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Calcium Silicon Alloy

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Calcium-Silicon Alloys are used as deoxidizer and desulfurizer in the manufacturing of high grade steel.Â Indeed, Calcium and Silicon both have a strong chemical affinity for oxygen.Â Especially calcium, have a strong chemical affinity not only for oxygen, but also for sulphur and nitrogen.Â 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.

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Calcium Silicon Alloy is used as a deoxidizer and desulfurizer in the manufacturing of high grade steel. Calcium and silicon both have a strong chemical affinity for oxygen, and calcium also has a strong affinity for sulphur and nitrogen. The steel industry accounts for around 90% of global CaSi consumption. The alloy modifies non-metallic inclusions, controlling the shape, size, and distribution of oxide and sulfide inclusions to improve fluidity, machinability, ductility, and impact properties. Calcium liquefies suspended solid inclusions of aluminium oxide, a principal source of fatigue failure in highly stressed alloy steels, transforming Al2O3 into CaO:Al2O3. Calcium aluminates formed are largely undeformable in solidified steel, maintaining high isotropy of material properties after working. Calcium Silicon can be obtained in lump, crushed, or powder form. The most widely used method for integrated steel applications is cored wire, as calcium has low density and high reactivity in the ladle, making it difficult to introduce and retain in the melt; cored wire eliminates these variables by blowing CaSi powder deep into the steel melt through immersion of steel tubes.

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Henan Mingshan Industry Charge Co., Ltd. is a B2B supplier based in China, listed on Global Trade Plaza since October 2026. Use Inquire now or Chat with supplier to ask Henan Mingshan Industry Charge Co., Ltd. for prices, specifications and documents for Calcium Silicon Alloy.

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Member since - Oct 2026
Business Type - Contact Seller
Deals in Product Type - Agriculture
Country - China

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