NON-ORIENTED ELECTROMAGNETIC STEEL SHEET

WIPO Patent Application WO/2023/182474

A1

The component composition of the non-oriented electromagnetic steel sheet according to the present invention contains the following, in mass%: C : 0.0005 to 0.0030%, Si : 1.5 to 3.5%, Al : 0.10 to 2.00%, Mn : 0.1 to 2.0%, P : not more than 0.180%, S : 0.0005 to 0.0030%, N : 0.0005 to 0.0030%, Ti : 0.0005 to 0.0030%, B : 0 to 0.0020%, and Sn + 2 x Sb : 0 to 0.25%, with the balance being Fe and impurities. The non-oriented electromagnetic steel sheet according to the present invention also satisfies 2 ≤ A ≤ 10, 1.0 ≤ B ≤ 10, and 0.8 ≤ B/A ≤ 1.0 where: t is the sheet thickness; A is the strength of the crystal orientation {111}<112> orientation measured at a position in the range from 2/5t to 3/5t; and B is the strength of the {100}<012> orientation measured at a position in the range from 2/5t to 3/5t.

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ICHIE TAKERU (JP)
MURAKAMI KENICHI (JP)
MURAKAMI FUMINOBU (JP)

PCT/JP2023/011703

September 28, 2023

March 24, 2023

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NIPPON STEEL CORP (JP)

C21D8/12; C22C38/00; C22C38/14; C22C38/60; H01F1/147

JP2018178197A	2018-11-15
JP2018178196A	2018-11-15
JP2019052360A	2019-04-04
JP2020020005A	2020-02-06

MATSUNUMA Yasushi et al. (JP)

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