FIELD: metallurgy.
SUBSTANCE: invention can be used at fabrication of thin plates out of stamped or forged slabs by method of hot rolling. The source ingot is subject to preliminary hot rolling in (α+β)-region. The rolled ingot is heated to temperature of 50...150°C higher, than the temperature of polymorphic transformation, then it is held within 15...50 minutes and cooled at a rate of at least 50°C/min. Then the ingot is heated to the temperature of 60...180°C lower, than the temperature of polymorphic transformation, and rolled. Rolling is performed in lengthwise and cross directions against the direction of rolling of the source ingot. The total degree of deformation at rolling is at least 75%. The produced plate is subject to thermo treatment by means of annealing at a temperature of 700...850°C with holding within 30...90 minutes.
EFFECT: facilitating of production of items with fine grain structure and upgraded mechanical properties at minimal anisotropy.
2 dwg, 2 tbl, 2 ex
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