ferro silicon
70#, SI: 70%MIN AL: 2.0%MAX C:0.2%MAX S:0.02%MAX P:0.04%MAX
72#, SI:   72%MIN AL:2.0%MAX C:0.2%MAX S:0.02%MAX P:0.04%MAX
75#  SI:   75%MIN AL:20.%MAX C:0.2%MAX S: 0.02%MAX P: 0.04%MAX
packing: 1MT/BIG BAG
szie:10-50mm 50-100mm and other size
china origin
used as deoxidizer and consituent in steel-marking industry
used as inoculant and noduizer in iron casting industry
used as reducer in ferro alloy production
used as suspendedphase in mineral separation industry