cast 65 : Heat strength and high alumina, the main application in general kiln and furnace specially in cement klin, highly spalling resistant

Raw material basis : Secar 80, bauxite, calcined alumina and other additives.

Max. service temperature (°c) :  1700 – 1750

Tons required per cu. m. of construction : 2.33

Type of set : Hydraulic

Water required (%) : 10 – 12

Permanent liner change (%) :     

- After drying      0

- After firing 1000 °C       - 0.2

- After firing 1300 °C       - 0.3

- After firing 1500 °C       - 0.5

Crushing strength (kg/cm3) :       

- After drying     350

- After firing 1000 °C       350

- After firing 1300 °C       400

- After firing 1500 °C       500

Thermal conductivity at 350 °C (k.cal/m.h.°C) : 0.65

Chemical composition (%)           

SiO2       29

Al2O3    65