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Cold Rolled Non-oriented Silicon Steel Sheet Development
Jun 12, 2018

In the United States, Allegheny Ludlum began producing cold rolled non-oriented silicon steel sheets in the 1940s. In 1954 Japan began producing cold rolled non-oriented silicon steel sheets. Since the cold-rolled silicon steel sheet has the advantages of low loss, reliable quality, uniform thickness, and smooth surface, it has been widely used as soon as it appears, and has replaced the hot-rolled silicon steel sheet in many occasions.

Since the day of its birth, cold-rolled non-oriented silicon steel sheets have developed along two technical lines: first, developing in the direction of low price and low Si content to replace hot-rolled silicon steel sheets; and second, developing in the direction of low-loss, high-Si content . After the oil crisis of the 1970s, due to the needs of energy-saving motors and high-efficiency generators, low-loss cold-rolled non-oriented silicon steel sheets were greatly developed. Japan developed the highest level of H6 silicon steel in the world in 1983.

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