Patent ID: 6386583
Filing Date: 2002-05-14
Classification: B60R,C21D,C22C,F17C,Y02E

Abstract:
A low carbon high strength steel consisting essentially of, by weight, about 0.07% to about 0.12% carbon, about 0.70% to about 1.60% manganese, up to about 0.020% phosphorous, up to about 0.015% sulfur, about 0.06% to about 0.35% silicon, about 0.25% to about 1.20% chromium, up to about 0.65% nickel, about 0.20% to about 0.70% molybdenum, up to about 0.35% copper, about 0.02% to about 0.06% aluminum, up to about 0.05% vanadium, up to about 0.25% residual elements, and the balance iron, wherein said steel has a tensile strength of at least about 130,000 psi, a yield strength of at least about 104,000 psi, and elongation at break of at least about 14%.