160-280美元/吨
黏土砖一般指Al2O3含量在28-45%的耐火砖，隆科特可依照客户要求供应不同等级不同用途的黏土砖
| 材料 | 常见的 | 特殊的 | ||||||||
| 高炉 | 热风炉 | 玻璃熔窑 | ||||||||
| SK32 | SK34 | ZGN-42 | GN-42 | RN-42 | RN-40 | RN-36 | BN-40a | BN-40b | ||
| 塞锥温度 | 31-32 | 33-34 | – | – | – | – | – | – | – | |
| 耐火性 (℃) | 1715 | 1760 | 176 | 176 | 176 | 174 | 170 | – | – | |
| 密度 (kg/m3) | 2100-2200 | 2200-2250 | 2200 | 2200 | 2200 | 2200 | 2150 | 2250 | 2250 | |
| 显气孔率 (%) | 22-24 | 18-20 | ≤15 | ≤16 | ≤24 | ≤24 | ≤25 | ≤18 | ≤18 | |
| 低温耐压强度 (MPa) | 22-32 | 30-35 | ≥58.8 | ≥49.0 | ≥29.4 | ≥24.5 | ≥19.6 | ≥49.0 | ≥34.3 | |
| 耐折强度 (kg/cm2) | 55-70 | 60-80 | – | – | – | – | – | – | – | |
| 烧后永久线变化 | (1350℃%,3h) | – | – | – | – | – | 0~-3 | 0~-0.5 | ||
| (1400℃%,2h) | – | – | – | – | – | – | – | 0~-0.4 | 0~-0.4 | |
| (1450℃%,3h) | – | – | 0～-2 | 0～-3 | 0~-0.4 | – | – | – | – | |
| (1400℃%) | 0.0-0.2 | -0.18 | – | – | – | – | – | – | – | |
| 0.2 MPa 荷重软化温度（%) | – | – | ≥1450 | ≥1430 | ≥1400 | ≥1350 | ≥1300 | ≥1450 | ≥1400 | |
| SiO2 (%) | 57.8 | 52.4 | – | – | – | – | – | – | – | |
| Al2O3 (%) | 36.2 | 42.1 | ≥42 | ≥42 | ≥42 | ≥40 | ≥36 | ≥40 | ≥40 | |
| Fe2O3 (%) | 2 | 1.4 | ≤1.7 | ≤1.7 | – | – | – | ≤1.5 | ≤1.5 | |
| Cao (%) | 0.5 | 0.4 | – | – | – | – | – | – | – | |
| Na2O+K2O+Li2O (%) | 0.5 | 0.5 | – | – | – | – | – | – | – | |
陶瓷纤维毯采用无炉衬水冷壁电阻炉连熔、连甩工艺成纤，双面
电炉炉底用耐火干式捣打料采用优质菱镁矿和Fe2O3-CaO菱镁矿制成
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