B - Operations – Transporting – 21 – B
Patent
B - Operations, Transporting
21
B
B21B 1/46 (2006.01) B21B 1/26 (2006.01) B21B 3/00 (2006.01) B65D 23/16 (2006.01) C21D 8/02 (2006.01)
Patent
CA 2473765
A flat rolled, high strength, formable steel product has a yield strength of at least about 100 ksi. The product has sufficient formability such that it can withstand a longitudinal or transverse 180° bend of less than 1.0 times its thickness and is preferably comprised of a high strength, low alloy steel composition containing a vanadium-nitride microalloy. The steel product is preferably produced by cold rolling a first steel product having a yield strength of at least about 70 ksi and a n-value from about 0.1 to about 0.16. Cold rolling of the first steel product reduces its thickness and increases its yield strength to at least 100 ksi.
Johnston James W.
Thomson Barton A.
Algoma Steel Inc.
Essar Steel Algoma Inc.
Ridout & Maybee Llp
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