Property:
1. High resistivity
2. Moderate strength
3. Excellent electrical properties
4. Poor heat conductivity (thermal insulator).
5. Good resistance to thermal shock.
6. Low coefficient of thermal expansion.
7. Good mechanical stability.
Applications:
Heating element holders
Stand off insulators
Interlocking insulating beads
Splitbush insulators
Lamp bases and caps
Regulator parts
These beads are for protecting power lead wires with different size.
Material: White steatite ceramic, yellow steatite, alumina.
Item | Testing condition | Unit | Steatite |
Bulk density | g/cm 3 | ≥2.6 | |
Flexural Strength | N/m 2 ×10 3 | 1.37 | |
Coefficient of linear expansion | 20~800°C | ×10 -6 /°C | ≤8 |
Permittivity | 1MHz | ≤7.5 | |
10GHz | / | ||
Insertion loss | 1MHz | ×10 -6 | ≤8.0 |
10GHz | ×10 -6 | / | |
Bulk density resistance | 100°C | Ω@Cm | >10 12 |
Puncture strength | KV/mm | 20 | |
Thermal conductivity | 20°C | W/m@k | 2.9 |





