Ferro Alloy Series

Ferro Silicon

Product description: Origin: Inner Mongolia, Ningxia, Qinghai, Gansu, Shanxi etc. in China. Export to Korea, Japan, India, Tailand etc.
INQUIRY

Ferrosilicon is an alloy of iron and silicon with between 15 and 90% silicon. It contains a high proportion of iron silicides. Its melting point is about 1200 °C to 1250 °C with a boiling point of 2355 °C. It also contains about 1 to 2% of calcium and aluminum.

Ferrosilicon is used in steelmaking and foundries as a source of silicon in production of carbon steels, stainless steels, and other ferrous alloys for its deoxidizing properties, to prevent loss of carbon from the molten steel (so called blocking the heat); ferromanganese, spiegeleisen, silicides of calcium, and many other materials are used for the same purpose. It can be used to make other ferroalloys. Ferrosilicon is also used for manufacture of silicon, corrosion-resistant and high-temperature resistant ferrous silicon alloys, and silicon steel for electromotors and transformer cores. In manufacture of cast iron, ferrosilicon is used for inoculation of the iron to accelerate graphitization. In arc welding, ferrosilicon can be found in some electrode coatings.

Ferro Silicon Chemical Composition (%) 硅铁化学成分（%）
Type牌号	Si硅	Al铝	C碳	S硫	P磷
Type牌号	Si硅	Max.
FESI90AL1.5	87.0-95.0	1.5	0.2	0.02	0.04
FESI90AL3	87.0-95.0	3	0.2	0.02	0.04
FESI75A10.5-A	74.0-80.0	0.5	0.1	0.02	0.035
FESI75A10.5-B	72.0-80.0	0.5	0.2	0.02	0.04
FESI75A11.0-A	74.0-80.0	1	0.1	0.02	0.035
FESI75A11.0-B	72.0-80.0	1	0.2	0.02	0.04
FESI75A11.5-A	74.0-80.0	1.5	0.1	0.02	0.035
FESI75A11.5-B	72.0-80.0	1.5	0.2	0.02	0.04
FESI75A12.0-A	74.0-80.0	2	0.1	0.02	0.035
FESI75A12.0-B	74.0-80.0	2	0.1	0.02	0.04
FESI75A12.0-C	72.0-80.0	2	0.2	0.02	0.04
FESI75-A	74.0-80.0		0.1	0.02	0.035
FESI75-B	74.0-80.0		0.1	0.02	0.04
FESI75-C	72.0-80.0		0.2	0.02	0.04
FESI65	65.0-<72.0			0.02	0.04
FESI45	40.0-47.0			0.02	0.04
Size 尺寸	10-50 Mm, 90% Min. 10-50 Mm 90%以上
Packing 包装	In big bags of 1000 Kgs net each. 吨袋包装，每包净重1000公斤。