Factory Direct Ferro Silicon Slag

Ferro Silicon Slag, also called FeSi Slag, is a by-product derived from the smelting of Ferro Silicon alloys. Despite being a secondary product, it contains a significant proportion of residual silicon and other beneficial trace elements. Due to its chemical properties, Ferro Silicon Slag is widely used as a substitute for Ferro Silicon in steelmaking, foundry, and casting processes, especially where cost control is critical.

🔹 High Silicon Residue – Even as a slag product, it delivers effective alloying and deoxidation.
🔹 Cost-Effective – A budget-friendly substitute for Ferro Silicon in various metallurgical applications.
🔹 Custom Particle Sizes – Available in various granulometries to suit specific furnace needs.
🔹 Easy to Use – Good melting performance and handling properties in steel and iron melts.
🔹 Environmentally Friendly – Reuses smelting by-products, promoting sustainable manufacturing.

✅ Yes, Ferro Silicon Slag is widely used as a deoxidizing agent in steelmaking. Thanks to its remaining silicon content, it reacts efficiently with dissolved oxygen in molten steel, helping improve steel purity, reduce slag viscosity, and enhance casting performance. It is particularly suitable for general-grade steel and foundry iron applications.

The ideal silicon content in Ferro Silicon Slag depends on the specific application, but commonly ranges from 25% to 35% for general steelmaking use. Higher silicon content (up to 50%) is often preferred when targeting stronger deoxidation effects or when replacing more expensive ferroalloys.

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