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:
Nov. 16, 2021
Filed:
Oct. 13, 2017
Applicant:
Tata Steel Ijmuiden B.v., Velsen-Noord, NL;
Inventors:
Maxim Peter Aarnts, Castricum, NL;
Job Anthonius Van Der Hoeven, Haarlem, NL;
Edgar Matthijs Toose, Hoofddorp, NL;
Assignee:
TATA STEEL IJMUIDEN B.V., Velsen-Noord, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21D 9/48 (2006.01); C21D 8/02 (2006.01); C22C 38/00 (2006.01); C22C 38/04 (2006.01); C23C 2/06 (2006.01); C23C 2/12 (2006.01);
U.S. Cl.
CPC ...
C21D 9/48 (2013.01); C21D 8/0226 (2013.01); C21D 8/0236 (2013.01); C22C 38/004 (2013.01); C22C 38/04 (2013.01); C23C 2/06 (2013.01); C23C 2/12 (2013.01); C21D 2201/05 (2013.01);
Abstract
A steel strip, sheet or blank used for painted parts, wherein the steel strip, sheet or blank is optionally metallic coated. According to the invention, the steel has grains with an essentially equi-axed median grain size smaller than 11.0 micrometer, resulting in a difference in Waviness ΔWsa≤0.12 μm between the surface before and after the forming of the strip, sheet or blank. The invention also relates to a method for producing such a steel strip.