NITROGEN-CONTAINING SUPERLOW-CARBON AUSTENITIC STEEL 02KH25N22AM2

At present the equipment for manufacturing carbamide mineral fertilize rs is produced from domestic steel 03Kh17N14M3 having ''carbamide qual ity.'' Imported equipment also used in the industry is produced from s teel of the 25-22-2 (Cr-Ni-Mo) type shipped by various firms, namely, 2RE69 (Sandvik, Sweden), 254SFER (Avesta, Sweden), 2522LCN (VDM, Germa ny), DM 1.4466 (Germany), and X2CrNiMo 25-22-2 (Dalmine, Italy). The i mported steels are used because in some units steel 03Kh17N14M3 does n ot provide the requisite corrosion resistance in an intensified proces s of carbamide manufacturing. We currently possess domestic high-alloy ed steel for producing new and repairing imported equipment operating under the severe conditions of carbamide synthesis. The present paper concerns the structure, mechanical properties, and corrosion resistanc e of industrially produced steel 02Kh25N22AM2 (ChS-108) and the recomm ended range of its application.