a stainless-steel layer; (2) assembling blank materials; (3) cladding and rolling; (4) cold rolling; (5) first annealing; and (6) second annealing. The carbon steel and austenitic stainless-steel rolling clad plate has two unique annealing processes, so that the clad plate has the performance advantages of the austenitic stainless-steel and the carbon steel. In addition, further disclosed in the present invention is a carbon steel and austenitic stainless-steel rolling clad plate manufactured by this method.

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