Place of Origin:
China
Brand Name:
Annec
Certification:
ISO
Model Number:
DLG180-1.5L/DLG170-1.3L
Description For Refractory Heat Insulating Brick :
Composed of compound mullite , the brick are processed through moulding under high pressure and sintering at high temperature , with feature of strong strength,steady bulk at high temperature and small creep rate, which are available for hot blast stove of large and middle size.
Applications For Refractory Heat Insulating Brick :
Mullite insulation bricks refractory material can be used in linings or heat-insulating
materials of the industries, such as, ethylene pyrolysis furnaces, tubular furnaces,
reforming furnaces of synthetic ammonia, gas generators and high-temperature shullte kilns, etc.
Physical and Chemical Index:
| Item | DLG180-1.5L | DLG170-1.3L | LG160-0.8L | LG150-0.8L | LG140-0.7L | LG125-0.5L | |
| Al2O3 % | ≥90 | ≥72 | ≥60 | ≥55 | ≥50 | ≥48 | |
| Fe2O3 % | ≤1.0 | ≤1.0 | ≤1.0 | ≤1.0 | ≤1.0 | ≤1.0 | |
| Bulk Density ( g/cm3) | ≤1.5 | ≤1.3 | ≤1.0 | ≤0.8 | ≤0.7 | ≤0.5 | |
| Cold Crushing Strength (MPa) | ≥9.5 | ≥5.0 | ≥3.0 | ≥2.5 | ≥2.0 | ≥1.5 | |
| Linear Change on Reheating | ≤1% | 1800 | 1700 | 1600 | 1500 | - | - |
| ≤2% | - | - | - | - | 1400 | 1250 | |
| Thermal conductivity (350±25)℃ (W/mK) | ≤0.8 | ≤0.6 | ≤0.4 | ≤0.35 | ≤0.3 | ≤0.2 | |
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