zhenjin refractories Co.,Ltd.
1Years
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Product Description
Features: Strong volume stability at high temperatures, good thermal shock resistant, wear resistance and chemical corrosion resistance.
Applications: Transitional zone and preheating zone of cement rotary kiln, and other thermal equipment that requires thermal shock resistance.
Trademark | YRS-70 | |
item | index | |
Chemical composition（%） | Al2O3 | ≥70 |
Fe2O3 | ≤2 | |
Refractoriness（℃） | ≥1790 | |
Volume density （g/cm3） | 2.50-2.60 | |
Apparent porosity（%） | ≤22 | |
Cold crushing strength（MPa） | ≥60 | |
Refractoriness under load（T0.6，℃） | ≥1500 | |
Thermal expansion rate （1000℃，%） | 0.4-0.5 | |
Thermal conductivity（W/m.K） | 1.2-1.4 | |
Thermal shock resistance, time（1100℃,water-cooling） | ≥20 | |
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