Magnesia Carbon Bricks

Description

1. Product Overview
   Magnesia Carbon Bricks are high-performance refractory materials engineered from a combination of high-purity magnesia (MgO) and carbon-based additives, designed for extreme thermal and mechanical environments. They are primarily used in steelmaking furnaces, especially in basic oxygen furnaces (BOF), electric arc furnaces (EAF), and ladles where resistance to slag corrosion and thermal shock is critical. The key value proposition lies in their superior resistance to high-temperature degradation, oxidation, and chemical attack compared to conventional refractories. Strategically, they are essential to maximizing furnace lifespan, reducing downtime, and improving overall steel production efficiency in modern metallurgical operations.
2. Key Specifications & Technical Characteristics

• Chemical Composition: MgO (magnesia) 60–85%, Carbon (graphite) 10–20%, plus antioxidant additives (Al, Si, Mg compounds)
• Grade: Industrial refractory grade (steelmaking applications)
• Physical Form: Solid shaped bricks (standard and customized geometries)
• Color: Dark gray to black
• Bulk Density: 2.7 – 3.0 g/cm³ (typical range)
• Cold Crushing Strength: ≥ 40–60 MPa (varies by grade)
• Porosity: Low apparent porosity for enhanced slag resistance
• Packaging: Wooden pallets with shrink wrap or steel-banded crates
• Shelf Life: Indefinite under dry storage conditions

3. Core Industrial Applications

• Steel Industry: BOF converters, EAF linings, steel ladles, refining vessels
• Metallurgy: High-temperature smelting and secondary refining processes
• Foundries: Heavy-duty melting furnaces requiring slag-resistant linings
• Key Use Case: Protective refractory lining to withstand molten steel, aggressive slag, and thermal cycling
• Performance Advantage: Outperforms traditional alumina or fireclay bricks through superior slag resistance, reduced erosion rate, and enhanced thermal shock stability
• Operational Benefit: Extends furnace campaign life, reduces relining frequency, and minimizes production downtime

4. Competitive Advantages

• High Thermal Stability: Maintains structural integrity under extreme operating temperatures
• Superior Slag Resistance: Optimized MgO-carbon matrix resists chemical corrosion from basic slags
• Consistent Quality: Tight production control ensures uniform density and performance reliability
• Supply Reliability: Scalable production capacity for bulk industrial demand
• Cost Efficiency: Extended service life reduces total cost of refractory ownership
• Environmental Benefit: Lower consumption of refractory materials reduces industrial waste generation
• Technical Support: Full documentation, installation guidance, and application engineering support available

5. Commercial & Supply Information

• Minimum Order Quantity (MOQ): BULK 20 MT
• Loading Capacity: 20–22 MT per 20’ FCL container (depending on packing configuration and stowage efficiency)