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Insulating Firebrick 2017-05-15T12:50:46+00:00

Insulating Firebrick

We can help you select the insulating firebrick that is right for your job

Allied carries the BNZ line of insulating firebrick (IFB), designed to meet a wide range of needs. BNZ bricks are ideal for hot face linings or as backup behind other refractories in industrial applications. There is an IFB grade for your application’s thermal shock or strength, sizing and temperature requirements.

Benefits:

  • Lightweight and high insulating for thinner furnace walls
  • Increased efficiency, decreased costs
  • Strength that enables self-support
  • Low impurities
  • Consistent, machined sizes for tight linings
Brick Type Chemical Analysis ASTM Classification Density (g/cm3) Cold Crush Strength (MPa) Temperature use limit
BNZ-20 Al2O3 38.8%
SiO2 47.7%
CaO 10.9%
20/23 0.577 (36lb/ft3) 0.7 1260°C (2300°F)
BNZ-23 Al2O3 38.8%
SiO2 47.8%
CaO 10.9%
23 0.593
(37lb/ft3)
0.9 1260°C (2300°F)
BNZ-23A Al2O3 38.0%
SiO2 45.0%
CaO 15.0%
23 0.529
(33lb/ft3)
1.0 1260°C (2300°F)
BNZ-23 HS Al2O3 38.8%
SiO2 47.8%
CaO 10.9%
23 0.673
(42lb/ft3)
1.3 1260°C (2300°F)
BNZ-26 Al2O3 47.0%
SiO2 48.6%
26 0.769
(48lb/ft3)
1.9 1427°C (2600°F)
BNZ-26-60 Al2O3 60.4%
SiO2 36.1%
26 0.801
(50lb/ft3)
2.0 1538°C (2800°F)
BNZ-28 Al2O3 67.0%
SiO2 30.5%
28 0.881
(55lb/ft3)
2.3 1610°C (2930°F)
BNZ-3000 Al2O3 69.9%
SiO2 28.1%
30 1.04
(65lb/ft3)
3.0 1649°C (3000°F)
BNZ-32 Al2O3 78.3%
SiO2 20.7%
32 1.20
(75lb/ft3)
3.1 1760°C (3200°F)
C-22Z
(Specialty)
Al2O3 38.8%
SiO2 47.8%
CaO 10.9%
0.737
(46lb/ft3)
2.2 1260°C (2300°F)
BNZ-24
(Specialty)
Al2O3 40.0%
SiO2 47.2%
CaO 10.3%
0.593
(37lb/ft3)
0.9 1316°C (2400°F)
BNZ-25
(Specialty)
Al2O3 34.0%
SiO2 63.0%
0.721
(45lb/ft3)
1.8 1371°C (2500°F)
BNZ-26 HS
(Specialty)
Al2O3 44.7%
SiO2 49.9%
0.913
(57lb/ft3)
4.0 1427°C (2600°F)

Other properties available upon request.

Skamol Moler Insulating Bricks
Brick Type Chemical Analysis ASTM Classification Density (kg/m3) Cold Crush Strength (MPa) Temperature use limit
M – EXTRA Al2O3 9%
SiO2 77%
Fe2O3 7%
Unpublished 950
(59 pcf)
18 1000°C (1832°F)
SUPRA Al2O3 9%
SiO2 77%
Fe2O3 7%
Unpublished 750
(47 pcf)
7.5 950°C (1742°F)
POROS Al2O3 9%
SiO2 77%
Fe2O3 7%
Unpublished 650
(41 pcf)
3 950°C (1742°F)
HIPOR 450 Al2O3 6.1%
SiO2 86%
Fe2O3 2.8%
Unpublished 450
(28 pcf)
1.5 950°C (1742°F)

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