KERATECH

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Ceramic fiber shapes

Ceramic fiber special shapes are available in a wide variety of shape configurations. 

Specifications LD-2300 LD-2600 LD-2800 LD-3000 MD-2300 MD-3000 HD-2300
Use Temperature  
Maximum Use °C 1260 1425 1538 1650 1260 1650 1260
Continuous Use °C 1149 1316 1425 1540 1149 1540 1149
Melting Point °C 1732 1780 1850 1815 1732 1815 1732
Density  
kg/m³ 256-320 256-320 256-320 256-320 336-400 336-400 416-480
Thermal Shrinkage (%) 24Hrs.@1200°C  
  2-3 2-3 1-2 @1540°C  <4 1-2 @1540°C <4 1-2
Thermal Conductivity  W/m°K  
316°C 0.07 0.07 0.07 0.07 0.09 0.09 0.13
538°C 0.09 0.09 0.09 0.09 0.10 0.12 0.15
760°C 0.12 0.12 0.12 0.14 0.13 0.15 0.17
1094°C 0.17 0.17 0.17 0.20 0.17 0.21 0.20
Chem. analysis  (%)  
Al2O3 39-41 48-50 63-65 63-65 45-47 71-73 43-45
SiO2 52-54 45-47 32-34 35-37 44-46 27-29 47-49
Other 2-3 1-2 1-2   2-3   2-3
P.P.I 4-6 4-6 5-6 4-6 4-5 4-6 4-5
Fiber Diameter (mm) 2-4 2-4 2-4 2-3 2-4 2-3 2-4

 

Features Typical Applications
> Low thermal conductivity, saves fuel. > Refractory lining for industrial furnaces in walls, roofs, doors, stacks, etc.
> Very low heat storage, fastrer heat and cool-down reducing cycle times. > Combustion chamber liners, boilers and heaters.
> Light weight-replaces heavy back-up insulations, less steel required. > Back-up insulation for brick and monolithic refractories.
> Excellent thermal shock resistance. > Transfer of molten aluminum and other non ferrous metals.
> Resistant to hot gas erosion. > Expansion joint boards.
> Resists most chemical attacks. > Barrier against flame or heat.
> Easy to cut, handle and install. > Hot face layer for high velocity or abrasive furnace atmosphere.
> Low sound transmission.
> Resist penetration by molten aluminum and other non ferrous metals.
> Contains no asbestos.