Factory Supply 99% Alumina Ceramic Tube for Furnace

• Refractoriness (℃): 1580< Refractoriness< 1770
• Type: Alumina Ceramics
• Shape: Pipe
• Material: Alumina Ceramic
• Transport Package: Wooden Box
• Specification: ID100 max
• Model NO.: chemshun ceramics
• Trademark: Chemshun Ceramics
• Origin: China
• HS Code: 6909191200
• Production Capacity: 2000 Ton Per Year

Product Description

99% Alumina Ceramic Tube for Furnace

The purpose of corundum furnace tube is to line the various test electric furnaces, mainly to separate the heating element from the test substance, close the heating zone and place the test substance. The furnace tube has a wide range of applications, such as wire drawing of tungsten, molybdenum, tantalum and rare metals, powder metallurgy sintering, gas-filled high-temperature electric furnace, high-temperature test and analysis equipment in various industries, etc.

Application equipment: vacuum atmosphere tube resistance furnace, energy-saving box electric furnace, high temperature annealing muffle furnace, precision tube furnace, environmental protection and energy-saving new tube electric furnace, vacuum atmosphere tube furnace; vertical furnace, cylindrical furnace, large square furnace (Tubular furnaces are divided by furnace type); chemical reaction furnaces, liquid heating furnaces, gas heating furnaces, and furnaces for heating mixed-phase flow (divided by use)

Size :

Ø40*Ø30*L200/300/400 mm	Ø60*Ø50*L300/400 mm
Ø80*Ø70*L300/400/600 mm	Ø100*Ø90*L300/400/600 mm
Ø50*Ø40*L1200/1500 mm	Ø60*Ø50*L1200/1500 mm
Ø80*Ø70*L1200/1500 mm	Ø100*Ø90*L1200/1500 mm
Customized Size Accepted

Physical Property:

Material		Alumina Content
Characteristic	Unit	AL99.7	AL99.5	AL99	AL95
Content		99.7%	99.5%	99%	95%
Color		Ivory white	Ivory white	Ivory white	white
Density	g/cm	3.94	3.9	3.8	3.75
Straightness		1%	1%	1%	1%
Hardness	Mohs hardness	9	9	9	8.8
Water absorption		<=0.2	<=0.2	<=0.2	<=0.2
Flexural strength	(20ºC) Mpa	375	370	340	304
Compressive strength	(20ºC) Mpa	2300	2300	2210	1910
Thermal expansion coefficient	10/ºC	7.6	7.6	7.6	7.6
Dielectric strength	AC.kv/mn	10	10	10	10
Dielectric loss	<0.0001	<0.0001	0.0006	0.0004	0.001
Volume resistivity	Ω.cm^3	>10^142*10^12	>10^142*10^12	>10^144*10^11	>10^142*10^11
Dielectric constant	25ºC@1HM	9.8	9.7	9.5	9.2
Thermal conductivity	W/m.k	35	35	34	20
Long-term use temperature	ºC	1700	1650	1600	1400

Precautions for installation and use:

1. Packing method: wooden box, carton
2. This product is fragile, please handle it gently during loading, unloading, handling, assembly and cleaning to avoid bumping;
3. It must be dried before use, preheating 50 ºC -80 ºC, preheating time is not less than 5 hours, otherwise it is easy to burst.
4. Due to careless transportation, this product may have cracks. Please check carefully after receiving the goods. The cracks are picked out in time and can no longer be used. (The way to check the cracks is to observe the surface with the naked eye first, and then use a metal object Knock on the surface and make a crisp metal sound without cracking)

 Furnace tube