LOW-ALLOYED CASTING STEEL Russian patent published in 1996 - IPC

FIELD: ferrous metallurgy; particularly, low-alloyed casting steel with higher physico- mechanical properties without complicate thermal treatment using for production of castings in various branches of industry connected with recovery and refining of oil and gas where casting articles used in media, provoking corrosion cracking, such as hydrogen sulfide and sea water. SUBSTANCE: low-alloyed casting steel comprises the following components, mas. %: carbon, 0.11-0.13; manganese, 1.7-2.1; silicon, 0.17-0.37; chromium, 0.8-2.5; oxides of rare-earth metals, 0.04-0.1; molybdenum, 0.2-0.6; titanium, 0.3-1.5; iron, the balance. EFFECT: higher quality. 2 tbl