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:
Apr. 20, 2021
Filed:
Jul. 25, 2016
Baoshan Iron & Steel Co., Ltd., Shanghai, CN;
Jun Li, Shanghai, CN;
Dechao Xu, Shanghai, CN;
Xin Liu, Shanghai, CN;
Zhilong Ding, Shanghai, CN;
Yuling Ren, Shanghai, CN;
Xuewei Ye, Shanghai, CN;
Hengfa Hu, Shanghai, CN;
Hongming Chen, Shanghai, CN;
Baoshan Iron & Steel Co., Ltd., Shanghai, CN;
Abstract
An aluminium-zinc-hot-dipped and colour-coated steel plate having yield strength of ≥500 MPa and a high elongation and a manufacturing method thereof, with the chemical components in mass percentage of a substrate of the steel plate being: 0.07-0.15% of C, 0.02-0.5% of Si, 1.3-1.8% of Mn, N≤0.004%, S≤0.01%, Ti≤0.15%, Nb≤0.050%, and the balance being Fe and other inevitable impurities, and meanwhile satisfying the conditions of: (C+Mn/6)≥0.3%; Mn/S≥150; Nb satisfying 0.01%≤(Nb-0.22C-1.1N)≤0.05% where no Ti is contained; Ti satisfying 0.5≤Ti/C≤1.5 where no Nb is contained; and 0.04%≤(Ti+Nb)≤0.2% where Ti and Nb are added in combination. The steel plate has a tensile strength of ≥550 MPa, an elongation after fracture of ≥15%, a good strength and toughness and an excellent corrosion resistance.