United States Steel Corporation
ANNEALING PROCESSES FOR MAKING HIGH STRENGTH STEEL PRODUCTS
Last updated:
Abstract:
The present invention provides steel sheet products having controlled compositions that are subjected to two-step annealing processes to produce sheet products having desirable microstructures and favorable mechanical properties such as high strength and ultra-high formability. Steels processed in accordance with the present invention exhibit combined ultimate tensile strength and total elongation (UTSTE) properties of greater than 25,000 MPa %. Steels with these properties fall into the category of Generation 3 advanced high strength steels, and are highly desired by various industries including automobile manufacturers.
Status:
Application
Type:
Utility
Filling date:
2 Jul 2019
Issue date:
26 Dec 2019