FIELD: metallurgy, namely slag forming mixtures. SUBSTANCE: slag forming mixture for casting steel includes graphite, silicate lumps, fluorspar and dumping slag of ferroalloy production. Mixture includes in addition rice husk at next ratio of ingredients, mas.%: graphite, 2-20; silicate lumps, 10-20; fluorspar, 10-20; rice husk, 0.5-5; slag of ferroalloy production, the balance. EFFECT: enhanced quality of blank surface due to use of such mixture at casting process. 2 tbl
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