NK.IS.1028

 

 

Type of Product: Insulating Fire Brick (Grade : 28 )

 

 

Physical Properties:

Max Service Temperature (˚C)

1540

Bulk Density (Kg/m3)

1000 – 1100

Cold Crushing Strength (Kg/Cm2)

≥ 25

Modulus of Rupture (Kg/Cm2)

≥ 8

Linear shrinkage after reheating at 1400°C for 24 hours (%)

< 2

 

 

Thermal Conductivity (Kcal/m.h.˚C):

@ 400 ˚C

0.40 – 0.42

@ 600 ˚C

0.42 – 0.44

 

 

Chemical Analysis (%):

Al2O3

SiO2

Fe2O3

63 – 66

29 – 32

0.9 – 1

 

 

–  The above data are typical of the properties of commercial standard brick.

–  The data are subject to reasonable variations and therefore should not be used for specification purposes.

–  ASTM Test Methods, where applicable, used for determination of data.