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Calcium silicon cored wire is an alloy material composed of calcium silicon alloy powder encased in a metal steel strip. The primary components of calcium silicon alloy powder are calcium and silicon. Silicon serves as a strong deoxidizer, while calcium has potent reducing properties. Calcium reacts with deoxidation products (such as alumina) in molten steel, forming low melting point calcium aluminate inclusions, which helps reduce oxides in the steel and purifies the molten steel. So, calcium silicon cored wire is widely used in steelmaking, casting, and metal heat treatment processes.
Composition table：
| Grade | Si（%） | Ca （%） | C （%） | Al （%） | P （%） | S （%） |
| Ca28Si50 | 50 | 28 | 1.00 | 1.4 | 0.04 | 0.05 |
| Ca28Si55 | 55 | 28 | 1.00 | 1.4 | 0.04 | 0.05 |
| Ca30Si55 | 55 | 30 | 1.00 | 1.4 | 0.04 | 0.05 |
| Ca30Si60 | 60 | 30 | 0.80 | 1.4 | 0.04 | 0.05 |
Calcium (Ca):
Percentage: 28-30%
Function: Calcium plays a vital role in desulfurization and deoxidation processes. It helps remove impurities such as sulfur and oxygen from molten steel, resulting in a cleaner and more refined product. Additionally, calcium aids in modifying non-metallic inclusions, enhancing the mechanical properties of steel.
Silicon (Si):
Percentage: 50-60%
Function: Silicon acts as a deoxidizer, removing oxygen from molten steel to prevent oxidation. It also contributes to the steel’s strength and durability by forming strong chemical bonds with other elements.
Additional Elements:
Depending on the specific application and requirements, calcium silicon cored wire may also contain trace amounts of other elements such as carbon (C), aluminum (Al), and iron (Fe). These elements are added to optimize the performance of the cored wire in various steelmaking processes.
Improved Steel Quality: The inclusion of calcium and silicon in the cored wire enhances the purity and mechanical properties of steel, making it more suitable for demanding applications.
Efficiency: The cored wire design allows for precise delivery of calcium and silicon into the molten steel, ensuring uniform distribution and maximizing the refining effects.
Cost-Effective: By improving the efficiency of the steelmaking process and reducing impurities, calcium silicon cored wire helps lower production costs and increase overall productivity.
Calcium silicon cored wire is important in steelmaking, offering significant benefits in refining and enhancing steel quality. Understanding its composition and functions helps industries optimize their production processes and achieve superior steel products.
For more information on our range of calcium silicon cored wire products, please contact our sales team. hnty@ayxingsheng.com
