Ferro silicon is a kind of ferro alloys which is integrated of silicon and iron. The ratio of the two chemical substances are combined different, with the proportion of silicon ranging anywhere between 15% and 90% . The most widely used is 75% ferrosilicon. This alloy is also known by the name of ferro silicium. Its identification has known by CAS Number: 8049-17-0 and its chemical formula is “FeSi”.Because silicon and oxygen are easy to synthesize silicon dioxide, silicon iron is often used as deoxidizer when making steel, and because SiO2 produces a lot of heat, it also can improve the temperature of steel.

Specification of Ferro Silicon

Grade Si Al C S P
FeSi72 72%min 2.0%max 0.2%max 0.02%max 0.04%max
FeSi75 75%min 2.0%max 0.2%max 0.02%max 0.04%max
FeSi75 Low Al 75%min 1.0%max
0.5%max
0.1%max
0.1%max 0.02%max 0.04%max
Ferro Silicon is the main products of ferro alloys, we can also provide Ferro Chrome, Calcium Silicon and other products.

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