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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 11788176 B1

PDFFull Text
Date of Patent:
Oct. 17, 2023

Filed:

Feb. 05, 2018

Steel for manufacturing a component by hot forming and use of the component

Applicant:

Outokumpu Oyj, Helsinki, FI;

Inventors:

Jasminko Skrlec, Duisburg, DE;

Stefan Lindner, Willich, DE;

Assignee:

OUTOKUMPU OYJ, Helsinki, FI;

Attorney:

Quinn IP Law

Primary Examiner:

Adam Krupicka

Int. Cl.
CPC ...
C22C 38/38 (2006.01); C22C 38/58 (2006.01); C21D 6/00 (2006.01); C21D 9/46 (2006.01); C21D 8/02 (2006.01); C22C 38/00 (2006.01); C22C 38/02 (2006.01); C22C 38/26 (2006.01); C22C 38/48 (2006.01); C21D 9/08 (2006.01);
U.S. Cl.
CPC ...
C22C 38/58 (2013.01); C21D 6/002 (2013.01); C21D 8/0205 (2013.01); C21D 8/0247 (2013.01); C21D 9/08 (2013.01); C21D 9/46 (2013.01); C22C 38/001 (2013.01); C22C 38/02 (2013.01); C22C 38/26 (2013.01); C22C 38/38 (2013.01); C22C 38/48 (2013.01); C21D 2211/001 (2013.01); C21D 2211/005 (2013.01); C21D 2211/008 (2013.01);
Abstract

A steel for manufacturing a component by hot forming after austenization includes in weight % less than or equal to 0.2%, carbon (C), less than or equal to 3.5% silicon (Si), 1.5-16.0% manganese (Mn), 8.0-14.0% chromium (Cr), less than or equal to 6.0% nickel (Ni), less than or equal to 1.0% nitrogen (N), less than or equal to 1.2% niobium (Nb) linked to the formula Nb=4x(C+N), less than or equal to 1.2% titanium (Ti) so that Ti=4x(C+N)+0.15, and optionally less than or equal to 2.0% molybdenum (Mo), less than or equal to 0.15% vanadium (V), less than or equal to 2.0% copper (Cu), less than 0.2% aluminum (Al), less than or equal to 0.05% boron (B), the rest being iron and evitable impurities.

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