Bake hardenable vanadium containing steel and method thereof

Metal treatment – Stock – Ferrous

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148651, 148603, 148537, 148534, C22C 3812, C21D 802

Patent

active

056561024

ABSTRACT:
Rolled articles such as hot rolled or cold rolled and annealed sheet and/or strip include effective amounts of vanadium in low carbon steels to produce an improved bake hardenable product especially adapted for automotive use. The use of vanadium in the alloy steel chemistry controls bake hardenability, permits solution annealing at lower temperatures in its manufacturing sequence and specifies a composition range which is more easily cast within desired limits and causes less variation in final mechanical properties. Controlling the vanadium to carbon ratio to maintain a value of about 10 or greater also improves aging resistance.

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