Manufacturer of Industrial High Temperature Refractory 99.7% Al2O3 Alumina Ceramic Roller Tube Stock

• Customization: Available
• Refractoriness (℃): 1580< Refractoriness< 1770
• Feature: Long Time Materials, Instant Materials
• Shape: Tube
• Material: Alumina Cement
• Transport Package: Cartoon / Wooden Box
• Specification: 0.3
• Trademark: RY
• Origin: China
• HS Code: 690919000
• Production Capacity: 10000000

Product Description

Ceramic Alumina Tubes Alumina Rod High Temperature Resistant




2: Ceramic tube pipe advantages :

• High hardness 
• Superior abrasion  
• Corrosion and chemical resistance 
• Light weight 
• Low maintenance cost: Super wear-resistance reduce the maintenance frequency and also the maintenance cost.
• Good fluidity : Smooth surface ensure the free flow of material without  blocking

3:Pipe Size available
 

Dimension		Outer dia. mm	Inner dia.mm	Length mm	Remark
Item
Thermocouple protection tube		7-120	1-110	10-2000	If you need others,we can customize for you.
Insulated tube	Single hole	2-120	1-110	10-2000
(inner core)	Double holes	1-10	0.4-2	10-2000
	Four holes	2-10	0.5-2	10-2000

4: Technical data :
Main performance index about alumina ceramic tube:

Project		Test the condition	Unit	99 porcelain	95 porcelain	Talc porcelain
Backbone				99%AL2O3	95%AL2O3	MgO.SiO2
Physical property	Density of volume	Normal atmospheric temperature	g/cm^3	3.8	3.6	2.8
	Airtight	Normal atmospheric temperature	.	.Pass	Pass	-
	Absorbing water rate	Normal atmospheric temperature	%	0	0	0
	Temperature that frit		°C	1800	1650	1350
Mechanical performance	Rockwell hardness	Normal atmospheric temperature	HRA	88	86	76
	Resist the intensity of turning back	Normal atmospheric temperature	Mpa	350	320	150
	Compression strength	Normal atmospheric temperature	Mpa	1300	1200	900
Hot performance	Use temperature at most		°C	1700	1600	1200
	Heat resistant shaking	20O°C-1100O°C	10Num	Pass	Pass	Pass
	Hot coefficient of expansion	20O°C-80O°C	×10^-6mm/°C	6.5-8.5	6.5-8.0	5.0-6.2
	Heat-conduction rate	25°C	W/m.k	29	25	2.9
		300°C	W/m.k	18	13	2
Dielectric constant	The medium lossing	1MHz2O°C	×10^-4	≤2.5	≤4	≤8.0
	The angle tangent is worth	1MHz8O°C	×10^-4	≤3.5	≤4.2	-
	Dielectric strength	Normal atmospheric temperature	KV/mm	15	16	20
	Dielectric constant	1MHz2O°C		9-10.5	9-10	≤7.5
	Resistivity of volume	2O°C	Ω.cm	>10^12	>10^12	>10^13
		10O°C	Ω.cm	10^12-10^13	10^12-10^13	10^10-10^11
		30O°C	Ω.cm	>10^12	3.1×10^9	5×10^8

 


5: Application :
 

Thermal protection tubes for the glass and metallurgical industries.

Rectangular tubes for the printing industry.

Thermal protection tubes for measurement and control technology.

 

Why To Choose Us

1. Low MOQ:

   It won't occupy too much of your money to help you to test the market you're going to enter.

2. R & D Center and Factory:

   We have our own R & D center and factory, so we can supply you products at competitive price.

3. Good Service :

   We treat clients as friends.

4. Good Quality : 

   We import top quality accessories to manufacture our products, we have confident we can offer you the best quality.  

5. After-sales service: 

   One year's guarantee. Wearing accessories comes with the products to help you to reduce the repair bill.