Abstract
1. Use of the thermomechanical treatment of structural steels to a pearlitic structure (TMTp) in the production cycle for cold-rolled (cold-drawn) steel (following the scheme: TMTp→ cold deformation→ recrystallizing anneal) yields a microstructure with globular carbides which possesses increased ductility. 2. Annealing by means of the heat introduced prior to rolling, and slow cooling from the final rolling temperature (780°C), also result in the formation of globular carbides, but with somewhat lower ductility than after TMTp. 3. TMTp increases the resistance of structural steels in the quenched and tempered condition to fracture in impact bending.
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