Shanghai Gongtao Ceramics Co., Ltd.
Main products:Alumina ceramics,crucible,alumina ceramic tube,zirconia ceramics,zirconia crucible,magnesia crucible,fused quartz crucible,silicone nitride product,boron nitride product,ceramic knife,ceramic bearing,silicone nitride ball,graphite crucible,ceramic heater,
Products
Contact Us
  • Contact Person : Mr. hu guoping
  • Company Name : Shanghai Gongtao Ceramics Co., Ltd.
  • Tel : 86-21-53082298
  • Fax : 86-21-53082308
  • Address : Shanghai,shanghai,Room A135 , No. 668,Beijing East Road
  • Country/Region : China
  • Zip : 200001

99.7% High Purity Al2o3 Alumina Pipes

99.7% High Purity Al2o3 Alumina Pipes
Product Detailed
99.7% High Purity Al2o3 Alumina Pipes 1.Material: Alumina Ceramic 2.Purpose:used in various furnace 3.RoHS

99.7% High Purity Al2o3 Alumina Pipes

Gongtao company mainly produce alumina tubes, rods and various industrial ceramic parts, which are mainly used in thermalcouple temperature, liquid steel continous temperature, various industrial furnace(containing vacuum furnace, carburizing furnace, wire furnace, atmosphere furnace etc), especially widely used in petrochemical, spinning, electric, instrumentation, mechanical workout, military project etc industry.

Our items are various and exported to many countries.Welcome to contact us!

Specification:

DimensionOuter dia. mmInner dia.mmLength mmRemark
Item 
Thermocouple protection tube7-1201-11010-2000

If you need others,we can

customize for you.

Insulated tubeSingle hole2-1201-11010-2000
(inner core)Double holes1-100.4-210-2000
 Four holes2-100.5-210-2000

Property of material:

Material85 Al2o390 Al2o395 Al2o399 Al2o3
Al2o385%90%93%99.30%
Fe2o3≤ 1.0≤ 0.5≤ 0.5≤ 0.3
Desnsity: g / cm33.43.53.63.85
Vickers Hardness≥ 8.6≥ 8.899
Water Absorption:%≤ 0.2≤ 0.1≤ 0.085≤ 0.01
Refractoriness:°C1580 °C1600 °C1650 °C1800°C
Flexural Strength:Mpa180200240280

Wear Rate( at room temperature, 

erosion, 100 grinding)%

≤ 3≤ 2.5≤ 1≤ 0.5

Other information:

FeatureApplicationMain usage
1.Great mechanical strength

Electric appliance industry                                     

Automotive industry

1.Heat treatment furnace 

and toughened furnace

2.High softening temperature
3.Good resistance to thermal impact
4.Small thermal expansion coefficient 

Mechanical industry              

Engineer industry 

2.Inner liner tube and heating

 tube in electric furnace

5.Good chill and abrupt heat properties
6. Resistance to acid and alkali corrosion

99.7% High Purity Al2o3 Alumina Pipes



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