In this research, the structural state and mechanical properties of nine pilot batches of HC340LA cold-rolled steel, annealed in bell-type furnaces from the steel of two melts of different compositions using Nb or Ti microalloying, were studied. From the obtained results, the uniformity and stability of the structure and properties of rolled products were significantly improved both in each pilot batch and in the transition from batch to batch compared with those of mass-produced cold-rolled steel grade HC340LA while reducing costs. Methods for further improving the efficiency of the integrated technology for the production of HC340LA rolled products according to EN 10268 were determined.
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Translated from Metallurg, Vol. 67, No. 3, pp. 13–18, March, 2023. Russian https://doi.org/10.52351/00260827_2023_03_13.
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Zaitsev, A.I., Dagman, A.I., Koldaev, A.V. et al. Justification of the Production Technology Efficiency for High-Strength, Low-Alloy Steels with Improved Properties and Quality at Low-Cost. Part 2. Cold-Rolled Products. Metallurgist 67, 265–272 (2023). https://doi.org/10.1007/s11015-023-01513-4
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DOI: https://doi.org/10.1007/s11015-023-01513-4