CAST IRON FOR CUTTING DISKS Russian patent published in 1995 - IPC

FIELD: metallurgy. SUBSTANCE: cast iron has additionally magnesium at the following ratio of components, wt.-% carbon 2.7-3.3; silicon 1.7-2.2; manganese 0.25-0.7; phosphorus 0.01-0.2; chrome 0.1-0.3; copper 0.6-0.8; molybdenum 0.2-0.4; titanium 0.02-0.05; rare-earth metals 0.01-0.02; magnesium 0.005-0.015, and iron the rest, impurity is sulfur. EFFECT: enhanced quality of cast iron as a result of magnesium addition. 2 tbl