1. Introduction:
It is the grey lumpish solid. It has very strong stabilities and does not place any chemical reaction in the dry air.
2. Usage:
The ferro silicon is used extensively in the steel-making, casting non-ferrous metals and other industrial production; It is the good deoxidizer and most steel kind use the Ferro Silicon for Deoxidization;In steel smelting; It is used to sedimentary accretion and expanding deoxidizing; It is used to prove the strength, hardness and elasticity of steel greatly in steel casting.
3. Specifications:

Composition
Si Al C S P
%(≥) ??? %(≤)
75 0.5-1.0 0.20 0.02 0.04
75 1.5-2.0 0.20 0.02 0.04
Si72# 72 1.5-2.0 0.20 0.02 0.04
Si70# 70 1.5-2.0 0.20 0.02 0.04
Si65# 65 2.0 0.20 0.02 0.04
Size In Lump & Powder 10-50mm, 50-100mm, 10-100mm, 50-150mm, 90%min; 1-3mm, 2-4mm, 2-6mm, 90%min, or at customer’s option;
Packing In 1000kgs big bag;