95 to 99.7 AL2O3 porous alumina ceramic filter tube
Chemical
competent
Al2O3
≥85%
SiO2
<12%
Fe2O3
<0.5%
Alkaline matter
<2.5%
Density
2.6 g/cm3
Hardness
7 M
Water absorption
<0.2%
Rupture strength
>1300kg/cm2
Gas tightness
Kept for ten minutes at negative pressure of 1.3Kpa. The pressure drop is less than 0.3Kpa.
Heat tolerance
Insert the pipe into the furnace at a depth of 20mm. Heat to 1600°C and maintain for 30 minutes.
Alkali tolerance
In the Na2CO3 solution of 2N concentration, boil for 15 hours with the weight loss not greater than 20mg/dm2.
Volume resistance
>2*10(5) Ω·cm/1300°C
Breakdown voltage
18kv/cm
Expansion coefficient
5*10(-8)
Temperature for use
Long-term: 1400°C Short-term: 1600°C
Chill and abrupt heat
1300°C~room temperature not cracking thrice.
Pictures of porous alumina tube
Packaging & Shipping
Packing of porous alumina tube: Standard export carton
Shipping of porous alumina tube: By vessel or plane from any Chinese port
Package pictures of porous alumina tube
Our Services
1.Timely response,
Timely response to your inquiry, multiple choice recommendations based on your demand,quickly respond mails and provide solutions.
2.Free sample
porous alumina tube Sample and trial order are accepted for the quality evaluation
3.Strict quality control
Arrange production on time and control quality strictly.
4.Shorter delivery time.
Book the earliest vessel or plane to guarantee the delivery time.
5.Professional Services
Provide all the detailed news and pictures from order to delivery;
Offer relative export documents and original certificate if needed;
Warm and considerable after-sale service
Company Information
DKJL refractories exporting company is one of the most professional suppliers of refractories in China. Our main products are refractory and thermal insulation materials, heating elements, industrial ceramics. They are available in various sizes and shapes. Our products enjoy a good reputation for their excellent quality and service in domestic and international markets.
FAQ
Q1:.How can I get your prompt quotation for porous alumina tube?
A:Wecan give our offer quickly if you kindly send the inquiry with following factors:dimension(length*ID*OD),density,application and quantity.