CeramSource provides a complete range of insulating firebrick (IFB) that offers unsurpassed performance and value for a wide variety of industries and applications. Different grades of insulating firebrick are manufactured according to international standards, and are suitable to operate in various temperatures and atmospheres up to 3000º F.
Features of Insulating Firebrick:
Excellent strength at ambient and elevated temperatures
High compressive strength
Every brick ground to precise dimensions
Very low levels of iron and other impurities
Lightweight and energy-efficient
Lower heat storage than denser refractories
Heats quickly and economically to operating temperature
Cools fast to speed periodic operations.
Typical Applications of Insulating Firebrick:
Glass Industries
Ceramics Industries
Electrolytic Aluminum Industries
Iron & Steel Industries
Non-Ferrous Metals Industries
Power Generation Industries
Insulating Firebrick Physical Properties
Grade
IN-23
IN-26
IN-28
IN-30
Working TEMP (°F)
2300
2600
2800
3000
Working TEMP (°C)
1230
1400
1510
1620
Denisty (lb/ft3) Kg/m3
(36) 580
(50) 800
(55) 880
(64) 1030
Cold crushing strength (Mpa) lb/in2
(1.8) 260
(2.2) 320
(2.5) 360
(2.5) 363
Modulus of Rupture (Mpa) lb/in2
(1.0) 145
(1.5) 220
(1.6) 230
(1.7) 250
Permanent Linear Change %
(after heating 24 hours @)
2246°F (1230°C)
0.0
2550°F (1399°C)
-0.4
2750°F (1510°C)
-0.9
2950°F (1620°C)
-1.3
Thermal Conductivity (Btu-in/ft2,hr,°F) W/mk
752°F
1.25
1.88
1.81
2.72
400°C
0.18
0.27
0.26
0.39
1112°F
1.39
2.09
2.02
2.93
600°C
0.20
0.30
0.29
0.42
1472°F
1.60
2.30
2.16
2.30
800°C
0.23
0.33
0.31
0.43
1832°F
1.81
2.51
2.37
3.07
1000°C
0.26
0.36
0.34
0.44
Insulating Firebrick Chemical Properties
Grade
IN-23
IN-26
IN-28
IN-30
Silica - SiO2
39.7%
39.1%
31.3%
24.8%
Alumina Al2O3
56.3%
57.2%
65.8%
73.0%
Titania - TiO 2
1.5%
1.1%
0.8%
0.4%
Iron Oxide - Fe2O3
0.7%
0.7%
0.7%
0.7%
Lime - CaO
0.4%
0.5%
0.2%
0.2%
Magnesia - MgO
0.4%
0.4%
0.2%
0.2%
Soda - Na2O
0.1%
0.2%
0.3%
0.1%
Potash - K2O
0.9%
0.8%
0.5%
0.6%
Data are avarage results of test conducted under standard procedures and are subject to variation. Results should not be used for specification purposes. Note: A material safety data sheet is available upon request. The information, recommendations and opinions set forth herein are offered solely for your consideration, inquiry and verification, and are not, in part or total, to be construed as constituting a warrant or representation for which we assume legale responsibility. Nothing contained herein is to be interpreted as authorization to practice patented invention without a license.
