US 12,110,569 B2
Non oriented electrical steel sheet and method for producing thereof
Takeru Ichie, Tokyo (JP); Masaru Takahashi, Tokyo (JP); Fuminobu Murakami, Tokyo (JP); Shinichi Matsui, Tokyo (JP); and Masahiro Yamamoto, Tokyo (JP)
Assigned to NIPPON STEEL CORPORATION, Tokyo (JP)
Appl. No. 17/437,726
Filed by NIPPON STEEL CORPORATION, Tokyo (JP)
PCT Filed Mar. 20, 2019, PCT No. PCT/JP2019/011663
§ 371(c)(1), (2) Date Sep. 9, 2021,
PCT Pub. No. WO2020/188783, PCT Pub. Date Sep. 24, 2020.
Prior Publication US 2022/0145418 A1, May 12, 2022
Int. Cl. C21D 9/46 (2006.01); C21D 6/00 (2006.01); C21D 8/00 (2006.01); C21D 8/12 (2006.01); C22C 38/00 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/06 (2006.01); C22C 38/16 (2006.01); H01F 1/147 (2006.01); H01F 41/02 (2006.01)
CPC C21D 9/46 (2013.01) [C21D 6/005 (2013.01); C21D 6/008 (2013.01); C21D 8/1222 (2013.01); C21D 8/1233 (2013.01); C21D 8/1272 (2013.01); C22C 38/001 (2013.01); C22C 38/002 (2013.01); C22C 38/005 (2013.01); C22C 38/008 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/06 (2013.01); C22C 38/16 (2013.01); H01F 1/14775 (2013.01); H01F 41/02 (2013.01); C22C 2202/02 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A non oriented electrical steel sheet comprising a silicon steel sheet and an insulation coating, characterized in that
the silicon steel sheet contains, as a chemical composition, by mass %,
0.01 to 3.50% of Si,
0.001 to 2.500% of Al,
0.01 to 3.00% of Mn,
0.0030% or less of C,
0.180% or less of P,
0.003% or less of S,
0.003% or less of N,
0.002% or less of B,
0 to 0.05% of Sb,
0 to 0.20% of Sn,
0 to 1.00% of Cu,
0 to 0.0400% of rare earth metal (REM),
0 to 0.0400% of Ca,
0 to 0.0400% of Mg, and
a balance consisting of Fe and impurities, and
an alignment degree to {5 5 7}<7 14 5> orientation in a central area along a thickness direction of the silicon steel sheet is 12 to 35.