ALTRA® KVS HIGH-TEMPERATURE

ALTRA® KVS HIGH-TEMPERATURE VACUUM-FORMED CYLINDERS

ALTRA® KVS high-temperature vacuum-formed cylinders are available in formulations for service temperatures up to 1800°C. ALTRA® KVS cylinders feature low thermal conductivity, excellent thermal shock resistance, high-purity, and good density uniformity. ALTRA® KVS is formed from alumina and/or alumino-silicate fibers with appropriate inorganic and organic binders. ALTRA® KVS products are available in two forms: pre-fired to 1000°C resulting in an organic-free, smoke-free composition or with an organic binder (dried only, no pre-firing) for increased room temperature strength.

 

ALTRA® KVS HIGH-TEMPERATURE VACUUM-FORMED CYLINDERS
Properties Units ALTRA® GRADE
KVS
124
KVS
144
KVS
164
KVS
164/302
KVS
174/400
KVS
184/400
Classification
Temperature

Service
Temperature
°F
°C

°F
°C
2300
1260

2012
1100
2600
1430

2372
1300
3000
1650

2732
1500
3000
1650

2912
1600
3092
1700

3092
1700
3272
1800

3272
1800
Density lbs/ft³
(kg/m³)
18
(300)
18
(300)
18
(300)
18
(300)
25
(400)
25
(400)
Linear Shrinkage
24 hrs @ Temperature
“+” indicates growth
%
2% @
1100°C

2% @
1250°C

1% @
1500°C

2% @
1600°C

+1% @
1600°C

+0.2 @
1600°C

0.3% @
1700°C

0.1% @
1700°C

0.8% @
1800°C
Chemical
Composition

Al2O3
SiO2

% 50
49
55
44
65
34
78
22
81
19
80
20


APPLICATIONS INCLUDE: insulation for semiconductor wafer processing furnaces, dental furnaces, fiber optic drawing furnaces, ceramic sintering furnaces, and other high-temperature processing

SIZES: available from ½" ID to 30" ID with wall thicknesses up to 3"

Available as a solid tube or with any combination of vertical and horizontal z-joints or butt joints

All ALTRA® grades are also available in boards and other vacuum-formed shapes



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