The characteristics: Reduce the cost of steelmaking, increase economic efficiency, improve product quality, stable performance, improve the quality of molten steel, improve product performance, reduce the amount of alloy added, reduce the cost of steel and increase economic efficiency.
Silicon carbon alloy instead of ferrosilicon, silicon carbide, recarburizer, reducing the amount of oxygen scavenger, a converter for deoxidizing alloy, the effect of stability, steel chemical composition, mechanical properties and internal quality are better than the traditional process.
By testing and production shows that using Si-C alloy to converter deoxy-alloy process, greatly reduce the cost of steel, creating considerable economic benefits, improve the market competitiveness of steel.
The effect of using a silicon-carbon alloy species
1, can replace ferrosilicon and carburant, FeALSi dosage is also reduced, can effectively reduce the cost of steel 6-10 yuan / ton steel
2, smelting carbon steel, special steel and some low-alloy steel, the effective recovery of effective elements.
Ferro silicon is used as an essential alloy in the production of steel and cast iron. Ferro silicon is used to remove oxygen from steel and as alloying element to improve the final quality of the steel. Ferro silicon can also be the basis for manufacture of pre-alloys like magnesium ferro silicon (fesimg), used for modification of melted malleable iron.
Main markets are the worldwide producers of alloyed, stainless and carbon steel. One of the fastest growing categories within steel is the stainless sector, in both flat and long products. Stainless steel has a specific consumption of ferro silicon 510 times higher than regular carbon steel.
Special ferro silicon grades, like low al, high purity and low c ferro silicon, are used in the production of special steel qualities. Compared to regular ferro silicon, special grades of ferro silicon will help to keep both the content of inclusions and the carbon content in the final steel at very low levels.
Ferro silicon is produced in submerged arc furnaces, using as raw material high-purity quartz, charcoal and iron ore.
The main grades our products cover:
Grade
Si Fe(max)Al(max)Ca(max)P(max)
553
98.5%min
0.50%
0.50%
0.30%
441
99% min
0.40%
0.40%
0.10%
421
99.2% min
0.40%
0.20%
0.10%
3303
99.3% min
0.30%
0.30%
0.03%
50ppm
2202
99.5% min
0.20%
0.20%
0.02%
40ppm
Packing: In 1mt big bags
Shipment: With in 15 days after comfirming the order
Apperance:Dark gray
Physical Property: High melting point and resistivity, good heat resistance and good anti-oxidation effect.
Particle Size: (10-100)mm.
Application and use:
1. Used in aluminum: An additive to aluminum alloys, silicon is used to increase the fluidity and tenacity of Aluminum and its alloys, which enjoy good castability and weldability accordingly.
2. Used in organic chemicals: Silicon metal is used in manufacturing a number of sorts of silicones, resins, and lubricants.
3. Used in electronic parts: Silicon metal is used in producing monocrystalline and polycrystalline silicon of high purity for electronic parts, such as semi conductors, etc.
Silicon carbide (sic), also known as carborundum, is a compound of silicon and carbon with chemical formula sic. It occurs in nature as the extremely rare mineral moissanite. Silicon carbide powder has been mass-produced since 1893 for use as an abrasive. Grains of silicon carbide can be bonded together by sintering to form very hard ceramics  that are widely used in applications requiring high endurance, such as car brakes, car clutches and ceramic plates in bulletproof vests. Electronic applications of silicon carbide as light-emitting diodes (leds) and detectors in early radios were first demonstrated around 1907. Today sic is used in semiconductor electronics applications that are high-temperature, high-voltage or both. Large single crystals of silicon carbide can be grown by the lely method; they can be cut into gems known as synthetic moissanite. Silicon carbide with high surface area can be produced from sio2 contained in plant material.
Calcium-Silicon Alloys are used as deoxidizer and desulfurizer in the manufacturing of high grade steel. Indeed, Calcium and Silicon both have a strong chemical affinity for oxygen. Especially calcium, have a strong chemical affinity not only for oxygen, but also for sulphur and nitrogen. The steel industry accounts for around 90 % of global CaSi consumption.
The alloy is also used for the modification of non-metallic inclusions. Calcium Silicon is used to control the shape, size and distribution of oxide and sulfide inclusions improving fluidity, machinability, ductility, and impact properties of the steel product. The calcium liquefies the suspended solid inclusions of aluminium oxide), a principal source of fatigue failure in highly stressed alloy steels, that are always present in aluminum-killed steels (Al203 is transformed by Ca into CaO:Al2O3). Furthermore, the material properties of steel are improved: the calcium aluminates formed are largely undeformable in the solidified steel and allow high isotropy of the material properties to be maintained after working of the steel.
Calcium Silicon can be obtained in lump, crushed or powder form. The most widely used method for intergrated steel applications is in the form of cored wire. This is mainly because calcium has a low density and high reactivity in the ladle making it difficult to introduce and retain in the melt. Cored wire eliminates these variables: CaSi powder is blown deep into the steel melt through immersion of steel tubes.
