Calcium silicon or #calciumsilicon alloy is obtained from silica, lime and coke in a strong reducing atmosphere at 1500-1800 degrees. Calcium silicon or ferro silicon calcium is a composite alloy composed of elements silicon, calcium and iron. It is an ideal composite deoxidizer and desulfurizer. It is widely used in the production of steel, low carbon steel, stainless steel and other steel types and special alloys such as nickel-based alloys and titanium-based alloys; it is also suitable as a temperature increasing agent for converter steelmaking workshops; it can also be used as an inoculant for cast iron and additives in the production of ductile iron.

Applications of Calcium Silicon Alloy
1. Steelmaking
The most widespread use of calcium silicon alloy is in steelmaking, where it serves as a deoxidizer and desulfurizer. It not only improves the quality of the steel but also enhances its workability and reduces production costs. Particularly in the production of special steel grades, calcium silicon alloy is an indispensable material.
2. Foundry Industry
In foundry processes, calcium silicon alloy is often used as an inoculant, improving the graphite structure in castings, reducing casting defects such as shrinkage and porosity, and enhancing the density and mechanical properties of the castings. This is particularly important for casting complex shapes and high-requirement parts.
3. Alloy Steel Production
Calcium silicon alloy is also a key material in producing high-strength alloy steels and stainless steels. It not only serves as an effective deoxidizer but also introduces appropriate amounts of calcium and silicon into the alloy, enhancing the steel's corrosion resistance and high-temperature performance.

The alloy is classified based on calcium content, such as SiCa30-Ca1 (30% Ca, 90% Ca+Si) and SiCa28–Ca2(28% Ca, 80% Ca+Si). Additionally, multi-element alloys like Si-Ca-Al, Si-Ca-Mn, and Si-Ca-Fe can be created by adding other elements to the silicon-calcium alloy.

As a professional ferroalloy manufacturer and supplier, Hongshun Industry is dedicated to providing high-quality calcium silicon alloy products to global customers. Our calcium silicon alloy products are stable in composition and high in purity, with customizable content and granularity to meet customer requirements. Whether in steelmaking or foundry applications, our calcium silicon alloy offers ideal solutions to help customers improve production efficiency and product quality.
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