Alumina Ceramic Tube, Alumina Tube, Alumina Furnace Tube manufacturer / supplier in China, offering Al2O3 Alumina Ceramic Tube for Furnace Processing, High Purity Alumina Industrial Ceramic Custom Tube Parts, 99% 99.3% 99.7% High Purity Alumina Ceramic Screw Thread Parts and so on.
Min. Order / Reference FOB Price | |
---|---|
1 Piece | Contact Supplier |
Local Area: | Jinzhou, Liaoning, China |
---|---|
R&D Capacity: | OEM, ODM, Other |
Payment Terms: | T/T, PayPal |
Refractoriness (℃): | Max 1800c |
---|---|
Shape: | Conical/Straight/Square |
Material: | 99.3%-99.7% Alumina |
WITH HIGH REFRACTORINESS, GOOD CORROSION RESISTENCE AND CHEMICAL STABILITY ETC PROPERTIES, CERAMIC CRUCIBLES ARE MAINLY USED IN metaLLURGY, CHEMICAL, ELECTRONIC, GLASS, PAPER, ETC INDUSTRIES.
AND WE ALWAYS EXPORT TOO MANY CRUCIBLES TO THE FAMOURS UNIVERSITIES AND LABORATORIES
OUR QUALITY CAN PASS THE GERMAN AND JAPAN STANDARD WITH THE CERTIFICATE:DIN43724/DIN43725/DIN40680.
NO.
Property
Unit
Alumina
1
Al2O3
%
>99.3
2
SiO2
%
-
3
Density
g/cm3
3.88
4
Water absorption
%
0.01
5
Cold compressive strength
MPa
350
6
20ºC leakage rates
Torr/L.sec
<10-11
7
Twisting in high temperature
mm
0.2 allowed in 1600ºC
8
Bonding in high temperature
not bonded in 1600ºC
9
20-1000ºCcoefficientofthermalexpansion
mm.10-6/ºC.m
8.2
10
Thermal conductivity
W/m.k
25
11
Electric insulation strength
KV/mm
20
12
20ºCdirect current
insulation resistance
Ohm/cm
1014
13
High-temperature
insulation resistance
1000ºC MΩ
≥0.08
1300ºC MΩ
≥0.02
14
Thermal shock resistance
4 times not cracked in 1550ºC
15
Maximum working temperature
ºC
1800