Abstract: | 1. | Rolling of ferritic class steel strip at 1000°C and higher results in the formation of strips with various structures in their cross section and is accompanied by a decrease of impact strength. | 2. | A satisfactory impact strength of hot-rolled 08Kh18Tl type steel sheet is obtained at temperatures below 950°C. | 3. | Improvement of the impact strength of hot-rolled 15Kh25T steel sheet can be achieved by organizing in the production flow rapid cooling of metal in the temperature range of the onset of 475-degree brittleness. | I. P. Bardin Central Scientific Research Institute of Ferrous Metallurgy. Chelyabinsk Metallurgial Combine. Translated from Metallovedenie i Termicheskaya Obratbotka Metallov, No. 5, pp. 41–43, May, 1991. |