Production of flat electrical steel with superlow magnetic losses

The influence of the chemical composition of steel (its Al, Si, and Sb content) on its texture and magnetic properties is studied, with a view to developing a production technology for high-alloy isotropic electrical steel (containing up to 3% Si) with superlow magnetic losses ( P 1.5/50 ≤ 2.70 W/kg...

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Bibliographic Details
Published in:Steel in translation 2015-04, Vol.45 (4), p.279-282
Main Authors: Cheglov, A. E., Barybin, V. A., Yaroshenko, A. V., Bakhtin, S. V., Alymov, M. I., Yusupov, V. S., Parakhin, V. I.
Format: Article
Language:English
Subjects:
Chemistry and Materials Science
Electrical steels
Flatness
Magnetic properties
Materials Science
Silicon
Steels
Strip
Surface layer
Texture
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Summary:The influence of the chemical composition of steel (its Al, Si, and Sb content) on its texture and magnetic properties is studied, with a view to developing a production technology for high-alloy isotropic electrical steel (containing up to 3% Si) with superlow magnetic losses ( P 1.5/50 ≤ 2.70 W/kg for strip of rated thickness 0.50 mm and P 1.5/50 ≤ 2.50 W/kg for rated thickness 0.35 mm) and a high degree of flatness (nonplanarity class 1 according to State Standard GOST 21427.2, with discrepancies no greater than 2 mm). Alloying with aluminum and antimony improves the texture of the final steel and hence greatly reduces the magnetic losses. The influence of cold rolling and recrystallization annealing of the flatness of the final strip is discussed.
ISSN:0967-0912
1935-0988
DOI:10.3103/S096709121504004X