Heat treatment effects on the mechanical properties and cold resistance of medium-carbon medium-alloyed high-strength steels

The paper studies heat treatment effects on the mechanical properties and cold resistance of medium-carbon, medium-alloyed high-strength cold-resistant steels. Kind of changes in strength and plastic properties depending on the tempering temperature have been revealed. It has been established, that tempering in the temperature range 560–580°C provides an optimal combination of strength and plastic properties and makes it possible to increase the cold resistance of the steel.