FIELD: steels with compositions suitable for manufacture of reactors, pipes, furnaces or their components used in petrochemical processes. SUBSTANCE: steel contains components in the following ratio, wt.%: carbon, approximately 0.05; silicon, 2.5-5; chromium, 10-20; nickel, 10-15; manganese, 0.5-1.5; aluminum, not more 0.8; iron, the balance. EFFECT: possibility of use of steels for manufacture of pipes, plates, reactors or their some components, or for lining of internal walls of furnaces, reactors or pipes where coke may form. 3 dwg, 2 tbl
