The invention provides a continuous cast electrical steel and its method of production from a steel melt having a composition range of up to 0.06% carbon, up to 0.04% sulphur, up to 0.15% phosphorus, up to 1.0% manganese, and not more than 0.001% silicon, the remainder being iron and incidental impurities, a silicon addition being made to the molten metal prior to the continuous casting mould in the range of 0.05% and 0.25%.
A clean steel consisting essentially of by weight 0.0005%-0.5% of aluminum, 0.0001%-0.5% of silicon, 0.00001%-0.0005% of magnesium, 0.00001%-0.0025% of calcium, 0.00001%-0.003% of oxygen 0.00001%-0.003% of sulfur and 0.0001%-0.015% of nitrogen, less than 2% carbon and the remainder iron, wherein the clean steel is further selected from the group consisting of carbon steel consisting of less than 2% of carbon, and common elements of silicon, manganese, phosphorus or sulfur; and alloy steel consisting of general elements and special elements selected from the group consisting of 0.001%-50% of at least nickel, chromium, cobalt or tungsten.