Magnesia Carbon Bricks are high-performance basic refractory bricks made from high-purity magnesia and carbon, offering excellent resistance to molten steel, slag corrosion, and thermal shock in steelmaking furnaces.
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info@rsrefractories.comMagnesia Carbon Bricks are manufactured by mixing high-quality magnesia with carbon additives such as graphite or pitch, followed by high-pressure forming and high-temperature baking. These bricks combine the high refractoriness and slag resistance of magnesia with the excellent thermal shock resistance, low thermal expansion, and chemical stability of carbon. MgO-C bricks are particularly suitable for continuous steelmaking applications, including electric arc furnaces (EAF), ladles, and converters. They provide outstanding corrosion resistance against basic slags, prevent erosion by molten steel, and maintain structural integrity under repeated thermal cycling, significantly extending service life and reducing maintenance costs.
| Item | MT10A | MT10B | MT14A | MT14B | MT18A | MT18B |
| MgO %≥ | 80 | 78 | 76 | 74 | 72 | 70 |
| C % ≥ | 10 | 10 | 14 | 14 | 18 | 18 |
| Apparent porosity % ≤ | 4 | 5 | 4 | 5 | 3 | 4 |
| Bulk density g/cm3 ≥ | 2.9 | 2.85 | 2.9 | 2.82 | 2.9 | 2.8 |
| Crushing strength Mpa ≥ | 40 | 35 | 40 | 35 | 40 | 35 |
| Modulus of rupture Mpa ≥ | 6 | 5 | 10 | 8 | 9 | 7 |
Magnesia Carbon Bricks are widely used in:
Electric Arc Furnace (EAF) hearths and sidewalls
Ladle linings and tapholes
Converter linings and furnace roofs
Continuous casting tundishes
Areas exposed to basic slag and molten steel
Ferroalloy and non-ferrous metal furnaces
Comprehensive Refractory Product Range
We manufacture 3 main types of refractory materials — refractory castables, high alumina cement, and refractory bricks — covering 100+ industrial furnace types worldwide.
Certified Quality and International Standards Compliance
All batches undergo strict quality control. Products comply with ISO, ASTM, and GB standards, ensuring reliable performance in high-temperature industrial applications.
Annual Production Capacity of 130,000 Tons
With a large-scale capacity of 130,000 tons per year, we guarantee stable supply and on-time delivery for long-term and large-volume projects.
Exported to 120+ Countries and 1,000+ Projects
Our products have been successfully delivered to over 120 countries, supporting more than 1,000 industrial projects, including cement, steel, incineration, glass, and petrochemical furnaces.
20+ Years of Experience in Refractory Manufacturing
With over 20 years of experience, we understand real furnace conditions and deliver materials proven in long-term industrial operations worldwide.
Professional Technical Support and Free Samples
We provide technical assistance from material selection to installation guidance, with free samples available for testing and supporting 1,000+ projects globally.
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