Description
Magnesia-carbon brick is a kind of non-burning carbon composite refractory material made from high-melting-point basic oxide magnesia and high-melting-point graphite, which is resistant to slag penetration，adding various non-oxide additives and combining with carbonaceous binder. As a composite refractory material, magnesia carbon bricks effectively combine the strong slag resistance of magnesia with the high thermal conductivity and low thermal expansion of carbon, thereby compensating for poor spalling resistance of magnesia. Their main features include excellent high-temperature performance, strong slag resistance, good thermal shock resistance, and low high-temperature creep.
Advantages: high strength, good slag resistance, good thermal shock stability, high refractoriness, etc.
Specifications
| Grade | Item | ||||||
| Open Porosity / % ≤ | Bulk density / (g·cm³) ≥ | CCS / MPa | High-temp Modulus of Rupture (1400℃×0.5 h) / MPa ≥ | ω(MgO)/ % ≥ | ω(C)/ % ≥ | ||
| MT-5A | 5.0 | 3.10 | 50.0 | — | 85.0 | 5.0 | |
| MT-5B | 6.0 | 3.02 | 50.0 | — | 84.0 | 5.0 | |
| MT-5C | 7.0 | 2.92 | 45.0 | — | 82.0 | 5.0 | |
| MT-5D | 8.0 | 2.90 | 40.0 | — | 80.0 | 5.0 | |
| MT-8A | 4.5 | 3.05 | 45.0 | — | 82.0 | 8.0 | |
| MT-8B | 5.0 | 3.00 | 45.0 | — | 81.0 | 8.0 | |
| MT-8C | 6.0 | 2.90 | 40.0 | — | 79.0 | 8.0 | |
| MT-8D | 7.0 | 2.87 | 35.0 | — | 77.0 | 8.0 | |
| MT-10A | 4.0 | 3.02 | 40.0 | 6.0 | 1.0 | 80.0 | 10.0 |
| MT-10B | 4.5 | 2.97 | 40.0 | — | 79.0 | 10.0 | |
| MT-10C | 5.0 | 2.92 | 35.0 | — | 77.0 | 10.0 | |
| MT-10D | 6.0 | 2.87 | 35.0 | — | 75.0 | 10.0 | |
| MT-12A | 4.0 | 2.97 | 40.0 | 6.0 | 1.0 | 78.0 | 12.0 |
| MT-12B | 4.0 | 2.94 | 35.0 | — | 77.0 | 12.0 | |
| MT-12C | 4.5 | 2.92 | 35.0 | — | 75.0 | 12.0 | |
| MT-12D | 5.5 | 2.85 | 30.0 | — | 73.0 | 12.0 | |
| MT-14A | 3.5 | 2.95 | 38.0 | 10.0 | 1.0 | 76.0 | 14.0 |
| MT-14B | 3.5 | 2.90 | 35.0 | — | 74.0 | 14.0 | |
| MT-14C | 4.0 | 2.87 | 35.0 | — | 72.0 | 14.0 | |
| MT-14D | 5.0 | 2.81 | 30.0 | — | 68.0 | 14.0 | |
| MT-16A | 3.5 | 2.92 | 35.0 | 8.0 | 1.0 | 74.0 | 16.0 |
| MT-16B | 3.5 | 2.87 | 35.0 | — | 72.0 | 16.0 | |
| MT-16C | 4.0 | 2.82 | 30.0 | — | 70.0 | 16.0 | |
| MT-18A | 3.0 | 2.89 | 35.0 | 10.0 | 1.0 | 72.0 | 18.0 |
| MT-18B | 3.5 | 2.84 | 30.0 | — | 70.0 | 18.0 | |
| MT-18C | 4.0 | 2.79 | 30.0 | — | 69.0 | 18.0 | |
Product Size: We offer refractory brick sizes that comply with ISO, EN, ASTM, JIS, etc, and customized sizes.
Applications
Mainly used in the metallurgical industry, such as converters, AC electric arc furnaces, DC electric arc furnaces, ladles, hot metal ladles, and torpedo cars.
Magnesia carbon bricks are used in working parts such as ladle slag line, molten pool and ladle bottom, which can significantly improve the service life of the ladle. Especially when used in the slag line, its service life can be significantly higher than other refractory materials.
Our services: refractory technicians, refractory installation drawings, refractory bricks and castables, refractory masonry services, refractory mixes and precast cell, special shaped bricks, insulation materials, installation supervision, accident investigation and resolution, other customized services.
