INSULATION FIREBRICKS
The Vitcas ® range of Insulation Firebricks are made from specially formulated high-purity refractory clays with varying alumina contents in a manufacturing process which results in a controlled pore structure. They are much less dense and therefore lighter in weight than fireclay bricks. The low thermal mass makes them most suitable for situations where heat storage is to be avoided.
Examples of Applications:
Key Features:
• Primary hot face linings • Back-up insulation for furnaces and kilns • Flue insulation • Sulphur recovery equipment • Hot blast stoves
• Low iron content • Resistance to thermal shock • Low density • Low heat storage • High insulating properties • Energy saving
T ECHNICAL D ATA
Grade Classification Temperature Colour Chemical Analysis (%) Al 2 O 3 SiO 2 Fe 2 O 3
23 1260°C /2300°F White
26 1430°C /2600°F White
28 1540°C /2800°F White
30 1650°C /3000°F White
38.0 43.0 0.9 1.2 15.2 0.3 600 1.20
57.0 39.0
62.0 37.0 0.6 0.1 0.1 0.1 900 2.10
72.0 26.0
0.7 0.1 0.1 0.260 800 1.60
0.5 0.1
TiO 2 CaO MgO Bulk Density kg/m 3
- - 1000 2.20
Cold Crushing Strength (MPa) Thermal Conductivity (W/mK) 600°C / 1110°F 1000°C / 1830°F Permanent Linear Change
0.14 0.19
0.27 0.33
0.32 0.36
0.39 0.41
<0.6 - - -
- <0.6
- - <0.8 -
- - - <0.8
(3h) 1260°C / 2300 °F (3h) 1370°C / 2500 °F (3h) 1470°C / 2670 °F (3h) 1530°C / 2780 °F
- -
Note: The information only shows the most relevant product grades. This is not an exhaustive list of all the products which are available.
www.vitcas.com
20
Tel: +44 (0) 117 911 7895
Made with FlippingBook Digital Publishing Software