// SPEC · 耐火砖
刚玉锆英砖（Al₂O₃ 85%+ZrO₂ 8%）
刚玉锆英砖（Al₂O₃ 85%+ZrO₂ 8%），抗钢水及熔渣侵蚀性能卓越，适用于钢包工作层、滑板砖系统及连铸中间包，高温强度高，抗渗透性强，延长钢铁浇注设备使用寿命。
// 主要特性
- Exceptional resistance to molten steel and oxidizing slag erosion
- ZrO2 phase toughening enhances fracture toughness and crack resistance
- Low apparent porosity (≤16%) preventing steel and slag infiltration
- High hot strength maintaining structural integrity at 1750°C under metallurgical load
// 技术规格
| Al2O3 (%) | ≥85 |
| Fe2O3 (%) | ≤0.4 |
| Apparent Porosity (%) | ≤16 |
| Cold Crushing Strength (MPa) | ≥140 |
| Refractoriness Under Load (°C) | ≥1680 |
// 应用领域
Steel ladle working liningSlide gate upper and lower refractory platesContinuous casting tundish impact padEAF slag line working liningSteel ladle well block and nozzle seat brick
// 快速规格
最高温度1750°C
导热系数3.8 W/(m·K) at 1000°C
体积密度3.20 g/cm³
执行标准YB/T 5208
// 获取报价