Non-oriented electrical strip and process for its production

Details Non-oriented electrical strip and process for its production Non-oriented electrical strip and process for its production

C - Chemistry, Metallurgy

22

C

75/150, 148/8, 1

C22C 38/06 (2006.01) C21D 8/12 (2006.01) C22C 38/02 (2006.01) H01F 27/25 (2006.01) H01F 41/02 (2006.01)

Patent

CA 2031579

The invention relates to a non-oriented electrical strip having high proportions of cube or cube on face texture, a polarization of J 2500 > 1.7 T and a low core loss, and also to a process for its production. A steel slab, containing max. 0.025 % C, less than 0.1 % Mn, 0 to 0.15 % boundary-surface-active elements and Si and Al in such a way that the relations (%Si) + 2(%A1) > 1.6 % and (%Si) + (%Al) < 4:5 % are met, balance iron, is hot rolled to a thickness not lower than 3.5 mm. The resulting hot rolled strap is then cold rolled with a degree of reduction of at leash 86 % without intermediate recrystallization annealing and, if necessary, final annealed.

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