Abstract: A method of producing high tensile aluminum-magnesium alloy sheet from an aluminum-based melt containing a relatively low percentage of magnesium, such as 1.5-2.3%, in which the melt is formed into a sheet having a uniform thickness between 1/8-1/2 inch quenched to a temperature below about 500.degree. F. within a period of not more than three (3) minutes, in which the quenched sheet is cold rolled straight down to a thickness between 0.01 and 0.02 inch without the application of extraneous heat to the sheet. The resulting aluminum-magnesium alloy sheet has a fully-hardened tensile strength in excess of 50,000 psi.

Abstract: A method for producing fully processed, non-silicon containing, low-carbon electrical steel without post-anneal deformation by continuously annealing a steel strip having a carbon content less than 0.02% at a temperature within the range of 1350.degree. F. to 1550.degree. F.

Abstract: A dual-phase steel strip is produced by heating a hot rolled steel strip to a temperature within the intercritical temperature range, annealing the heated strip for a period of from 15 seconds to 5 minutes, and controlling the average cooling rate to about 3.6F..degree.-45F..degree./sec. (2C..degree.-25C..degree./sec.) down to the martensite formation temperature of about 850.degree. F..+-.100.degree. F. (454.degree. C..+-.56.degree. C.). The hot rolled strip will have a chemical composition of 0.08 to 0.12% C, 1.25 to 1.8% Mn, 0.5 to 0.7% Si, and 0.1 to 0.7% Cr, the balance being substantially Fe.

Abstract: Pure aluminum alloy which has been continuously cast and partially worked to a strip at a gauge of 0.25 inches through use of a Hunter-Caster, is heated to a temperature in a range of about 900.degree. to about 1150.degree. F. and then subjected to slow cooling in a range between cooling at around 600.degree. F./hr. as a maximum, and cooling at a rate of 25.degree. F./hr. as a practical minimum, until ambient temperature or about 100.degree. F. is reached. After cooling, the alloy strip is subjected to cold working and annealing until a desired gauge is reached for a particular product, one typical product being aluminum foil. In one process according to the invention, the strip is heated as it leaves a Hunter-Caster and then coiled, and the cooling is effected by leaving the coil in ambient air. In another process, it is coiled prior to heating which is then effected by placing the coil in a suitable furnace such as in box annealing.