Porous Alumina Ceramic Filter Tubes for Flue Gas From Coal-Fired Boilers

• Application: Industrial Ceramic
• Type: Ceramic Tubes
• Price: Competitive
• Property: High Temperature Resistant
• Usage: Industrial Use
• Shape: Customizable
• Material: Alumina Ceramic
• Transport Package: Plywood Case
• Specification: Different Specs
• Trademark: Shangtao
• Origin: Shanghai, China
• Production Capacity: 10000/Month

Product Description

               

Comparison Table of Ceramic Characteristics
		99 Alumina	95 Alumina	Steatite	Mullite	Cordierite	ZrO2
Main Components		99% A1203	95% A1203	MgO Si02	A1203 Si03	3Al2O3 2SiO2	ZrO2
Density	g/cm3	3.9	3.6	2.8	3	2.5	6
Water Absorption Rate	%	0	0	0	3	3	0
Sintering Temperature	ºC	1700	1680	1350	1300	1350	1600
Hardness	HV	1700	1500	800	1000	800	1300
Flexural Strength	Kgf/cm2	3500	300	900	1100	900	11000
Compressive Strength	Kgf/cm2	30000	25000	400	6000	3500	25000
Fracture Toughness	MPa.m1/2	4	3-4	-	-	-	-
Maximum Operating Temperature	ºC	1500	1450	1100	1000	1000	-
Thermal Expansion Coefficient 0-1000ºC	/ºC	8*10-6	8*10-6	6*10-6	6*10-6	4*10-6	9.5*10-6
Thermal Shock Resistance	T(ºC)	220	220	200	300	250	360
Thermal Conductivity	W/(m·K)	31.5	25	2.5	4.2	1.3	3
		15.9	14	-	-	-	-
Volume Resistivity	Ω/cm2	-	-	-	-	-	-
20ºC		>1012	>1012	>1012	>1012	>1012	>1012
100ºC		1012-1013	1012-1013	1010-1011	1010-1012	107-108	-
300ºC		>1012	>1010	5*108	-	3*105	5*109
Insulation Failure Strength	KV/mm	18	18	10	10	10	-
Induced Constant	(E)	10	9.5	5.8	6	6	-
(100Mhz)
Induced Tangent	(tg6)	0.4*10-3	0.4*10-3	0.4*10-3	0.4*10-3	0.4*10-3	-

                         

Q: Are you trading company or manufacturer ?

A: We are factory. We had been engaged industrial ceramics for more than 20 years.The quality and service of the products are
guaranteed.

Q: How long is your delivery time?
A: Generally it is 5-10 days if the goods are in stock. or it is 20-40 days if the goods are not in stock, it is according to the
quantity.

Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.

Q: What is your terms of payment ?
A: 100%T/T before shipping, when the value of the goods is less than $10,000. If over, can be discussed. Accept the payment by
Alibaba insurance order.

Q: Why choose us?
A: OEM and ODM are available. We had customized about 6000 kinds ceramics products for our customer all over the world.
Pre-sale service: Professional technical persons will choose suitable materials for you due to using environment about the ceramic
parts.
The sale of services: If you need,we can provide the sample for you to go on testing,and also provide technical help and supports
for you.
After-sales service: Accept any repair of the product, help to improve technology for customer. And also provide long-term
technical help and support for you.