硅铁粒 宁夏 各种

材质	FeSi75-A	产地	宁夏
粒度	各种

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;