Business:
Business:
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 |