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Electric Isotropic Steel with Rated Magnetic Permeability, Coercive Force, High Magnetic and Mechanical Properties, and Improved Flatness

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Abstract

During the development of a technology for the production of medium-alloyed, cold-rolled electric isotropic steel with a silicon content of Si < 2.1% and phosphorus additions P > 0.02% as well with rated magnetic, mechanical properties and improved flatness, the effect of decarburizing-recrystallization annealing modes on the content of final carbon and grain size of finished steel has been studied. Maintaining the degree of humidification of nitrogen-hydrogen gas at a dew point of at least +31°C ensures deep decarburization of cold-rolled strips to a carbon content of less than 0.005%. The influence of parameters of the metal cooling mode during the decarburization-recrystallization annealing of cold-rolled steel on the non-flatness of the annealed strips is considered.

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Authors and Affiliations

  1. PJSC Novolipetsk Metallurgical Company, 398040, Lipetsk, Russia

    S. S. Degtev, D. V. Barybin, A. V. Kuzmin & A. A. Uvarkin

  2. Lipetsk State Technical University, 398050, Lipetsk, Russia

    A. I. Bozhkov

  3. Baikov Institute of Metallurgy and Materials Science of the Russian Academy of Sciences, 119334, Moscow, Russia

    V. S. Yusupov

Authors
  1. S. S. Degtev
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  2. D. V. Barybin
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  3. A. V. Kuzmin
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  4. A. A. Uvarkin
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  5. A. I. Bozhkov
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  6. V. S. Yusupov
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Corresponding author

Correspondence to S. S. Degtev.

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Translated by M. Astrov

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Degtev, S.S., Barybin, D.V., Kuzmin, A.V. et al. Electric Isotropic Steel with Rated Magnetic Permeability, Coercive Force, High Magnetic and Mechanical Properties, and Improved Flatness. Steel Transl. 53, 363–367 (2023). https://doi.org/10.3103/S096709122304006X

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  • DOI: https://doi.org/10.3103/S096709122304006X

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