Calcicum Silicon
Your Professional Calcicum Silicon Supplier
Our goal is to become your true partner in the field of calcicum silicon in China. Henan Tieyao Trading Co., Ltd. is a premier manufacturer specializing in high-quality ferroalloys. We have a skilled engineering team dedicated to refining every stage, from product development and process improvement to production oversight, ensuring every product delivered meets rigorous quality and performance standards. The price is competitive and the product is quality-assured, which is a good choice for your long-term cooperation.
Our services:
In the pre-sales stage, our team of experts will recommend the most suitable products according to the needs of customers and provide detailed technical consultation. During the sales period, we ensure timely delivery and provide installation guidance. For after-sales, we provide long-term technical support, warranty services and spare parts to help customers maximize the use of products and get reliable maintenance during use.
Production market
Our products are well-known in the industry and exported to many countries such as Japan, South Korea, India, Russia, Germany, Turkey, Morocco, South Africa, etc.
Reliable supply and customization
We provide customized solutions with customizable specifications and sizes to meet unique customer requirements.
Our certification
We are ISO 9001:2015 and ISO 14001:2015 certified, ensuring that our products meet the highest standards of quality management and environmental responsibility.
Advantages of Calcicum Silicon
Cost-effectiveness
While aluminum provides excellent deoxidizing performance, it tends to be more expensive and less efficient in terms of inclusion control. In contrast, calcium silicon offers superior inclusion modification properties at a lower cost, making it ideal for large-scale steel production where economic efficiency is crucial.
Calcium silicon contributes to the improvement of mechanical properties in steel
Including enhanced toughness, ductility, and fatigue resistance. These benefits are particularly valuable in the production of high-strength low-alloy (hsla) steels, structural steels, and other specialty grades used in demanding environments.
Specification of Calcicum Silicon
|
Grade |
Ca |
Si |
Al |
C |
P |
S |
|
|
≥ |
≤ |
||||
|
Ca28Si50 |
28 |
50 |
2.4 |
1 |
0.04 |
0.05 |
|
Ca30Si50 |
30 |
50 |
2.4 |
1 |
0.04 |
0.05 |
|
Ca28Si55 |
28 |
55 |
2.4 |
1 |
0.04 |
0.05 |
|
Ca30Si55 |
30 |
55 |
2.4 |
1 |
0.04 |
0.05 |
|
Ca28Si60 |
28 |
60 |
2.4 |
1 |
0.04 |
0.05 |
|
Ca30Si60 |
30 |
60 |
2.4 |
1 |
0.04 |
0.05 |
|
Other specifications can be customized. Size 10-80mm 0-3mm or customized. |
||||||
Calcium silicon alloy, often referred to as CaSi alloy, is primarily composed of calcium and silicon, with typical compositions ranging from 24% to 31% calcium and 55% to 65% silicon. This unique combination results in a material with a relatively low melting point—between 980°C and 1200°C—enabling it to be easily introduced into molten steel during refining operations.
One of the key characteristics of calcium silicon alloy is its strong affinity for oxygen and sulfur. This property allows it to act as a powerful composite deoxidizer and desulfurizer, effectively reducing non-metallic inclusions in the final product. Additionally, due to its high vapor pressure, CaSi alloy contributes to the modification of oxide and sulfide inclusions, improving the morphology and distribution of these compounds within the steel matrix.
Application of Calcicum Silicon
Steelmaking
Removes oxygen and sulfur. Modifies inclusions for improved steel quality and cleanliness.
Cast iron production
Improves machinability and refines grain structure.
Cored wire production
Commonly used as core material in casi cored wire for precise addition into molten metal.
Raw materials: Lime (cao): Source of calcium. Silica (sio₂): Source of silicon. Carbon (c): Usually in the form of coke or coal, which serves as a reducing agent.
Reduction process: The process is carried out in an electric arc furnace, where lime, silica, and carbon are added together. In the high-temperature environment, chemical reactions occur. The carbon reduces the silica to produce silicon:Sio₂ + 2c → si + 2co. Simultaneously, calcium is produced by reducing lime With carbon: Cao + c → ca + co.
Formation of calcium silicon: Once calcium and silicon are produced in the furnace, they combine to form calcium silicon (casi) alloy. The alloy is then tapped from the furnace.
Casting and cooling: After tapping, the molten calcium silicon alloy is poured into molds, where it solidifies. The solid alloy is then broken into smaller pieces for further use in steelmaking.
Packing and Shipping of Calcicum Silicon
|
Packing |
Jumbo bags or as per customer requirements |
|
Shipping |
Shipped by road, sea, rail |