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|  产品详细介绍 |  
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| 项 目 \ 牌 号 | 粘 土 质 | 高 铝 质 | 红柱石质 |  
| KN-40 | XN-40 | ZN-40 | JZN-40 | JZN-36 | JZL-48 | JZL-55 | JZL-65 | S60 | T55 | SK38 | JZH-57 |  
| Al2O3 % | ≥40 | ≥40 | ≥40 | ≥40 | ≥36 | ≥48 | ≥55 | ≥65 | ≥62 | ≥55 | ≥72 | ≥57 |  
| Fe2O3 % |  |  |  |  |  |  |  |  |  |  | ≤1.5 | ≤2.0 |  
| 显气孔率 % | ≤22 | 15-25 | ≤23 | 17~25 | 17~25 | ≤25 | ≤26 | ≤26 | ≤24 | ≤24 | ≤25 | ≤25 |  
| 体积密度 g/cm3 |  |  |  |  |  | ≥2.15 | ≥2.20 | ≥2.30 | ≥2.25 | ≥2.20 | ≥2.35 | ≥2.30 |  
| 耐火度 ℃ | ≥1710 | ≥1710 | ≥1710 | ≥1720 | ≥1700 | ≥1750 | ≥1770 | ≥1790 |  |  | SK≥38 | ≥1790 |  
| 重烧线变化率 % |  | 1350 ℃×2h0~ -0.3
 |  |  | 1350 ℃×2h+0.1~-0.3
 | 1450 ℃×2h0.1~-0.4
 
 | 1450 ℃×2h±0.3
 
 | 1500 ℃×2h±0.3
 
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