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China-Yixing Longly Refractories 95 Alumina Ceramic Tubes & Rods

Category Ceramic , Oxide , Aluminum Oxide
Manufacturer China-Yixing Longly Refractories Co. Ltd
Trade Name
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF China-Yixing Longly Refractories 95 Alumina Ceramic Tubes & Rods.pdf
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Material Notes:
LONGLY's alumina ceramic tubes and rods (the tolerances of +/- 0.02mm could be reached by mechanical or electronic finishing or mirror surface finishing) have high hardness, wear resistance, insulation and high temperature resistance. Alumina ceramic tubes are mainly applicable to the material conveying with wear resistant and heavy scouring resistant demands, such as material conveying pipelines for coal-fired power generation, metallurgical and geological industries. Meanwhile they can be used as fuse insulating tube on the electric and electronic appliances. Alumina ceramic rods are used as resistor's ceramic matrix and ceramic top pillar on two-metal thermostat.Information Provided by China Yixing Longly Refractories Co. Ltd
Physical Properties Metric English Comments
Bulk Density 3.55 - 3.65 g/cc
0.128 - 0.132 lb/in³
Water Absorption <= 0.050 %
<= 0.050 %
Mechanical Properties Metric English Comments
Hardness, Mohs 9.0
9.0
Flexural Strength >= 520 MPa
>= 75400 psi
cold bending
Compressive Strength >= 500 MPa
>= 72500 psi
Ambient
Thermal Properties Metric English Comments
CTE, linear 6.20 - 7.60 µm/m-°C

@Temperature 25.0 - 800 °C
3.44 - 4.22 µin/in-°F

@Temperature 77.0 - 1470 °F
Thermal Conductivity 21.0 W/m-K
146 BTU-in/hr-ft²-°F
Maximum Service Temperature, Air >= 1500 °C
>= 2730 °F
Component Elements Properties Metric English Comments
Al2O3 92 - 96.5 %
92 - 96.5 %
Electrical Properties Metric English Comments
Volume Resistivity >= 1.00e+15 ohm-cm

@Temperature 100 °C
>= 1.00e+15 ohm-cm

@Temperature 212 °F
Dielectric Strength 15.0 kV/mm
381 kV/in
Insulating Strength
17.2 - 20.3 kV/mm
437 - 516 kV/in
DC Breakdown Strength
Descriptive Properties Value Comments
Refractoriness (°C) >2000
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