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.:
Date of Patent:
May. 13, 2025
Filed:
Dec. 27, 2018
Applicant:
Ironovation Materials Technology Co., Ltd., Jiangsu, CN;
Inventors:
Hongliang Yi, Liaoning, CN;
Dapeng Yang, Liaoning, CN;
Xiaochuan Xiong, Jiangsu, CN;
Guodong Wang, Liaoning, CN;
Assignee:
Ironovation Materials Technology Co., Ltd., Jiangsu, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21D 9/48 (2006.01); B21D 22/02 (2006.01); C21D 1/673 (2006.01); C21D 6/00 (2006.01); C21D 8/02 (2006.01); C21D 8/12 (2006.01); C22C 38/00 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (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 38/54 (2006.01); C22C 38/58 (2006.01); C23C 2/28 (2006.01);
U.S. Cl.
CPC ...
C21D 9/48 (2013.01); B21D 22/022 (2013.01); C21D 1/673 (2013.01); C21D 6/005 (2013.01); C21D 8/0205 (2013.01); C21D 8/0226 (2013.01); C21D 8/0263 (2013.01); C21D 8/1277 (2013.01); C22C 38/001 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (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 38/54 (2013.01); C22C 38/58 (2013.01); C23C 2/28 (2013.01); C23C 2/29 (2022.08); C21D 2211/001 (2013.01);
Abstract
Steel for hot stamping, a hot stamping process and a hot stamped component, in which the steel for hot stamping contains in weight percentage C: 0.2-0.4%, Si: 0-0.8%, Al: 0-1.0%, B: 0-0.005%, Mn: 0.5-3.0%, Mo: 0-1%, Cr: 0-2%, Ni: 0-5%, V: 0-0.4%, Nb: 0-0.2%, Ti: ≤0.01%, and impurity elements such as P, S, N unavoidable during smelting. The relationship*Mo+16*Mn+14*Cr+5.3*Ni≥30% is satisfied when B≤0.0005%, and 0.4-1.0% Al is contained when 0.0005%<B≤0.005%.