Non-oriented electrical steel sheet and method for preparing same
US11773463B2 · kind B2 · utility
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14Claims
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Key dates
| Filing date | May 16, 2018 |
| Grant date | Oct 3, 2023 |
| Priority date | — |
| Expiry date | Aug 21, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F1/16
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A non-oriented electrical steel sheet according to an exemplary embodiment of the present invention includes at least one of 2.0 to 3.5% of Si, 0.3 to 3.5% of Al, 0.2 to 4.5% of Mn, 0.0030 to 0.2% of Sn, 0.0030 to 0.15% of Sb, 0.0040 to 0.18% of P, 0.0005 to 0.02% of Zn, and 0.0005 to 0.01% of Y for wt %, a remainder of Fe, and inevitable impurities, and satisfying Formula 1: 0.05≤([Sn]+[Sb])/[P]≤25 [Formula 1] (here, [Sn], [Sb], and [P] represent contents (wt %) of Sn, Sb, and P.)
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.