Silicon-calcium Alloy Lump 10-100mm Used for Iron and Steel Smelting Industry Made in All Models Calcium Silicon Alloys

Product Detail

Silicon-calcium Alloy Lump 10-100mm Used For Iron And Steel Smelting Industry Made In All Models Calcium Silicon Alloys

Calcium silicon alloy

Or called Ferro Calcium Silicon alloy

Main application: As potent deoxidizer and desulfurizer in the manufacturing of high grade steel, low carbon steel, stainless 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.  Also been 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 aluminium 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. As a sulphide former, Calcium Silicon alloy promotes random distribution of sulfides, thereby minimizing chain-type inclusions.



Chemical specification of Ferro Silicon Calcium:

Item No	Ca	Si	C	Al	P	S	O	Si+Ca
Ca31Si60	31%Min	58%-65%	0.8 Max	1.4%Max	0.04%Max	0.05%Max	2.5%Max	90% Min
Ca28Si60	28%Min	58%-65%	0.8 Max	1.4%Max	0.04%Max	0.05%Max	2.5%Max	90% Min
Ca24Si60	24%Min	58%-65%	0.8 Max	1.4%Max	0.04%Max	0.06% Max	2.5Max	90% Min

Shape

In lumps :10-100mm irregular blocks or 10-80mm 

Packing terms

In big plastic bag, 1.2mts per bag