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High alumina refractory ball is made of bauxite and shaped by pressing machine and used as heat regenerator in top combustion hot blast stove of blast furnace.
High alumina refractory ball is made of bauxite and shaped by pressing machine and used as heat regenerator in top combustion hot blast stove of blast furnace.
Low creep high alumina ball | ||
Item | Unit | F50 |
Al2O3 , | % | ≥65 |
Fe2O3, | % | ≤1.8 |
Bulk density, | g/cm3 | ≥2.35 |
Refractoriness , | % | ≥1710 |
Cold crushing strength, | Mpa | ≥25 |
Refractoriness under load ℃,100N*0.6% | ℃ | ≥1520 |