Hot-rolled steel sheet for production of non-oriented electrical steel sheet and method of manufacturing same
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United States of America Patent
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Apr 17, 2018
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Oct 11, 2013
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Oct 16, 2012
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Abstract
The pickling loss when a hot-rolled steel sheet having a predetermined chemical composition is annealed at 1000° C. for 30 seconds in a nitrogen atmosphere and then immersed in a solution of 7% HCl at 80° C. for 60 seconds is in a range of 40 g/m2 or more and 100 g/m2 or less. A hot-rolled steel sheet for production of a non-oriented electrical steel sheet with not only excellent magnetic properties such as iron loss and magnetic flux density but also excellent recyclability and steel sheet surface appearance can thus be obtained.
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