Carbon bricks, as the name suggests, are chemically composed of carbon. The raw materials of carbon bricks are coke(metallurgical coke, petrol coke or pitch coke), graphite or heat treated anthracite. Carbon containing organic binders(tar, pitch and so on) are often used as binders. According to graphite content, carbon based bricks are classified into carbon bricks, artificial graphite bricks and semi graphite carbon bricks.
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High refractoriness and high refractoriness under load.
Good thermal shock resistance.
Good resistance to molten slag or iron liquid impregnation.
Excellent resistance to various kinds of salts and organic materials corrosion.
Strong slag erosion resistance, good high hot volume stability.
High mechanical strength, good abrasion resistance.
Excellent thermal conductivity.
| Physical and chemical parameters of carbon bricks | ||
| Index | ||
| Bulk density (g/cm3),≥ | 1.7 | |
| Open porosity /%,≤ | 15 | |
| Stress strength /MPa,≥ | 36 | |
| Air permeability mPa,≤ | 1 | |
| Oxidation rate /%,≤ | 8 | |
| Average pore size,≤ | 0.1 | |
| Thermal conductivity ≥W/(m K) |
At room temperature | 16 |
| 600℃ | 20 | |
| Note:The above index is for reference only,if you need specific indicators,please contact consultant |
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Carbon Bricks are widely used in the metallurgical industry, of which carbon bricks are more used in the blast furnace. Many blast furnaces’ furnace bottom and hearth are built with carbon bricks.Carbon Bricks also can be used for pickling bath, plating bath in the electroplating industry, for the dissolving tank in the paper manufacturing industry, for the reactive tank and storage tank in the chemical industry, and for the autoclave in the petrochemical industry.
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