Description
Alumina-magnesia carbon brick is a kind of refractory product made from premium-grade bauxite or corundum sand, magnesia, and flaky graphite as the main raw materials. Their key feature is that, at high temperatures, they not only exhibit high corrosion resistance and resistance to spalling due to their carbon content, but also show a high residual linear expansion rate because of the formation of spinel during use.
Specification
| Item | Grade | ||||
| LMT75 | LMT70 | LMT65 | LMT60 | LMT55 | |
| ω(Al2O3) /%≥ | 75 | 70 | 65 | 60 | 55 |
| ω(Al2O3+ MgO) /%≥ | 81 | 77 | 80 | 75 | 72 |
| ω(C) /%≥ | 5 | 5 | 7 | 7 | 8 |
| Apparent Porosity/%≤ | 7.0 | 7.0 | 7.0 | 7.0 | 7.0 |
| Bulk density/(g/cm³)≥ | 3.20 | 3.15 | 3.10 | 3.00 | 2.90 |
| Cold Crushing Strength/MPa≥ | 60 | 60 | 60 | 50 | 50 |
Product Size: We offer refractory brick sizes that comply with ISO, EN, ASTM, JIS, etc, and customized sizes.
Applications
Alumina magnesia carbon brick Mainly used in the steel industry, such as the furnace mouth, slag line, and charging side of converters; the furnace walls and furnace bottom of electric arc furnaces; the slag line area of ladle linings; and the slag line and wall of molten iron ladles.
Support & Technical Services
JHYRef can provide alumina magnesia carbon bricks in different grades, shapes and sizes according to customer requirements. Customized production is available based on furnace drawings, lining design, working position and operating conditions.
We support customers with product selection, technical communication and refractory lining recommendations. Before quotation, customers can provide brick size, quantity, application position, furnace type, working temperature and slag condition, so that a suitable grade can be recommended.
For export orders, JHYRef can provide standard packaging, palletizing, labeling and shipping document support. Third-party inspection and customized packing requirements can also be arranged according to project needs.
