Calcium silicon or calcium silicon alloy is obtained from silica, lime and coke in a strong reducing atmosphere at 1500-1800 degrees. As a ferroalloy, it also contains different impurities such as iron, aluminum, carbon, sulfur, and phosphorus. It has the form of a lump or powder. Calcium silicon powder can also be made into calcium silicon cored wire.
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.
Calcium silicon not only has strong deoxidation ability, and the deoxidation products are easy to float and be discharged, but it can also improve the properties of steel and improve its plasticity, impact toughness and fluidity. It is used in the production of high-quality steel, special steel and special alloys.
Calcium Silicon (CaSi) Alloy Manufacturer from China
We are a professional calcium silicon (CaSi) supplier, manufacturer, and steelmaking deoxidizer material supplier from China, providing high-quality CaSi alloy for steelmaking and metallurgical applications. As a reliable China factory and exporter, we supply calcium silicon alloy to global markets including Russia and other CIS countries. Our calcium silicon is widely used in steelmaking deoxidation and ladle refining processes, with stable quality and competitive factory prices for bulk orders.
- Ca28Si55 / Ca30Si60 stable quality
- Steelmaking and ladle refining use
- Export to Russia, Kazakhstan and CIS countries
- Factory direct supply
- Fast quotation within 12 hours
Calcium silicon composition
| Model | Chemical composition (%) | |||||
| Si | Ca | C | AI | P | S | |
| ≥(min) | ≤(max) | |||||
| Ca28Si50 | 50 | 28 | 1.0 | 1.4 | 0.04 | 0.05 |
| Ca30Si50 | 50 | 30 | 1.0 | 1.4 | 0.04 | 0.05 |
| Ca28Si55 | 55 | 28 | 1.0 | 1.4 | 0.04 | 0.05 |
| Ca30Si55 | 55 | 30 | 1.0 | 1.4 | 0.04 | 0.05 |
| Ca30Si60 | 60 | 30 | 1.0 | 1.4 | 0.04 | 0.05 |
Silicon calcium alloy element
If you want to learn the uses of calcium silicon alloy, you must first start with the elements it contains. Calcium silicon alloy contains a certain proportion of silicon and calcium and other trace elements.
Silicon element in calcium silicon alloy
Silicon element is a commonplace element with a very wide range of applications. However, here in calcium silicon alloy, we only widely use it in the steelmaking industry. The silicon element inside the calcium silicon alloy can deoxidize molten steel very well and is a powerful deoxidizer. Because there will be a lot of oxygen in the molten steel during steelmaking, if there is too much oxygen, many oxides will appear, which will affect the quality of the steel. The silicon calcium alloy can quickly detach the oxygen in the molten steel to produce silicon dioxide, so it has the function of purification. The use of molten steel improves the quality of steel.
Calcium element in calcium silicon alloy
Calcium is an indispensable element in steelmaking. Its main purpose is to improve the fluidity of molten steel and improve the strength and cutting performance of finished steel. The use of silicon calcium alloy can effectively prevent the occurrence of valve blockage and better remove impurities in the molten steel. Exhaust improves the properties of the finished steel.
Trustable ferroalloy factory – HongShun
one-stop service
Types of calcium silicon
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.
- High-content calcium silicon alloy products, mainly produced by electrode furnaces
a: Can produce higher specifications of calcium silicon alloy products.
b: The product quality is stable and has few impurities. - Medium and low-content calcium silicon alloy products are mainly produced using intermediate frequency furnaces.
a: Mainly produces medium and low specification calcium silicon alloy products
b: The production cost is low and the output can be flexibly controlled.
Advantages of calcium silicon
- Stable response during handling operations and easy to use.
- Uniform chemical cost, excellent performance and low impurity content.
- There are many product varieties and specifications to meet the needs of users.
focus on ferroalloy production, quality first!
Leave your requirements, FREE quotation!
call us: +8618837209569Calcium silicon alloy uses
- Application of calcium silicon alloy in steel metallurgy: Calcium silicon alloy is an important alloy additive in steel metallurgy. By adding calcium silicon alloy, the toughness and strength of steel can be increased, and the heat treatment properties of steel can be improved. Calcium silicon alloy can also reduce the sulfur content in steel and improve the quality and performance of steel.
- Application of calcium silicon alloy in the foundry industry: Calcium silicon alloy is widely used in the foundry industry. It can be used as a deoxidizer and added to casting materials to reduce the oxide content in castings and improve the quality of castings. In addition, calcium silicon alloy can also be used as a rare earth alloy additive for casting materials to improve the mechanical properties and surface quality of castings.
- Application of calcium silicon alloy in the metallurgical industry: Calcium silicon alloy is also widely used in the metallurgical industry. It can be used as a desulfurizer to remove sulfur from steel and iron during steelmaking and ironmaking. In addition, calcium silicon alloy can also be used as an alloy additive for smelting alloys to improve the hardness, strength and wear resistance of the alloy.
- Application of calcium silicon alloy in the electronic industry: Calcium silicon alloy also has important applications in the electronic industry. It can be used as a semiconductor material in the manufacture of electronic components, integrated circuits and solar cells. The electrical conductivity and stability of calcium silicon alloy make it an indispensable material in the electronics industry.
Production process of calcium silicon alloy
The production process of calcium silicon alloy is generally divided into three stages: ore beneficiation, ore reduction and alloy smelting.
- Ore beneficiation: The raw materials of silicon calcium alloy are mainly silica ore and calcium ore, such as limestone. First, the raw materials are beneficiated to remove impurities and improve their purity and reducibility.
- Ore reduction: After mineral processing, the materials undergo a reduction reaction to reduce the oxides to the original metal. This stage mainly decomposes the oxides in silicon ore and calcium ore into silicon and calcium through a high-temperature reduction reaction.
- Alloy smelting: The silicon and calcium obtained after ore reduction will be further smelted to make calcium silicon alloy. The smelting process mainly includes steps such as burning, roasting, smelting, and refining. Through these processes, the silicon and calcium in the alloy will become a new substance, a silicon calcium alloy.
