Carbon Refractory Bricks are high-strength, high-temperature resistant bricks made from carbon or graphite materials, offering exceptional thermal shock resistance, corrosion resistance, and durability in extreme furnace conditions.
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Carbon Refractory Bricks are engineered using high-purity carbon, graphite, and binding agents, formed under high pressure and baked at elevated temperatures to ensure excellent thermal, mechanical, and chemical stability. These bricks exhibit outstanding resistance to molten metals, basic and acidic slags, and rapid temperature fluctuations. With extremely low thermal expansion and high thermal conductivity, carbon bricks maintain structural integrity even under extreme operating conditions. Their non-wetting properties against molten iron and steel make them ideal for metallurgical processes requiring long service life, low erosion rate, and superior performance in aggressive environments.
| Item | High Thermal Conductivity Carbon Brick | Semi-graphite Carbon Brick | Microporous Carbon Brick | Ultra-microporous Carbon Brick | |
| Ash,% ≤ | 7 | 10 | 20 | 23 | |
| Bulk Density, g/cm3 ≥ | 1.6 | 1.55 | 1.62 | 1.68 | |
| Apparent Porosit, % ≤ | 18 | 20 | 18 | 17 | |
| CCS, Mpa ≥ | 30 | 30 | 36 | 38 | |
| MOR, Mpa ≥ | 8 | 8 | 9 | 9 | |
| Molten Iron Corrosion Index, % ≤ | 32 | 32 | 30 | 30 | |
| Oxidation Rate, % ≤ | 20 | 20 | 28 | 8 | |
| Air Permeability, mDa ≤ | 70 | 50 | 9 | 1 | |
| Thermal Conductivity, W/(M·K） | Room Temperature | 20 | 6 | 7 | — |
| 300°C | — | 9 | 10 | 16 | |
| 600°C | 25 | 12 | 14 | 20 | |
| Note: The above index is for reference only, if you need specific indicators, please contact us consultant! | |||||
Carbon Refractory Bricks are widely used in:
Blast furnace hearths and bosh areas
Hot metal and steel ladles
Electric arc furnace hearths
Aluminum electrolytic cells
Ferroalloy and non-ferrous metal furnaces
High-temperature zones requiring anti-erosion and anti-corrosion performance
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