Magnesia carbon refractory bricks are high-performance materials engineered to withstand the extreme environments of steelmaking applications. Manufactured using premium-grade fused magnesia and high-purity graphite, these bricks deliver excellent thermal shock resistance, high-temperature strength, and outstanding slag resistance. Their unique composition makes them especially suitable for ladles, converters, and electric arc furnaces where both mechanical stress and chemical corrosion are significant.
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 Shock Resistance
Designed to endure rapid temperature fluctuations without cracking or structural failure.High Refractoriness
Maintains structural integrity and performance under temperatures exceeding 1600°C.Superior Corrosion and Slag Resistance
The inclusion of high-purity graphite and anti-oxidation additives enhances resistance against corrosive slags and metal penetration.Optimized Mechanical Strength
Ensures long service life even in aggressive furnace environments.Tailor-Made Formulations
Available in various carbon contents and binder systems based on specific steelmaking needs.
Typical Applications
Steel ladle lining and impact zones
Converter and electric arc furnace working linings
Slag line and taphole areas
Refining furnaces (VOD, AOD, etc.)
Production Details
Magnesia Carbon Refractory Bricks for steelmaking are manufactured using premium-grade fused magnesia and high-purity flake graphite as the main raw materials. The bricks are produced through a high-pressure forming process and undergo low-temperature treatment to maintain optimal carbon bonding and structural integrity.
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 is the typical chemical composition of customized magnesia carbon bricks?
Our magnesia carbon bricks typically contain MgO content between 70% and 82%, and carbon content ranging from 5% to 18%, tailored to specific application needs.
Q2: Can you produce magnesia carbon bricks in custom sizes and shapes?
Yes, we offer full customization of sizes, shapes, and formulations to meet the unique requirements of your industrial furnace lining.
Q3. What industries commonly use magnesia carbon bricks?
These bricks are widely used in steelmaking (electric arc furnace, ladle linings), non-ferrous metallurgy, cement kilns, and other high-temperature industrial furnaces.
Q4: How resistant are these bricks to thermal shock and corrosion?
Due to their high-quality magnesia and carbon composition, these bricks have excellent thermal shock resistance and corrosion resistance against acidic and basic slags.
Q5: What is the maximum operating temperature for these bricks?
Our magnesia carbon bricks can typically withstand service temperatures up to 1750°C.
