Insulating Bricks of Hot And Cold Face Grades
INSULATING BRICKS (IS-2042)
| Properties | Grade A [JRI-A] | Grade B [JRI-B] | Grade C [JRI-C] |
|---|---|---|---|
|
Bulk Density (gm/cc, max.) |
1.00 |
0.90 |
0.75 |
|
Apparent Porosity (%, min.) |
60 |
60 |
65 |
|
Cold Crushing Strength (kg/cm2, min.) |
20 |
15 |
7 |
|
Pyrometric Cone [ASTM] No. (min.) |
32 |
27 |
|
|
Suitable for temperatures up to (ºC) |
1500 |
1250 |
850 |
|
Thermal Conductivity at Hot Face temperature of 600ºC (kcal/m/hr/ºCmax) |
0.35 |
0.23 |
0.20 |
|
PLCR (ºC/3 hours, max.) |
±1.5 at 1250ºC |
±1.5 at 1200ºC |
±1.5 at 1000ºC |
MICA INSULATING BRICKS
| Properties | Grade A [JRMI-A] | Grade B [JRMI-B] | Grade C [JRMIC] | |
|---|---|---|---|---|
|
Bulk Density (gm/cc) |
0.475 ~ 0.530 |
0.570 ~ 0.630 |
0.700 |
|
|
Apparent Porosity (%, min.) |
80 |
75 |
72 |
|
|
Cold Compressive Strength (kg/cm2min) |
7 |
9 |
12 |
|
|
Thermal Conductivity
(kcal/m/hr/ºC, max.)
|
400ºC |
0.11 |
0.14 |
0.16 |
|
600ºC |
0.14 |
0.16 |
0.175 |
|
|
800ºC |
0.16 |
0.175 |
0.19 |
|
|
PLC (% at ºC for 5 hours) |
-1.5 at 950ºC |
-1.5 at 1000ºC |
||
|
Maximum Safe Working TemperatureºC |
1000 |
1050 |
1050 |
|
|
Al2O3 (%) |
36 |
|||
|
SiO2 (%) |
48 |
|||
|
Fe2O3 (%) |
2 |
|||
NOTE :
- Provided above are average test data, subject to reasonable variations
ABOUT US
J R Refractory has been serving a variety of Indian industries for over two decades with superior quality refractory products, including bricks, castable and cements.
J R REFRACTORY
OUR PRODUCTS
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CONTACT US
- 406, Aditya Plaza, Gaurav Path Road, Near Jodhpur Cross Roads, Satellite, Ahmedabad, Gujarat, India -380015
- info@jrrefractory.com
- +91 9825012011