MASTERING OF PRODUCTION TECHNOLOGY OF SECTION HOT-ROLLED IRON WITH DIAMETERS 80, 90, 100, 120 MM OF STEEL OF BRAND 55SM5FA IN CONDITIONS OF RUP «BMZ»

Abstract

The task of mastering of bar production of bearing steel grades including steel 55SMFA was set to RUP «BMZ» in connection with increase of import-substituting bar steel grades. Satisfactory quality of metal-roll is achieved as a result of mastering of production technology of hot-rolled section iron