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Abstract

The present application discloses a non-oriented silicon steel and a method for producing the same. The production method includes: carrying out steelmaking in accordance with 0.8-1.1% of Si and 0.2-0.4% of Mn, without the addition of Sn and Sb, and making a cast billet; heating the cast billet to 1060-1120° C., then rolling and finish rolling and coiling the cast billet into a hot rolled coil with a thickness of 3.00±0.25 mm, where the start-rolling temperature for finish rolling is ≤872° C.+1000*(11*[Si]−14*[Mn]+21*[Al]), the end-rolling temperature for finish rolling is ≤820° C., and the coiling temperature is ≤560° C.; normalizing and acid tandem rolling, where the normalizing temperature is 850-900° C.; and annealing at the temperature for final annealing of 820-880° C., cooling, coating and finishing are carried out to obtain the non-oriented silicon steel.

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First Claim