镁铁铝尖晶石无铬砖 | ||
指标 | Me-80A | Me-90A |
体积密度kg/m3 | ≥3.0 | ≥2.9 |
显气孔率% | ≤17 | ≤16 |
常温耐压强度MPa | ≥50 | ≥55 |
0.2Mpa荷重软化温度℃ | ≥1650 | ≥1700 |
MgO% | ≥85 | ≥92 |
Fe2O3% | ≤7.5 | ≤4.0 |
Cr2O3% | ≥3.0 | ≥3.5 |
SiO2% | ≤1.0 | ≤1.0 |
热震稳定性(1100℃水冷) | ≥10 | ≥10 |
热导率(1000℃) | ≤2.6 | ≤2.8 |
热膨胀率(1400℃)% | 1.6 | ----- |