Index | M70 | M75 | M80 |
Al2O3 (%) | ≥ 20 | ≥ 10 | ≥ 15 |
Fe2O3 (%) | / | / | / |
Bulk density (g/cm3) | ≥ 2.65 | ≥ 2.65 | ≥ 2.7 |
Bulk density (lbs/ft3) | 164.74 | 164.74 | 167.85 |
Apparent Porosity (%) | ≤18 | ≤19 | ≤20 |
Cold Crushing Strength (MPa) | ≥90 | ≥90 | ≥80 |
(0.2Mpa,0.6%)Refractoriness under load (°C) | ≥1700 | ≥1700 | ≥1700 |
0.2 MPa creep rate (1400℃*50h) (%) | ≤ 0.8 | ≤ 0.8 | ≤ 0.8 |
Pessoa de Contato : | Elizabeth |
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