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. 15, 2018
Filed:
Sep. 22, 2011
Ekaterina Bocharova, Duisburg, DE;
Dorothea Mattissen, Mulheim an der Ruhr, DE;
Roland Sebald, Geldern, DE;
Daniel Krizan, Linz, AT;
Andreas Pichler, Voecklabruck, AT;
Ekaterina Bocharova, Duisburg, DE;
Dorothea Mattissen, Mulheim an der Ruhr, DE;
Roland Sebald, Geldern, DE;
Daniel Krizan, Linz, AT;
Andreas Pichler, Voecklabruck, AT;
ThyssenKrupp Steel Europe AG, Duisburg, DE;
Abstract
A multi-phase steel including in % wt. C: 0.14-0.25%, Mn: 1.7-2.5%, Si: 0.2-0.7%, Al: 0.5-1.5%, Cr: <0.1%, Mo: <0.05%, Nb: 0.02-0.06%, S: up to 0.01%, P: up to 0.02%, N: up to 0.01% and optionally at least one of Ti, B, and V according to the following stipulation: Ti: up to 0.1%, B: up to 0.002%, V: up to 0.15%, with the remainder iron and unavoidable impurities, wherein the microstructure has at least 10% vol. ferrite and at least 6% vol. residual austenite and the steel has a tensile strength Rof at least 950 MPa, a yield point Rof at least 500 MPa and an elongation at break Ameasured in the transverse direction of at least 15%. A method of producing the multi-phase steel.