High Purity 90% Silicon Carbide Lump 10-50mm for Steelmaking Furnace Additive
- Max Thermal Recovery: High-purity 90% SiC provides an intense exothermic reaction, significantly boosting furnace temperature without extra power.
- Heavy-Duty Lump Sizing: The 10-50mm robust structure ensures the material reaches the bottom of the scrap charge, preventing premature oxidation.
- Superior Deoxidation: Rapidly scavenges oxygen to produce cleaner steel with fewer non-metallic inclusions and improved internal soundness.
- Cost-Efficient Alloying: A high-density substitute for Ferrosilicon and high-carbon raisers, reducing total charge costs by up to 20%.
- ZhenAn Quality Assurance: Factory-direct supply with zero "fines" contamination and full ISO/SGS certification for high-volume steel plants.
In large-capacity Electric Arc Furnaces (EAF) and Basic Oxygen Furnaces (BOF), the physical integrity of additives is as vital as their chemistry. ZhenAn's 10-50mm SiC Lumps are engineered to survive the mechanical impact of heavy scrap charging. Once the melting phase begins, the high-purity SiC dissociates to provide a potent source of active Silicon and Carbon.
The primary reaction path in the furnace hearth is:
The resulting CO gas promotes a vigorous "boil" in the bath, which helps in the removal of hydrogen and nitrogen, leading to higher-quality steel grades.
By reducing iron oxides in the slag, SiC 90% lumps facilitate the creation of a consistent foamy slag. This foam shields the furnace refractories from the intense heat of the electrodes, drastically reducing energy loss and extending the life of the furnace shell.
The oxidation of Silicon Carbide is more exothermic than that of ferrosilicon. For mills looking to increase their scrap-to-hot-metal ratio, SiC 90% serves as a critical "heat riser," allowing for higher productivity and shorter tap-to-tap times.
ZhenAn SiC 90% contains negligible sulfur compared to metallurgical coke or anthracite. This allows steelmakers to hit tight sulfur specifications in high-performance alloy steels without the need for expensive secondary desulfurization.
The following table highlights the chemical and structural properties of ZhenAn 10-50mm SiC 90% Lumps, optimized for heavy industrial charging.
| Quality Indicator | Standard Specification | Physical Attribute | Details |
|---|---|---|---|
| SiC Purity (Min) | 90.00% | Size Distribution | 10 - 50 mm (95% Min) |
| Free Silicon (Si) | ≤0.8% | Lump Hardness | High (Low Friability) |
| Iron Oxide (Fe₂O₃) | ≤1.0% | True Density | 3.20 g/cm³ |
| Phosphorus (P) | ≤0.03% | Color | Dark Metallic Grey |
| Nitrogen (N) | ≤0.01% | Packaging | 1mt / 1.5mt Big Bags |
- Sizing Precision: Our lumps are dual-screened to ensure that fine particles (which can be lost to the furnace exhaust) are removed before shipping.
- Exothermic Consistency: With a guaranteed 90% purity, furnace operators can rely on a consistent thermal input for every ton added.
- Global Distribution: ZhenAn specializes in large-scale maritime logistics, providing specialized moisture-proof packaging to ensure the material arrives in prime condition at any global port.
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