Improvement of quality and improvement of technology of production of economic alloyed steels for power engineering

Purpose. Investigate the effect of complex microalloying with nitrogen, titanium and aluminum on structure properties cast steels at elevated temperatures. Methodology. Methods optical microscopy were used for metallographic analysis microstructure steels. The mechanical room temperatures determined static tension, crease impact bending. Results. technology carbonitride strengthening silicon-manganese production has passed pilot testing. results tests indicate a favorable 20GSL steel in entire range operating Scientific novelty. For first time, nano-dispersed phases (TiN, AlN) low-alloy GSL type (250-4500C) been investigated. Practical value. use heat-resistant electric provides an increase operational reliability, service life reduce metal consumption equipment power engineering. Keywords: technology, steel, heat resistance, reinforcement, microalloying, 20GSL.