Silicon calcium is not called calcium silica, containing calcium 22 to 35%, silicon 60 to 65%. YB 525-65 specifies no less than 31%, 28% and 24% calcium content. It is mainly used as a incubator for cast iron. Silicon calcium alloy has a strong reduction ability and is also used as an oxygen at high-quality steel.

Specification of Calcium Silicon 

Grade Ca Si C Al S P
Ca30Si60 30%min 58-65% 1.0%max 1.4%max 0.05%max 0.04%max
Ca28Si55 28%min 55-65% 1.0%max 1.4%max 0.05%max 0.04%max
Calcium Silicon is the main products of ferro alloys, we can also provide Ferro Chrome, Ferro Silicon and other products.