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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 10927429 B1

PDFFull Text
Date of Patent:
Feb. 23, 2021

Filed:

Dec. 15, 2016

High strength hot dip galvanised steel strip

Applicant:

Tata Steel Ijmuiden B.v., Velsen-Noord, NL;

Inventors:

Joost Willem Hendrik Van Krevel, Beverwijk, NL;

Cornelia Ionescu, Beverwijk, NL;

Assignee:

TATA STEEL IJMUIDEN B.V., Velsen-Noord, NL;

Attorney:

Vorys, Sater, Seymour and Pease LLP

Primary Examiner:

Daniel J Schleis

Int. Cl.
CPC ...
C21D 8/02 (2006.01); C23C 2/40 (2006.01); C22C 38/00 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/06 (2006.01); C22C 38/12 (2006.01); C23C 2/02 (2006.01); C23C 2/06 (2006.01); C23C 2/26 (2006.01); C22C 38/54 (2006.01); C22C 38/58 (2006.01); C22C 38/08 (2006.01); B32B 15/01 (2006.01); C22C 38/28 (2006.01); C22C 38/44 (2006.01); C22C 38/38 (2006.01); C22C 38/42 (2006.01); C22C 38/46 (2006.01); C22C 38/16 (2006.01); C21D 1/19 (2006.01); C22C 38/22 (2006.01); C22C 38/50 (2006.01); C22C 38/20 (2006.01); C22C 38/24 (2006.01); C22C 38/14 (2006.01); C22C 38/32 (2006.01);
U.S. Cl.
CPC ...
C21D 8/0247 (2013.01); B32B 15/013 (2013.01); C21D 1/19 (2013.01); C22C 38/001 (2013.01); C22C 38/002 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/06 (2013.01); C22C 38/08 (2013.01); C22C 38/12 (2013.01); C22C 38/14 (2013.01); C22C 38/16 (2013.01); C22C 38/20 (2013.01); C22C 38/22 (2013.01); C22C 38/24 (2013.01); C22C 38/28 (2013.01); C22C 38/32 (2013.01); C22C 38/38 (2013.01); C22C 38/42 (2013.01); C22C 38/44 (2013.01); C22C 38/46 (2013.01); C22C 38/50 (2013.01); C22C 38/54 (2013.01); C22C 38/58 (2013.01); C23C 2/02 (2013.01); C23C 2/06 (2013.01); C23C 2/26 (2013.01); C23C 2/40 (2013.01); C21D 8/0226 (2013.01); C21D 8/0236 (2013.01); C21D 8/0268 (2013.01); C21D 2211/001 (2013.01); C21D 2211/005 (2013.01); C21D 2211/008 (2013.01); Y10T 428/12799 (2015.01);
Abstract

A high strength hot dip galvanised steel strip consisting, in mass percent, of the following elements: 0.10-0.21% C, 1.45-2.20% Mn, max. 1.50% Si, 0.1-1.50% Al, 0.001-0.04% P, 0.0005-0.005% B, 0.005-0.30% V, max. 0.015% N, max. 0.05% S, and, optionally, one or more elements: max. 0.004% Ca, max. 0.10% Nb, max. 0.50% Cr, max. 0.20% Mo, max. 0.20%, Ni, max. 0.20% Cu, and max. 0.20% Ti the balance of the composition consisting of Fe and inevitable impurities. The steel has good surface finish and increased mechanical strength, in particular high overall strength, ductility and plasticity. It also relates to a process for the manufacture of a high strength hot dip galvanised steel strip and to the products thereof.

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