NK.CH.40S

 

 

Type of Product: Super Duty Fire Clay Brick

 

 

Physical Properties:

Refractoriness (˚C) 1745
Bulk Density (Kg/m3) 2180 – 2300
Porosity (%) 14 – 19
Cold Crushing Strength (Kg/Cm2) ≥ 340
Modulus of Rupture (Kg/Cm2) ≥ 80

 

 

 

Thermomechanical Properties:

Linear Change After heating at 1600° C ( % ) +1.0 to +1.5
Refractoriness Under load (°C)  > 1360
Reversible Liner Thermal Expansion at 1400°C ( % ) Approx 0.8

 

 

 

Chemical Analysis (%):

Al2O3 SiO2 Fe2O3 TiO2 Na2O+K2O+LiO2
40 – 42 51 – 53 1.9 – 2.1 1.8 – 2 0.9 – 1.1