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crucible, Zirconia, tube, ceramic, Alumina, Manufacturer and Supplier - China(CN)
Alumina Thermocouple Protection Tubes (014)
TYPICAL PHYSICAL PROPERTIES
AL2O3 %Composition 60 75 80 85 92 95 99 99.8
Density]g/cm3^ 3.0 3.1 3.3 3.4 3.6 3.7 3.81 3.91
Flexural Strength(MPa) 205 280 215.7 230 312 304 340 370
Thermal Expansion
(10-6/J)
]25-800J^ 7.1 7.6 7.6 7.6 7.5 7.3 7.6 7.6
Thermal Conductivity
[w/(m.R)] 16 17 17 17 18 20 34 35
Dielectric Strength
(KV/mm) 10 10 10 10 10 10 10 10
Resistivity ([.cm)
20J 1014 1014 1014 1014 1014 1014 1014 1014
300J 1013 1013 1013 1013 1013 1012 1010 1010
Max. Service Temp. 1350J 1100J 1300J 1350J 1500J 1600J 1700J 1800J
Hardness (Moh'sscale) 7.5 7.5 7.5 7.5 8.5 8.8 9 9
@ 1800 1700 1800 1850 1920 2000 2030 2040
