HIGH STRENGTH ANNEALED STEEL PRODUCTS
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United States of America Patent
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Issued Date -
Feb 28, 2019
app pub date -
Aug 31, 2018
filing date -
May 10, 2016
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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 (UTS·TE) 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.
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