Model | RK-0 | RK-H | RK-A | CB-20 |
Al2O3(%) | ≥25-30 | ≥25-30 | ≥30-35 | ≥25-30 |
SiO2(%) | ≥60-67 | ≥65-70 | ≥60-65 | ≥60-67 |
Fe2O3(%) | ≤2.0 | ≤2.1 | ≤2.2 | ≤2.0 |
Apparent porosity(%) | ≤25 | ≤20 | ≤25 | ≥30 |
Refractoriness(℃) | 1650 | 1650 | 1700 | 1650 |
Normal temperature compressive strength(Mpa) | ≥25 | ≥60 | ≥40 | ≥15 |
softening temperature under load ℃(0.2MPaⅹ0.6%) | ≥1350 | ≥1200 | ≥1400 | ≥1250 |
Thermal Conductivity W/m.k (350±10℃) | ≤1.28 | ≤1.28 | ≤1.28 | ≤0.7 |
Thermal shock stability, times(1100℃,cooling water) | ≥10 | ≥25 | ≥10 | ≥5 |
Reburn line changes(1350℃ x 2h) | 0.1%-1.0% | - | - | - |
Persona de Contacto : | Elizabeth |
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