KERATECH

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Ceramic fiber bulk

Bulk  and chopped is produced by the fusion of high purity alumina/silica raw materials in an advanced electric arc furnace. The fibers produced are exceptionally clean and consistent in quality and texture.

Properties LTS HPS HP HTZ RT HT
Max use limit °C 1000 1260 1315 1425 1260 1482
Continuous use limit °C 900 1160 1200 1325 1160 1380
Melting Point °C 1760 1760 1760 1760 1760 1760
Fiber diameter, microns
3,0 3,0 3,0 3,0 2,5 2,5
Fiber length, mm (in) 203(8) 203(8) 203(8) 203(8) 178 (7) 178 (7)
Chem. analys (%)  
Al2O3 42-46 45-46 44-50 33-37 46-48 58-54
SiO2 50-60 51-52 50-56 47-51 49-55 42-46
ZrO2       13-19    
Fe2O3 0,-1,5 0,1-0,2 0,1-0,2 0,1-0,2 0,8-1,2 0,1-0,2
TiO2 1,5-1,9 0,1-0,2 0,1-0,2 0,1-0,2 1,5-1,9 0,1-0,2

1260 Textile Grade Bulk Fiber

Typical Physical Properties

1260 HPT Bulk

1260 HPT Chopped

Color

White

White

Classification Temp, ºC

1260

1260

Continuous Use Limit, ºC

1160

1160

Melting Point, ºC

1760

1760

Shot Content, (Diameter <0,25mm)

<10%

<10%

Filament Diameter, microns

3 - 5

3 - 5

Chemical Analysis (%)
AL2O3

45 - 46

45 - 46

SiO2

51 - 52

51 - 52

Thermal Conductivity, W/moK (BTU-in/hr-ft2-oF)

Mean Temperature, 128 kg/m³ (8 lb/ft3)

@ 500 °F

0,06 (0,42)

0,06 (0,42)

@ 1000 ºF

0,12 (0,82)

0,12 (0,82)

@ 1500 ºF

0,19 (1,32)

0,19 (1,32)

@ 1800 ºF

0,24 (1,67)

0,24 (1,67)

@ 2000 ºF

0,28 (1,92)

0,28 (1,92)

Mean Temperature, 96 kg/m³ (6 lb/ft3)
@ 500 ºF

0,07 (0,48)

0,07 (0,48)

@ 1000 ºF

0,14 (0,97)

0,14 (0,97)

@ 1500 ºF

0,23 (1,57)

0,23 (1,57)

@ 1800 ºF

0,29 (1,98)

0,29 (1,98)

@ 2000 ºF

0,33 (2,27)

0,33 (2,27)

Features Typical Applications

> Low thermal conductivity.

> Packing expansion joints in high temperature furnaces
> Low heat storage. > Low mass kiln cars.
> Excellent thermal shock resistance. > Vacuum formed and moldable products.
> Use limit to 1482 ºC (2700 ºF)
> Low sound transmission.
> Contains no asbestos.