![]() The electrical steel shall conform to the specified magnetic properties including: specific core loss, permeability, specific exciting power, and magnetic aging. The processing sequence for the electrical steel comprises hot-rolling, annealing, pickling, cold-rolling, and decarburizing annealing. ![]() For melting and casting of the electrical steel, the typical content of the chemical elements: carbon, silicon, aluminum, sulfur, manganese, phosphorus, copper, nickel, chromium, molybdenum, antimony, and tin, are given. ![]() Desirable core-loss and permeability characteristics are developed during mill processing, so additional heat treatment is usually not necessary. These electrical steels are low-carbon, silicon iron, or silicon-aluminum-iron alloys that may be made by basic-oxygen, electric-furnace, or other steelmaking practice. This specification covers the detailed requirements for flat-rolled nonoriented fully processed electrical steel intended primarily for commercial power frequency applications in magnetic devices.
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