Typical Applications of Insulating Fire Bricks (IFB):

  • Cracking Furnace, Conversion Furnace
  • Heating equipment or Heating Furnace, Even-heating Furnace, Heat-processing Furnace
  • Refining equipment
  • Hot Blast Stove
  • Resistance Furnace
  • Tunnel Kiln, Shuttle Kiln, Bell-cover Kiln, Glass-pool Kiln

IFB's Excellent Features:

  • High heat resistance and durability
  • Excellent resistance to thermal shock
  • Low thermal conductivity
  • Excellent construction strength
  • Particularly suited to highest temperature applications above 1600°C (2800°F)
  • Structural integrity capable of dealing with erosive and abrasive environments

 

 

Insulating Fire Bricks (IFB)

Insulating Fire Bricks (IFB)

High quality Insulating Fire Bricks (IFB) with low factory direct prices are available in Houston, TX! KT Refractories has a complete range of IFBs in stock: Insulating Firebricks of 2300°F, Insulating Firebricks of 2600°F, Insulating Firebricks of 2800°F. Standard straight IFBs are available in both 2.5 inches and 3 inches thickness! IFBs are important high temperature insulation products for many industrial applications. Our mullite insulating Firebricks (IFBs) are made from high-grade, high purity refractory materials. Insulation Firebricks (IFB) are compressed in a vacuum and sintered under high temperature. Consistent high quality, high strength at low prices is guaranteed.

IFBs are great energy saving products for industries of Ceramics, CPI, Aluminum, Iron and Steel, glass making, etc. Typical applications for IFBs include: lining and back lining of various furnaces in the industries of metallurgy, petrochemical, ceramics, machinery, and building materials. Insulating Firebrick (IFB) can be used in applications listed on left side of this page.

Insulating Fire Bricks Data Sheet:

Description

Gradea23

Grade 26

Grade 28

Grade 30

Chemical Composition (%)

Al2O3

42

56

67

73

SiO2

55

41

30

24

Fe2O3

≤1

≤0.8

≤0.7

≤0.7

K2O + Na2O

1.1

1.7

1.7

1.7

Physical Properties

Density (kg/m3)

600

800

900

1000

Classification Temperature (°C)

1300

1400

1500

1550

Cold Crushing Strength (MPa)

1.2

1.8

2.5

3.3

Modulus of Rupture (MPa)

1

1.7

2.3

3.1

Permanent Linear Change (%) x 24hrs

≤0.6

≤0.6

≤0.8

≤0.9

Thermal Expansion (%) 1000°C

0.5

0.52

0.52

0.53

Thermal Conductivity (W/m.k) 

350 °C

0.18

0.25

0.33

0.38

400 °C

0.2

0.29

0.35

0.4

600 °C

0.24

0.32

0.37

0.42