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|  产品详细介绍 |  
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| 项 目 \ 牌 号 | RDL127 | RDL130 | RDL135 | RDL140 | RDL145 | RDL150 | RDL155 |  
| Al2O3 % | ≥50 | ≥60 | ≥65 | ≥65 | ≥65 | ≥75 | ≥75 |  
| 显气孔率 % | ≤23 | ≤22 | ≤22 | ≤22 | ≤21 | ≤21 | ≤20 |  
| 体积密度 g/cm3 | 2.3~2.5 | 2.3~2.5 | 2.35~2.55 | 2.4~2.6 | 2.5~2.7 | 2.65~2.85 | 2.65~2.85 |  
| 常温耐压强度 Mpa | ≥50 | ≥55 | ≥55 | ≥55 | ≥60 | ≥60 | ≥60 |  
| 重烧线变化率 % | 1450℃×2h0.1~-0.4
 | 1450℃×2h0.1~-0.4
 | 1450℃×2h0.1~-0.4
 | 1450℃×2h0.1~-0.2
 | 1550℃×2h0.1~-0.2
 | 1550℃×2h0.1~-0.2
 | 1550℃×2h0.1~-0.2
 |  
| 蠕变率 (0.2Mpa×50h) %
 
 | 1270℃≤0.8
 | 1300℃≤0.8
 | 1350℃≤0.8
 | 1400℃≤0.8
 | 1450℃≤0.8
 | 1500℃≤0.8
 | 1550℃≤0.8
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| 项 目 \牌 号 | RDL127A | RDL130A | RDL135A | RDL140A | RDL145A | RDL150A | RDL155A |  
| Al2O3 % | ≥48 | ≥50 | ≥55 | ≥60 | ≥65 | ≥70 | ≥75 |  
| Fe2O3 % | ≤1.3 | ≤1.2 | ≤1.2 | ≤1.1 | ≤1.0 | ≤0.8 | ≤0.6 |  
| TiO2 % | ≤1.5 | ≤1.4 | ≤1.2 | ≤1.2 | ≤1.0 | ≤0.8 | ≤0.6 |  
| 显气孔率 % | ≤18(19) | ≤18 | ≤18(20) | ≤19(21) | ≤19(21) | ≤19(21) | ≤19(21) |  
| 体积密度 g/cm3 | ≥2.25(2.22)
 | ≥2.3(2.25)
 | ≥2.35(2.30)
 | ≥2.40(2.35)
 | ≥2.50(2.45)
 | ≥2.55
 | ≥2.6
 |  
| 常温耐压强度 Mpa | ≥40(35) | ≥45(40) | ≥45(40) | ≥45(40) | ≥50(45) | ≥55 | ≥55 |  
| 荷重软化温度 (0.2Mpa) T0.5 
 
 | ≥1450 | ≥1480 | ≥1550 | ≥1580 | ≥1600 | ≥1650 | ≥1650 |  
| 重烧线变化率 % 
 | 1450℃×2h±0.2
 | 1350 ℃×4h±0.2
 | 1400 ℃×4h±0.2
 | 1400 ℃×4h±0.2
 | 1500 ℃×4h±0.2
 | 1500 ℃×4h±0.2
 | 1500 ℃×4h±0.2
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| 0.2Mpa蠕变率 % (20~50h)
 | 1270℃≤0.2
 | 1300℃≤0.2
 | 1350℃≤0.2
 | 1400℃≤0.2
 | 1450℃≤0.2
 | 1500℃≤0.2
 | 1550℃≤0.2
 |  |  注:括号内的数值适用于格子砖
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