CUMILITE W
USER INDUSTRIES
Glass
Iron & Steel
Petrochemicals, Fertilisers
Metallurgical industries
Ceramics
Carbon blackn
APPLICATIONS
Furnace super structure lining, Regenerator, Sub-paving
Blast Furnace, Stove, Torpedo ladle, Iron ladle
Burner blocks
Heating element carrying plates
Kiln lining, Burner blocks & Kiln furniture
Reactor lining
DESCRIPTION
CUMILITE Mullite refractories are manufactured from high purity mullite grains. CUMILITE refractories are extremely stable in service, unlike conventional mullite refractories. They are specially meant for applications that demand good chemical and mechanical stability, strength at high temperatures and resistance to spalling, corrosion and flame impingement. They outperform other refractories in high temperature volume stability in applications such as high intensity burner, carbon black reactors and other processes operated at extremes of temperature and corrosive conditions. Mullite products based on Silimanite, Andalusite and sintered mullite are widely used in glass and steel industry applications for their excellent thermal shock properties, creep resistance and resistance to chemical attack.
| Physical Properties | UNIT | Limit Value | Typical Value |
|---|---|---|---|
| Maximum Hot Face Temperature | °C | 1760 | 1760 |
| Bulk Density | gm/cc | 2.50 min. | 2.60 |
| Apparent Porosity | % | 21.0 max. | 19.0 |
| Cold Crushing Strength | Kg/cm2 | 800 min. | 950 |
| Modulus of Rupture | |||
| At Room Temperature | Kg/cm2 | 150 min. | 175 |
| At 1350°C | 75 min. | 100 | |
| Reheat Change After heating at 1450 C for 6 hrs. | % | +/-0.1 max. | – |
| Thermal Conductivity | |||
| At 800 C Hot Face Temp. | 1.9 max. | 1.68 | |
| At 1000 C Hot Face Temp. | W/m K | 2.0 max. | 1.61 |
| At 1200 C Hot Face Temp. | 2.0 max. | 1.74 | |
| Chemical Analysis | |||
| Al2O3 | 76.0 min. | 77.47 | |
| SiO2 | 22.0 max. | 20.64 | |
| Fe2O3 | 0.30 max. | 0.21 | |
| Recommended Laying Mortars | CUMIBOND LM 36 |
