refractory bricks for hot blast stoves
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excellent thermal insulation
energy saving
high compressive strength
long service life
refractory bricks:
Product features
Excellent thermal insulation, energy saving, high compressive strength
low thermal conductivity, low shrinkage, excellent resistance to wind erosion performance
excellent high temperature performance, long service life
application
For the heating furnace, soaking pit, annealing furnace and other furnace working lining and insulation. It is a good new energy-saving environmental protection (type) refractory materials
| Item | Index | ||||
| GL-65 | GL-55 | GL-48 | |||
| Alumina(%) | ≥65 | ≥55 | ≥48 | ||
| Iron oxide(%) | ≤2 | ||||
| Apparent porosity | ≤19 | ≤18 | |||
| Cold compressive strength(mpa) | ≥58.8 | ≥49 | |||
| Refractoriness(°C) | 180 | 178 | 176 | ||
| Refiring profile changes(%) | 1500°C,2h | 0-0.2 | - | ||
| 1450°C,2h | - | 0-0.2 | |||
| Load softening temperature | 0.2Mpa | ≥1500 | ≥1480 | ≥1450 | |
| (°C) | |||||
