ALTRA® KVS HIGH-TEMPERATURE

ALTRA® KVS HIGH-TEMPERATURE VACUUM-FORMED BOARDS AND SHAPES

ALTRA® KVS high-temperature vacuum-formed products are available in formulations for service temperatures up to 1800°C. ALTRA® KVS boards and shapes feature low thermal conductivity, excellent thermal shock resistance, high-purity, good machinability, 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 unfired or pre-fired, resulting in an
organic-free composition.

All ALTRA® grades are available in boards, tubes, and other
vacuum-formed shapes.

STANDARD BOARD SIZE: 24” x 36”, Thickness 1”, 1 ½ “ and 2” Other board sizes and thickness available upon request.

 

ALTRA® KVS HIGH-TEMPERATURE VACUUM-FORMED BOARDS AND SHAPES
Properties Units KVS
121
KVS
124
KVS
141
KVS
144
KVS
161
KVS
164
KVS
174/400
KVS
184/400
Classification
Temperature

Service
Temperature
°F
°C

°F
°C
2300
1260

2012
1100
2300
1260

2012
1100
2600
1430

2372
1300
2600
1430

2372
1300
3000
1650

2732
1500
3000
1650

2732
1500
3092
1700

3092
1700
3272
1800

3272
1800
Density lbs/ft³
(kg/m³)
18
(300)
18
(300)
18
(300)
18
(300)
18
(300)
18
(300)
25
(400)
25
(400)
Organic
Content
WT% 4 0 4 0 4 0 0 0
Linear
Shrinkage

24 hrs @
Temperature
“+” indicates
growth
% 3% @
1100°C
3% @
1100°C
3.7% @
1250°C
2% @
1250°C
2% @
1250°C
1% @
1500°C

2% at
1600°C
+0.2 @
1600°C

0.3% @
1700°C
0.1% @
1700°C

0.8% @
1800°C
Chemical
Composition

Al2O3

SiO2

% 50
49
50
49
55
44
55
44
65
34
65
34
81
19
80
20
Thermal
Conductivity


752°F(400°C)
1112°F(600°C)
1472°F(800°C)
1832°F(1000°C)
2192°F(1200°C)
2552°F(1400°C)

BTUin/
hrft² °F
(W/mK)
0.62(0.09)
0.83(0.12)
1.04(0.15)
1.32(0.19)
1.73(0.25)
2.36(0.34)
0.62(0.09)
0.83(0.12)
1.04(0.15)
1.32(0.19)
1.73(0.25)
2.36(0.34)
0.62(0.09)
0.83(0.12)
1.04(0.15)
1.32(0.19)
1.66(0.24)
2.15(0.31)
0.62(0.09)
0.83(0.12)
1.04(0.15)
1.32(0.19)
1.66(0.24)
2.15(0.31)
1.18(0.17)
1.25(0.18)
1.39(0.20)
1.80(0.26)
2.36(0.34)
3.05(0.44)
1.18(0.17)
1.25(0.18)
1.39(0.20)
1.80(0.26)
2.36(0.34)
3.05(0.44)
0.97(0.14)
1.18(0.17)
1.39(0.20)
1.66(0.24)
1.94(0.28)
2.43(0.35)
0.97(0.14)
1.18(0.17)
1.39(0.20)
1.73(0.25)
2.01(0.29)
2.29(0.33)


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