calcium silicon wire supplier from henan star metallurgy material co.,ltd
2016-01-07
Description
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.
As a sulphide former, CaSi alloy promotes random distribution of sulfides, thereby minimizing chain-type inclusions.
Silicon-calcium alloy can replaces aluminium to accomplish the task of final deoxydation, and is used in the production of fine steel, special steel and special alloy. CaSi is indeed required in higher quality, higher strengh steels and alloy steels, which cannot tolerate the level of inclusions that remain following standard deoxidisation with ferrosilicon, silicomanganese or aluminium. For example, to turn out rail steel, mild steel, stainless steel, and special alloys such as nickel-based alloy and titanium-based alloy, which can be adopted Silicon-calcium alloy as deoxidant. Silicon-calcium alloy can also work as temperature-gaining agent in convertor steel making workshop , and as catalyst/inoculant in production of cast iron, as well as the additive in the production of nodular cast iron.
Speciafication
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alcium Silicon
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Chemical analysis
Al .................................................. <1,2
Ca ..................................................30/33
C ..................................................<0,7
Si ..................................................60/63
It is available with a variety C<0,1.
Commercial grain sizes:
Powdre of 0/0,08mm a 0/1,6mm
Grain: de 0,4/2mm a 20/60mm
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