Silicon Metal 2202 is primarily used as a high-purity additive in critical industrial processes due to its strict composition (≥99.5% Si, Fe≤0.2%, Al≤0.2%, Ca≤0.02%, P≤0.004%). Its main applications include:
1. Aluminum Alloy Production: Enhances strength, hardness, and corrosion resistance in castings for automotive and aerospace components.
2. Steelmaking: Acts as an efficient deoxidizer, reducing oxygen content to improve steel purity and mechanical properties.
3. Chemical Synthesis: Serves as a raw material for silicones and specialty chemicals, where low calcium content prevents reaction interference.
4. High-Performance Alloys: Used in precision alloys requiring controlled trace elements to ensure stability under high temperatures.
Additionally, it supports refractory materials and semiconductor precursors, leveraging its thermal stability and purity.
| Property | Specification | Industrial Benefit |
| Purity (Si) | ≥99.5% | Reduces defects in alloys/chemicals |
| Low Calcium | ≤0.02% | Prevents side reactions in silicones |
| Controlled Fe/Al | Fe≤0.2%, Al≤0.2% | Maintains alloy ductility |
