ALTRA® KERASETTER ULTRA HIGH-DENSITY

ALTRA® KERASETTER ULTRA HIGH-DENSITY VACUUM-FORMED BOARDS

ALTRA® KERASETTER machinable board products are available in formulations for service temperatures up to 1700°C. ALTRA® KERASETTER boards are available for high-temperature, oxidizing environments (KVS) or high-temperature, reducing environments (KVR). ALTRA® boards are formed from alumina or mullite polycrystalline fibers with appropriate inorganic and organic binders. All grades are pre-fired to 1000°C or greater, resulting in an organic-free composition. Possible applications include low mass sintering setters.





ALTRA® KERASETTER ULTRA HIGH-DENSITY VACUUM-FORMED BOARDS
Properties Units KVS 174/1000 KVS 174/1500 KVR 164/1002 KVR 164/1402
Classification
Temperature

Service
Temperature
°F
°C

°F
°C
3092
1700

3092
1700
3092
1800

3092
1700
2912
1600

2822
1550
2912
1600

2822
1550
Density lbs/ft³
(kg/m³)
62
1000
93
1500
62
1000
87
1400
Linear Shrinkage
24 hrs @ Temperature
“+” indicates growth
% +0.5@1600°C
+0.2@1700°C
3.7@1750°C
+0.3@1600°C
+0.4@1700°C
0.3@1750°C
0.0@1400°C
0.2@1500°C
0.5@1600°C
0.0@1400°C
0.1@1500°C
0.4@1600°C
Thermal Conductivity
Hot Wire Method

400°C

600°C

800°C

1000°C

1200°C

1400°C

W/mK

0.243
0.260
0.275
0.294
0.314
0.331


0.295
0.321
0.327
0.337
0.340
0.356


0.243
0.260
0.275
0.294
0.314
0.331


0.295
0.321
0.327
0.337
0.340
0.356
Chemical
Composition

Al2O3

SiO2

% 89
11
89
11
>97
<3
>97
<3
Fiber Type   Mullite Mullite Alumina Alumina


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