Application: | Industrial Ceramic |
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Type: | Ceramic Parts |
Product Name: | Ceramic Tube Insulator |
Samples: |
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Customization: |
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Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
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Payment Method: | |
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Initial Payment Full Payment |
Currency: | US$ |
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Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
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Option Materials | various purities of alumina from 40% to 99.8% and steatite ceramic |
Outer diameter | 0.5 ~800 mm |
Length | 1~1000mm |
Roughness | To be Ra0.1 |
Surface treatment | Polished, Glazed, Metalized availability |
Cosmetic | Smooth surface without no contamination, deformation, and crack |
Datasheet of technical ceramic materials
Property | Units | Materials | ||
99.5%Al2O3 | 99%Al2O3 | 95%Al2O3 | ||
Density | g/cm3 | ≥3.85 | ≥3.80 | ≥3.60 |
Water absorption | % | 0 | 0 | 0 |
Hardness | HV | 1700 | 1700 | 1500 |
Flexural strength | Mpa | ≥379 | ≥338 | ≥320 |
Compressive strength | Mpa | ≥2240 | ≥2240 | ≥2000 |
Fracture toughness | Mpa m1/2 | 4-5 | 4-5 | 3-4 |
Max. service temperature (Non-loading) |
ºC | 1675 | 1600 | 1500 |
CTE (20-800ºC) | 1×10 -6 /ºC | 6.5~8.0 | 6.2~8.0 | 5.0~8.0 |
Thermal shock | T(ºC) | ≥250 | ≥200 | ≥220 |
Thermal conductivity(25ºC) | W/m.k | 30 | 29 | 24 |
Volume resistivity (25ºC ) | ohm. cm | >1 x 10 14 | >1 x 10 14 | >1 x 10 14 |
Insulation strength | KV/mm | 19 | 18 | 18 |
Dielectric constant(1Mhz) | (E) | 9.7 | 9.5 | 9.5 |
1. Comprehesive shaping methods from small-sizes to large-sizes, from simple configuration to complex shapes
2. Scientific & rigorous quality-control system and high precision inspection equipment
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