Steel Making Deoxidizing Silicocalcium Alloy SiCa Lump
Silicon Calcium Description
Silicon calcium alloy is mainly used for steel-making and cast iron production.The affinity of calcium and silicon with oxygen is very large, and
the deoxidation products are easy to float and easy to discharge.
So the deoxidizing steel liquid of silicon calcium alloy is pure.
When the high quality steel and special alloy are made, the silicon
calcium alloy is used as deoxidizer.
Calcium silicon can be produced by reacting calcium metal with
silicon dioxide at high temperatures, or by reacting calcium metal
with silica in the presence of aluminum or iron. The resulting
compound can be further processed to obtain different grades of
calcium silicon with varying silicon and calcium content, depending
on the specific application.
Specifications Silicon calcium
| Grade | Chemical Comoositions(%) |
| Si | Ca | S | P | C | Al | Fe |
| (Min) | (Max) |
| Si60Ca28 | 60 | 28 | 0.03 | 0.03 | 0.3 | 0.2-2.0 | Balance |
| Si60Ca30 | 60 | 30 | Balance |
| Si58Ca30 | 58 | 30 | Balance |
| Si55Ca28 | 55 | 28 | Balance |
| Si55Ca30 | 55 | 30 | Balance |
| Si50Ca30 | 50 | 30 | Balance |
| Si50Ca30 | 50 | 28 | Balance |
| Si40Ca10 | 40 | 10 | >=40 |
Silicon Calcium Function
Since calcium silicon has a strong affinity with oxygen, sulfur,
hydrogen, nitrogen and carbon in steel fluid, silicon calcium alloy
is mainly used for deoxidization, degassing and fixation of sulfur
in steel fluid. In the outside refining technology of steel, the
content of oxygen and sulfur in steel is reduced to very low by
desulphurization and desulphurization with silicon-calcium powder
or core wire. It can also control the sulfide from in steel and
improve the utilization rate of calcium. In the production of cast
iron, silicon calcium alloy not only deoxidizes and purifies, but
also plays an inoculating role, which is helpful to form fine or
globular graphite. The graphite distribution in gray cast iron is
uniform and the white tendency is reduced. And can increase
silicon, desulfurization, improve the quality of cast iron.
Packing & Delivery
Packing: 1 ton big bag, 20-25mt in 20' container
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