The refractory fused Electric Zircon Corundum Brick
1.good RUL
2.wear-resistance
3.dregs-resistance
4.alkali corrosion resis
Material Item Index | AZS-33(AZS-1681) | AZS-36(AZS-1691) | AZS-41(AZS-1711) | α-βAl2O3 | β-Al2O3 | |
Chemical composition ≤ | Al2O3 | ≥50.00 | ≥49.00 | ≥45.00 | ≥94.00 | ≥93.00 |
ZrO2 | ≥32.50 | ≥35.50 | ≥40.50 |
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SiO2 | ≤15.50 | ≤13.50 | ≤13.00 | ≤1.80 | ≤0.50 | |
Na2O+K2O | ≤1.30 | ≤1.35 | ≤1.30 | ≤3.70 | ≤6.00 | |
Bulk density (g/cm3) | ≥3.75 | ≥3.85 | ≥4.00 | ≥3.40 | ≥3.05 | |
Apparent porosity(%) | ≤1.2 | ≤1.0 | ≤1.2 | <2.0 | <10.0 | |
Cola crush strength MPa | ≥300 | ≥300 | ≥300 | ≥200 | ≥30 | |
Seeping degree | ≥1400 | ≥1400 | ≥1410 |
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Bubble precipitation rate | ≤2.0 | ≤2.0 | ≤2.0 | 0(1000°C*10h) |
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Anti-erosion rate of glass solution | ≤1.5 | ≤1.4 | ≤1.2 | <0.3(1350°C*48h) |
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Apparent density(g/cm3) | PT | ≥3.40 | ≥3.50 | ≥3.65 | ≥3.00 | ≥2.80 |
ZWS | ≥3.60 | ≥3.70 | ≥3.80 |
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WS | ≥3.65 | ≥3.75 | ≥3.85 | ≥3.30 | ≥2.90 |