CARBOFERAL - ALLOY OF SECONDARY ALUMINIUM FOR STEEL DEOXIDATION

摘要

The invention relates to metallurgy, in particular to the production of ferroalloys and relates to an alloy for steel deoxidation. The alloy comprises, w/w: aluminium – 10-40, carbon – 2.5-7.0, manganese – 5-15, silicon – 1.5-11.5, titanium – 0.5-5.0, chromium – 1.5-3.0, calcium – 1.5-7.0, magnesium – 1.5- 5.0, and also regulated content of metals (copper, zinc, tin, lead, stibium and bismuth) and impurities (sulfur and phosphorus) in quantity not more than 3.0-5.0 and 0.05-0.10 correspondingly. Technical result: increasing of recovery of aluminium at preliminary deoxidation in 2 times.