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Product Description
 | Insulation Alumina ceramic part 95% alumina ceramic delivers exceptional electrical insulation with volume resistivity exceeding 10^14 Ω·cm at room temperature and maintains dielectric strength of 15–20 kV/mm, ensuring stable performance under high-voltage stress. |
Alumina ceramic introduction: It retains reliable insulating properties up to 1500°C while resisting arcing and tracking, making it ideal for thermocouple sheaths, heater insulators, and high-temperature electronic substrates. | |
 | Advantages of ceramic insulator Combines high insulation with 1500°C continuous service temperature, flexural strength of 300–350 MPa, and excellent chemical inertness, offering a cost-effective alternative to 99% alumina for most industrial insulation needs. |
Insulating alumina ceramic application: Widely used for thermocouple protection tubes, cartridge heater insulators, spark plug bodies, thick-film substrates, and high-voltage switchgear components requiring reliable dielectric isolation. |  |
Alumina Purity | 92% | 95% | 96% | 99% | 99.6% |
颜色 Color | White 白色 | White 白色 | White 白色 | Ivory White 象牙白 | White 白色 |
体积密度 Volume density(g/cm3) | 3.45 | 3.5 | 3.7 | 3.75 | 3.9 |
吸水率 Water Absorption | 0 | 0 | 0 | 0 | 0 |
抗弯强度 Flexural Strength | 300MPa | 300MPa | 320MPa | 330MPa | 330MPa |
维氏硬度 Vickers hardness | 1300 | 1400 | 1400 | 1800 | 1800 |
介电常数 Dielectric Constant (at 1MHZ 25℃) | 10 | 10 | 10 | 10 | 10 |
弹性模量 Modulus of elasticity | 350GPa | 350GPa | 350GPa | 370GPa | 370GPa |
热导率 thermal conductivity (30℃) | 18W/(m·K) | 24W/(m·K) | 24W/(m·K) | 25W/(m·K) | 28W/(m·K) |
体积电阻率 Volume resistivity | 1014Ω•cm | 1014Ω•cm | 1014Ω•cm | 1014Ω•cm | 1015Ω•cm |
介电强度 Dielectric strength | 20KV/mm | 20KV/mm | 20KV/mm | 20KV/mm | 30KV/mm |
Company Profile
Packaging & Shipping
Packing Details | We will packing by professional export packing,safety against breakage, finally into the wooden cases/ carton/pallet or customized package. We have ERP authentication. |
Delivery Details | We can deliver by SEA,air,rail transportation,the China-Europe Railway Express etc. TNT, DHL,UPS, FEDEX, EMS，S.F EXPRESS etc. |
| 1. Sample service | 2. Optimal price | 3. Customized logo |
| 4. Fast feedback | 5. Customized size | 6. Safety package |
| 7. ISO9001 | 8. Aftersale service | 9. Low procurement risk |
