Typical Technical Parameters
 
INSULATING BRICKS
 
Product Brand AI2
O3%Min.
Fe2
O3%Max.
B.D.
gms/
cc Min.
A.P.%Max. C.C.S. kgs/
cm2 Min.
P.L.C. % Temp OC/.
hrsMax.
Thermal
conductivity Kcal/m/
hrs/350 OC Max.
Service
TempOC
I.S.
Equavalent
RH-INS-35 LWI # 35 2.0 0.6 to 0.70 702 10 2%
1200 OC/2hrs
0.20 1250 I.S. 2042
Type III
RH-INS-35 CPI # 35 2.0 0.75 to 0.85 652 15 2%
1250 OC/2hrs
0.22 1300  
RH-INS-35 # 35 1.8 0.9 to 1.0 652 20 2%
1250 OC/2hrs
0.27 1300 I.S. 2042
Type II
RH-INS HFI # 35 2.0 1.0 to 1.1 60 30 2%
1200 OC/2hrs
0.28 1200  
RH-INS HFK # 45 1.5 0.95 to 1.05 58 30 2%
1350 OC/2hrs
0.30 1400 I.S. 2042
Type I
 
# Bricks are offered from Dhandbad Region.
 
PARTICULARS MICA LIGHT WEIGHT FIRE CLAY
COLD FACE HOT FACE HIGH
ALUMINA
  MRM 500* MRM 600* MRM 700* MRCF III* MRIB II* MRHF I* MRHA 40*
Bulk Density gm / cc 0.475-0.53 0.57-0.63 0.700 0.75-0.80 0.85-0.95 1.0-1.1 1.1-1.2
Apparant Porosity % 80 75 72 70 65 60 60
Cold Compressive Strength Kg/cm2 7 9 12 15 18-24 40 40
Thermal conductivity in K. Cal at Hot Face Temp.              
400OC
600OC
800OC
0.11
0.14
0.16
0.14
0.16
0.175
0.16
0.175
0.19
0.18
0.19
0.20
0.21
0.23
0.25
0.24
0.28
0.34
0.26
0.31
0.35
P.L.C. % at OC for 5 hours () 1.5 at
950OC
() 1.5 at
1000OC
() 1.5 at
1000OC
() 1.5 at
1000OC
() 1.5 at
1100OC
() 1.5 at
1200OC
() 1.5 at
1200OC
Max. Safe Working Temp. 1000OC 1050OC 1050OC 1100OC 1200OC 1350OC 1500OC
P.C.E. - - - - 27 -28 30 32
Al2O3 % 36 36 36 28 30 32 42
SiO2 % 48 48 48 60 62 60 50
Fe2 O3 % 2 2 2 1.5 1.5 1.5 1
# Bricks are offered from Bhilwara Region.
NOTE :
  1. Data given are typical of machine pressed standard bricks.
  2. Values of A.P.% and CCS (kg/cm2) are arthmatic mean of individual results.
  3. Size tolerance 1.5% or 2 mm whichever is greater.
  4. Besides the products listed in the catalogue, we are having sound technical expertise to meet the customers requirements.
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