Magnesia carbon bricks with high thermal conductivity are premium refractory materials designed for use in high-temperature applications, especially within steelmaking furnaces and ladle linings. Engineered with high-purity fused magnesia and high-grade graphite, these bricks deliver superior thermal shock resistance, excellent corrosion resistance against slag and molten steel, and outstanding thermal conductivity to ensure structural stability during rapid heating and cooling cycles.
These bricks are manufactured through a high-temperature pressing and baking process, offering high mechanical strength, low thermal expansion, and long service life in harsh industrial environments. They are ideal for applications where quick heat transfer and dimensional integrity are crucial.
Technical Specifications
| Item | MgO, % (≥) | C, % (≥) | Apparent Porosity, % (≤) | Bulk Density, g/cm³ (≥) | Cold Crushing Strength, MPa (≥) |
|---|---|---|---|---|---|
| MT-8A | 82 | 8 | 4.5 | 3.05 | 45 |
| MT-8B | 81 | 8 | 5.0 | 3.00 | 45 |
| MT-10A | 80 | 10 | 4.0 | 3.02 | 40 |
| MT-10B | 79 | 10 | 4.5 | 2.97 | 40 |
| MT-12A | 78 | 12 | 4.0 | 2.97 | 40 |
| MT-12B | 77 | 12 | 4.0 | 2.94 | 35 |
| MT-14A | 76 | 14 | 3.5 | 2.95 | 38 |
| MT-14B | 74 | 14 | 3.5 | 2.90 | 35 |
| MT-16A | 74 | 16 | 3.5 | 2.92 | 35 |
| MT-16B | 72 | 16 | 3.5 | 2.87 | 35 |
| MT-18A | 72 | 18 | 3.0 | 2.89 | 35 |
| MT-18B | 70 | 18 | 3.5 | 2.84 | 30 |
Key Features
Excellent thermal conductivity
Superior thermal shock resistance
High resistance to erosion and slag penetration
Low thermal expansion rate
High mechanical strength and structural stability
Customized shapes and sizes available
Typical Applications
Converter lining
Electric arc furnace sidewalls and slag lines
Ladle slag zone
Refining furnaces
Tundish working lining
Production Details
Our high thermal conductivity magnesia carbon bricks are engineered using premium fused magnesia and high-purity graphite, combined with advanced anti-oxidant additives. The materials are carefully selected and processed under strict quality control standards to ensure consistent performance under extreme thermal and mechanical stress.
These bricks are manufactured using high-pressure forming and precise thermal treatment techniques to achieve excellent thermal conductivity, strong slag resistance, and superior thermal shock resistance. The result is a high-performance refractory product ideally suited for steelmaking applications, including converters, electric arc furnaces (EAF), and ladle linings.
Packing and Shipping Details
Packaging:
Each batch of magnesia carbon bricks is carefully packed on fumigation-free wooden pallets or in sturdy crates. The bricks are securely stacked and wrapped with waterproof film to protect against moisture and dust during transit. Steel straps reinforce the packaging to prevent shifting or damage.Shipping Methods:
We offer flexible shipping options tailored to customer needs, including sea freight, air freight, and express courier services. Shipping routes and logistics are optimized to ensure timely and safe delivery worldwide.
Frequently Asked Questions (FAQ)
Q1: What are magnesia carbon bricks used for?
Magnesia carbon bricks are primarily used in steelmaking equipment such as electric arc furnaces (EAF), basic oxygen furnaces (BOF), ladles, and converters. They are ideal for high-temperature applications due to their excellent thermal shock resistance and slag corrosion resistance.
Q2: What are the key raw materials in magnesia carbon bricks?
The main raw materials are high-purity fused magnesia and natural or synthetic graphite. Anti-oxidants such as Al, Si, or Mg powders are often added to improve performance in oxidative environments.
Q3. Can magnesia carbon bricks be customized for specific furnace applications?
Yes. We offer customization in terms of size, shape, carbon content, and special additives to suit different furnace designs and steelmaking processes.
Q4: How are magnesia carbon bricks installed?
They are typically installed using refractory mortar or dry gunning methods. Precise placement and proper preheating are essential for optimal performance and service life.
Q5: What is the typical service life of magnesia carbon bricks in a steel ladle or EAF?
Service life varies depending on operating conditions, slag composition, and brick quality. However, premium-grade magnesia carbon bricks can last from several heats to dozens of heats under optimal conditions.
