Cordierite ceramic rod is made of silicate ceramic cordierite (Mg2Al4Si5O18). Cordierite is a commonly used structure ceramic material that has the advantage of energy efficiency and high-temperature resistance. It is widely used on barbeque grills, burn ovens, convection ovens, gas ovens, rotary ovens, natural gas heaters, space heater crucibles, and various heating equipment, etc.
Advanced Ceramic Materials (ACM) is a trustworthy supplier of cordierite ceramic products.
Cordierite rod has the following characteristics:
* 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 rods have various industrial applications, such as electronics, electrical appliances, welding equipment, chemicals, machinery, railways, textiles, environmental protection, thermal engineering, instrumentation, mining machinery, post and telecommunications, and the defense industry.