Alkali-Resistant Brick for Cement Kilns
Product description
Product Description
| alkali-resistant brick | High-strength alkali resistant brick | Arch alkali resistant brick | ||
XNJ-30 | XNJ-30G | XNJ-35D | |||
Al2O3 % | 25-30 | 25-30 | 30-35 | ||
| SiO2 % | 60-70 | 60-70 | |||
| Fe2O3 ≤% | 2 | ||||
Apparent porosity | 25 | ||||
Cold crushing strength≥MPa | 35 | 70 | 40 | ||
Bulk density≥g/cm3 | 2.1 | 2.2 | 2.2 | ||
Linear change after heating 1200℃*2h% | +0.2~-0.2 | +0.15~-0.15 | +0.15~-0.15 | ||
Refractoriness>℃ | 1650 | 1650 | 1700 | ||
Refractoriness under load≥℃ | 1230 | 1250 | 1280 | ||
Thermal shock resistances water cycle | 10 | - | - |
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