Basic Info.
Application
Industrial Ceramic
Features
Wear Resistance and Insulation
Shape
Round, Square, Oval, etc
Long-Term Operating Temperature
1600
Specification
Customized according to customer requirements
Product Description
Product Description
Product Name | 99% Alumina Ceramic Big Size Tube for Furnace |
Material | 99% Alumina |
Size | φ80*φ70*1000mm |
Forming Method | Slip Casting |
Payment | T/T |
Transport | Air Transportation;Sea Transportation |
Delivery Time | Stock Products:3-7 days after receiving payment. Production Products:35-45 days after receiving payment. |
Application
Alumina ceramic furnace tubes are widely used in high temperature tube furnaces, the operating temperature can reach 1600 ºC, and the conventional diameter is 60mm-120mm. The corundum furnace tube is an important ceramic part of the tube furnace. It is installed in the middle of the furnace. Both ends are covered with metal flanges for sealing. The material is put into the crucible and placed in the furnace tube.
Advantage
-The porosity is 0,Good tightness,air tight
-High temperature resistance,1600ºC
-Stand wear and tear
-High hardness
-High strength
-Resistance to electric breakdown
OD | 30 | 40 | 50 | 60 | 70 | 80 | 90 | 100 | 110 | 120 |
ID | 25 | 30 | 40 | 50 | 60 | 70 | 80 | 90 | 100 | 110 |
Lenght | 95AL/99AL/995AL ≤3000mm |
Product Parameters
Material Comparison Chart
Material | Alumina | Zirconia | Recrystallization Silicon carbide | Silicon Nitride bonded Silicon Carbide |
Properties | Units | AL997 | AL995 | AL99 | AL95 | Zro2 | RSiC | NSiC |
%Alumina | -- | 99.70% | 99.50% | 99.00% | 95% | -- | -- | -- |
Color | -- | lvory | lvory | lvory | lvory&White | lvory White | black | gray |
Permeability | -- | Gas-tight | Gas-tight | Gas-tight | Gas-tight | Gas-tight | -- | -- |
Density | g/cm³ | 3.94 | 3.9 | 3.8 | 3.75 | 5.89 | 2.7 | 2.8 |
Straightness | -- | 1‰ | 1‰ | 1‰ | 1‰ | 1‰ | 1‰ | 1‰ |
Hardness | Mohs Scale | 9 | 9 | 9 | 8.8 | 8.5 | 9.5 | 9 |
Water Absorption | -- | ≤0.2 | ≤0.2 | ≤0.2 | ≤0.2 | 0 | 0 | 0 |
Flexural Strength (Typical 20ºC) | Mpa | 375 | 370 | 340 | 304 | 1200 | 90 | 180 |
Compressive Strength (Typical 20ºC) | Mpa | 2300 | 2300 | 2210 | 1910 | 5700 | 600 | 650 |
Coefficient of Thermal Expansion (25ºC to 800ºC) | 10-6/ºC | 7.6 | 7.6 | 7.6 | 7.6 | 10 | 4.7 | 5 |
Dielectric Strength (5mm Thickness) | AC-kv/mm | 10 | 10 | 10 | 10 | -- | -- | -- |
Dielectric Loss 25ºC@1MHz | -- | <0.0001 | <0.0001 | 0.0006 | 0.0004 | 0.001 | -- | -- |
Dielectric Constant | 25ºC@1MHz | 9.8 | 9.7 | 9.5 | 9.2 | 29 | -- | -- |
Volume Resistivity (20ºC) (300ºC) | Ω·cm³ | >1014 2*1012 | >1014 2*1012 | >1014 4*1011 | >1014 2*1011 | >1013 5*108 | -- | -- |
Long-term operating temperature | ºC | 1700 | 1650 | 1600 | 1400 | 2200 | 1650 | 1450 |
Thermal Conductivity (25ºC) | W/m·K | 35 | 35 | 34 | 20 | 3 | 23 | 15 |
Why choose us?
Certifications
FAQ
Q1:Is it available to produce customized products?
A:We support custom-made alumina ceramic tubes as per different dimensions,designs, surface treatment
Q2.When can I get the price after sending the inquiry?
A:We regularly quote within 24 hours after we get your inquiry.lf you are in urgent need of getting the price, Please call us or tell us in your email so that we will proceed with your inquiry as a priority.
Q3.How long does the whole procedure being worked out?
A:After you place an order, the manufacturing time is about 25 working days.
Q4.How to ensure quality in your factory?
A:The strict quality-control will be done in the production line,including IQC,IPQC,QA,OQC, Also both CKP, AQL are regularly used in production.
Q5. Are you a factory or trading company?
A:We are a professional manufacturer. You are welcome to visit our factory and cooperate with us.
Address:
Xiaoji, Tangshan, Hebei, China
Business Type:
Manufacturer/Factory
Business Range:
Chemicals, Electrical & Electronics, Instruments & Meters
Management System Certification:
ISO 9000
Company Introduction:
Founded in 2005, KOHS Ceramics is a manufacturer and supplier in advanced ceramic and refractory with patent technology and production expertise in China. With experienced engineers and talented workers, we are able to evaluate projects and drawings properly, make valuable suggestion, supply satisfying products. Our materials including: - Aluminium Oxide ( 95% 96% 99% 99.5% 99.7% Al2O3 )- Zirconium Oxide ( Yttria stabilized ZrO2 )- Silicon Nitride ( Gas pressure sintered & Hot pressed Si3N4 )- Boron Carbide (B4C )- Boron Nitride ( Hot pressed BN)- Machinable Glass Ceramic Advanced ceramics of KOHS as a highly specialized manufacturer and supplier are widely used in various fields of automotive, metallurgy, machinery, electronic & electrical, food, chemical, medical and so on. Our technologies and equipments allow us to provide various and flexible forming processes, like slip casting, extrusion dry pressing, isostatic pressing, and injection moulding. The close relationship with the customers is the key to our success. We look forward to making niche and profit between all the customers and us being full of passion and diligence. The products of KOHS are exported to North America Europe, East Asia and CIS countries. We built a new plant in 2012 with the facilities and a well-equipped research lab. KOHS is open to analyzing the actual situation for customer, suggest the suitable product solution and the customer service as well as technical support to meet the respective requirement of customer′s application