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Cordierite ceramic tube is made of cordierite ceramic. Cordierite ceramic is a type of magnesium aluminum silicate with particularly good thermal shock properties. Cordierite also has low thermal conductivity and thermal expansion, while also being cost-effective. It is often used as a structural ceramic for kiln furniture applications, and it also finds uses in other applications where rapid temperature changes take place.
Advanced Ceramic Materials (ACM) is a trustworthy supplier of cordierite ceramic products.
* Excellent thermal shock properties
* Low thermal conductivity and thermal expansion
* Good mechanical strength
* Can be used up to approximately 1200°C
* Outstanding crack-resistance
|
Properties |
Units |
Test |
Value |
|
Physical |
|||
|
Chemical Formula |
– |
– |
2MgO-2Al2O3-5SiO2 |
|
Density, r |
g/cm3 |
ASTM C20 |
2.60 |
|
Color |
– |
– |
off-white |
|
Crystal Structure |
– |
– |
orthorhombic |
|
Water Absorption |
% @R.T. |
ASTM C373 |
0.02 – 3.2 |
|
Hardness |
Moh’s |
– |
7 |
|
Hardness |
knoop (kg/mm2) |
Knoop 100g |
— |
|
Mechanical |
|||
|
Compressive Strength |
MPa @ R.T. |
ASTM C773 |
350 |
|
Tensile Strength |
MPa @ R.T. |
ACMA Test #4 |
25.5 |
|
Modulus of Elasticity |
GPa |
ASTM C848 |
70 |
|
Flexural Strength (MOR) |
MPa @ R.T. |
ASTM F417 |
117 |
|
Poisson’s Ratio, u |
– |
ASTM C818 |
0.21 |
|
Fracture Toughness, KIc |
MPa x m1/2 |
Notched Beam Test |
— |
|
Thermal |
|||
|
Max. Use Temperature |
ºC |
No load cond. |
1371 |
|
Thermal Shock Resistance |
DT (ºC) |
Quenching |
500 |
|
Thermal Conductivity |
W/m-K @ R.T. |
ASTM C408 |
3.0 |
|
Coefficient of Linear Thermal Expansion, al |
mm/m-ºC (~25ºC through ±1000ºC) |
ASTM C372 |
1.7 |
|
Specific Heat, cp |
cal/g-ºC @ R.T. |
ASTM C351 |
0.35 |
|
Electrical |
|||
|
Dielectric Constant |
1MHz @ R.T. |
ASTM D150 |
4.7 |
|
Dielectric Strength |
kV/mm |
ASTM D116 |
5.11 |
|
Electrical Resistivity |
Wcm @ R.T. |
ASTM D1829 |
1014 |
Cordierite tubes have a wide range of industrial applications in electronics, electrical appliances, welding equipment, chemicals, machinery, railways, textiles, environmental protection, thermal engineering, instrumentation, mining machinery, post and telecommunications, and the defense industry.
