CUMILITE W
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.
| PRODUCT NAME | CUMILITE W | ||||
| 76% Alumina, Fused mullite with a secondary mullite bond | |||||
| PROPERTIES | UNIT | Limit Value | Typical Value | ||
| Maximum Hot Face Temperature | o 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 | Kg/cm2 | ||||
| At Room Temperature | 150 min. | 175 | |||
| At 1350o C | 75 min. | 100 | |||
| Reheat Change | % | ||||
| After heating at 1450°C for 6 hrs. | +/-0.1 max. | – | |||
| Thermal Conductivity | W/m K | ||||
| At 800o C Hot Face Temperature | 1.9 max. | 1.68 | |||
| At 1000o C Hot Face Temperature | 2.0 max. | 1.61 | |||
| At 1200o C Hot Face Temperature | 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 | ||||
Note : The above typical values shown are based on average test result on standard samples. Properties are subjected to reasonable variation based on product shape etc. and hence should be considered for general guidence only.
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.
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