High Temperature Resistant Alumina Ceramic Tubeindustrial Thermocouple Ceramic Protective Tubecorundum Insulating Tubevarious Specifications

• Refractoriness (℃): 1770< Refractoriness< 2000
• Feature: Long Time Materials
• Type: Refractory Material
• Shape: Pipe
• Material: High Pure Alumina
• Transport Package: Wooden Box
• Model NO.: CCN-002
• Specification: 95/99% Alumina
• Trademark: CCN
• Origin: China
• HS Code: 69091100
• Production Capacity: 50000000PCS/Year

Product Description

Product Description

Custom Alumina Products-Alumina Tubes

Outer Diameter:

6mm, 8mm, 10mm, 12mm, 15mm, 18mm, 20mm, 22mm,

24mm, 30mm, 35mm, 40mm, 60mm.

Custom Alumina Products-Alumina Tubes offer: 

Most of our Alumina tubes are produced to OEM order, please mark clearly height, bottom diameter, top diameter, wall thickness and any special requirements i.e. lips etc. To speed up quotations please supply a drawing and if appropriate, the name of the system in which they are to be used.

End type: both ends open, one end closed.
Regular dimension: Alumina insulated tubes, can be produced a single hole , double ,three and four-holes.

OD x ID(mm)	Series&length	OD x ID(mm)	Series&length	OD x ID(mm)	Series&length
0.7 x 0.3	99/997series ≤1000mm	7 x 4.5	95/99/997 series ≤2500mm	30 x 25	95/99/997 series ≤2500mm
0.8 x 0.4		8 x 4		40 x 30
0.9 x 0.4		9 x 6		50 x 40
1 x 0.5		10 x 4		60 x 50
1.1 x 0.6		10 x 7		70 x 60	95/99/997 series ≤2000mm
1.2 x 0.6		12 x 4		80 x 70
1.3 x 0.7		12 x 8		90 x 80
1.4 x 0.8		14 x 4		100 x 90
1.5 x 0.8	95/99/997 series ≤2500mm	14 x 10		110 x 100
2 x 1		15 x 11		120 x 110
3 x 2		16 x 12		150 x 140	95/99/997 series ≤1500mm
4 x 3		18 x 14		200 x 190
5 x 3.5		20 x 15
6 x 4		25 x 19

Feature
With good thermostability, insulation, temperature resistance, etc. properties, alumina insulation tubes are used in thermocouple sleeves.

Materials Physical and Chemical Index

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/cm^3	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·cm^3	>1014 >1010	>1014 >1010	>1014 >1012
Long-term use temperature	ºC	1700	1600	1200
Thermal conductivity(25ºC)	W/moK	35	34	20

Detailed Photos

 

Our service

1. The inquiry will reply as soon as we can.

2. The samples will be supplied for free.

3. Competitive prices

4. The goods will be sent on time

5. Good pre-sales and after-sales service