Refractoriness (℃): | 1770< Refractoriness< 2000 |
---|---|
Feature: | Long Time Materials |
Type: | Refractory Material |
Shape: | Pipe |
Material: | Alumina |
kleur: | roze en wit |
Leveranciers met geverifieerde zakelijke licenties
We use our advanced ceramic materials to make extruded ceramic rods and extruded ceramic tubes, primarily for use in temperature measurement equipment for the Oil and Gas Industry and other industrial heating applications. They are also used in some specialist Aerospace applications.
Single Bore alumina tubes, 95%-99.7% purity, and 10-2500mm in length with a single bore all the way through.
Item | Unit | AL99.7% | AL99 | AL95 |
Al2O3 content | - | 99.7% | 99% | 95% |
Color | - | Ivory white | Ivory white | Ivory white,white |
Air tightness | - | airtight | airtight | airtight |
Density | g/cm3 | 3.94 | 3.8 | 3.7 |
Straightness | - | 2‰ | 2‰ | 2‰ |
hardness | Moh's hardness | 9 | 9 | 8.8 |
Water absorption | ≤0.2 | ≤0.2 | ≤0.2 | ≤0.2 |
Flexural strength(20ºC) | Mpa | 375 | 340 | 304 |
Compressive strength(20ºC) | Mpa | 2300 | 2210 | 1910 |
Thermal expansion coefficient (25ºC-800ºC) | 105/ºC |
7.6 | 7.6 | 7.6 |
Insulation strength(thickness:5mm) | AC-kv/mm | 10 | 10 | 10 |
Dielectric loss 25ºC@1MHz | - | <0.0001 | <0.0006 | <0.0004 |
Volume resistivity (20ºC) (300ºC) |
Ω·cm3 |
>1014 >1010 |
>1014 >1010 |
>1014 >1012 |
Long-term use temperature | ºC | 1700 | 1600 | 1200 |
Thermal conductivity(25ºC) | W/moK | 35 | 34 | 20 |
Leveranciers met geverifieerde zakelijke licenties