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Steatite Ceramic Rods

Steatite ceramic rod is based on natural raw materials consisting predominantly of magnesium silicate. It is marked by a high heat resistance, resistance to leakage current and dielectric strength, which is recommended as an insulation material in electrical engineering. Steatite ceramic rods is easily fabricated to close tolerances and is much less expensive than alumina ceramic rods.

Product Features:

1. Good dielectric strength
2. Tracking resistant
3. Heat resistance and form stability up to 1425°C
4. High mechanical strength
5. Non-combustible
6. Resistant to UV radiation

Product Parameters:

Properties Units Value
Density, r g/cm3 2.71
Color buff
Water Absorption % @R.T. 0.0 – 0.02
Hardness Moh’s 7.5
Compressive Strength MPa @ R.T. 621
Tensile Strength MPa @ R.T. 62
Modulus of Elasticity
(Young’s Mod.)
GPa 138
Flexural Strength (MOR) MPa @ R.T. 140
Max. Use Temperature
(* denotes inert atm.)
ºC 1425
Thermal Shock Resistance DT (ºC) 190
Thermal Conductivity W/m-K @ R.T. 2.9
Coefficient of Linear Thermal Expansion, al mm/m-ºC (~25ºC through ±1000ºC) 7.0
Specific Heat, cp cal/g-ºC @ R.T. 0.22
Dielectric Constant 1MHz @ R.T. 6.3
Dielectric Strength kV/mm 9.3
Electrical Resistivity Wcm @ R.T. 104

Application and After-Sales Service):


Heating element holders

Stand off Insulators

Interlocking Insulating Beads

Splitbush insulators

Lamp bases and caps

Regulator parts

Our steatite ceramic rods are exported to USA, Canada, Europe, and South America and Southeast Asia.

After-sales service:

Accept any repair of the product, help to improve technology for customer. And also provide long-term technical help and support for you.


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