Refractoriness (℃): | 1580< Refractoriness< 1770 |
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Feature: | Long Time Materials |
Type: | Refractory Material |
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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Suppliers with verified business licenses
Material options | Alumina |
Forming methods | Hot pressed |
Dimensional capability | Max. OD can be 50mm, long can be 300mm |
Dimensional tolerance | 1% of dimensions |
Surface treatment | Glazed or polished |
Secondary processing | Fine grinding |
Main characteristics of the ceramic ignition needle
1. High electrical insulation with high voltage resistance up to 18KV at leastThe Description of alumina ceramics
Aluminum Oxide Ceramic is widely used in many fields including mechanical, electronics, electrical, automotive, semiconductor, textile, etc. For good properties, more and more customers choose Alumina ceramic materials for their applications. Alumina Ceramic can be made to Ceramic Nozzles, Ceramic Sprayers Cyclones, Ceramic Linings, Milling Systems, Ceramic Thread guides, etc. Customized designs are very often to be made.Other types of ceramic ignition needle
Technical Datasheet of various advanced ceramic materials
General | Properties | Unit | 99.5% Al2o3 | 99% Al2O3 | 96% Al2O3 | Steatite | YTPZ ZrO2 |
SiC |
Mechanical | Volume Density |
G/cm 3 | ≥3.90 | ≥3.85 | ≥3.65 | ≥2.70 | ≥6.0 | ≥3.13 |
Hardness | HRA | 1700 | 1700 | 1500 | 800 | 1300 | 2500 | |
Porosity | % | 0 | 0 | 0 | 0 | 0 | 0 | |
Compressive Strength | Mpa | ≥2240 | ≥2240 | ≥2000 | ≥551 | ≥1990 | ≥ 2200 | |
Bending Strength |
Mpa | ≥379 | ≥338 | ≥320 | ≥190 | ≥1200 | ≥400 | |
Elastic Modulus |
Gpa | 370 | 350 | 303 | 110 | 210 | 400 | |
Thermal | Thermal Conductivity | W/m.K | 30 | 29 | 24 | 2.5 | 3 | 120~150 |
Coefficient of Thermal Expansion |
1*10 -6 m/k | 6.5~8.0 | 6.2~8.0 | 5.0~8.0 | 7.7~8.0 | 8.0~9.5 | 4 | |
Electrical | Insulation Breakdown | KV/mm | 19 | 18 | 18 | 10 | 17 | - |
Volume Resistivity | Ohm.Cm | >1*1014 | >1*1014 | >1*1014 | >1*1013 | >1*1011 | 5*10 6 |
Our advantage and strength
1.Own in-house comprehensive types of manufacturing equipment from raw material to precision machining.Q1: Is it available to produce customized products?
A: We support custom-made alumina ceramic tubes as per different dimensions, designs, surface treatment.Suppliers with verified business licenses