MODIFYING AGENT FOR CAST IRON

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FIELD : metallurgy.SUBSTANCE : invention relates to modifying agent compositions used in production of gray cast iron. Modifying agent comprises the following components, wt.-% : silicon, 10-20; calcium, 3-5; barium, 0.3-0.8; copper, 5-7; nickel, 12-18; zirconium, 2-4; rare-earth metals, 4-5; magnesium, 0.5-1; titanium, 10-20, and iron, the balance. Invention provides enhancing quality of cast iron articles based on their enhanced strength.EFFECT : improved and valuable properties of cast iron.1 tbl