Ramming material
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Product introduction
It is primarily used for the lining of the iron-tapping notch in single-tap blast furnaces with a capacity of 1,000 m³. The ramming construction method enables rapid baking. Calcium-based materials exhibit excellent resistance to erosion and thermal shock. GCD-50 and GCD-45 are employed as linings for the iron-tapping notches of blast furnaces with capacities of 600 m³ or less.
Product details
Project | GCD-65 | GCD-50 | GCD-45 | |
Chemical composition, %, ≥ | Al 2 O 3 | 65 | 50 | 45 |
Silicon carbide | 12 | 10 | 8 | |
Bulk density, g/cm³, ≥ | 110℃ for 24 hours | 2.8 | 2.3 | 2.0 |
1450℃ for 24 hours | 2.7 | 2.2 | 1.9 | |
Withstand voltage strength, ≥ | 110℃ for 24 hours | 12 | 10 | 10 |
1450℃ for 24 hours | 10 | 10 | 10 | |
Flexural strength, ≥ | 110℃ for 24 hours | 2.5 | 2.5 | 2.0 |
1450℃ for 24 hours | 2.0 | 2.0 | 1.5 | |
Permanent linear change, 1450 × 24 h, % | ±1.0 | ±1.0 | ±1.0 | |
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