• Ceramic Insulators Steatite Ceramic Insulator Bush Ceramic Dome Head Interlocking Insulating Beads
  • Ceramic Insulators Steatite Ceramic Insulator Bush Ceramic Dome Head Interlocking Insulating Beads
  • Ceramic Insulators Steatite Ceramic Insulator Bush Ceramic Dome Head Interlocking Insulating Beads
  • Ceramic Insulators Steatite Ceramic Insulator Bush Ceramic Dome Head Interlocking Insulating Beads
  • Ceramic Insulators Steatite Ceramic Insulator Bush Ceramic Dome Head Interlocking Insulating Beads
  • Ceramic Insulators Steatite Ceramic Insulator Bush Ceramic Dome Head Interlocking Insulating Beads

Ceramic Insulators Steatite Ceramic Insulator Bush Ceramic Dome Head Interlocking Insulating Beads

Refractoriness (℃): 1580< Refractoriness< 1770
Feature: Long Time Materials
Type: Heat-Resistant Material
Shape: Pipe
Material: Steatite
Alumina Content: >75%
Samples:
US$ 2/Piece 1 Piece(Min.Order)
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Customization:

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Basic Info.

Model NO.
GT-268
Size
Od 8-50
Color
White, Grey
End
Beo
Application
High Temperature Resistant, High Wear Resistance
Finish
Collar, Slot, Curve
Transport Package
Plywood Case
Specification
Rohs
Trademark
shangtao
Origin
Shanghai, China
HS Code
8547100000
Production Capacity
500000 PCS Per Year

Product Description

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(containig 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!
 
Item Testing condition Unit steatite
Bulk density   g/cm3 2.7
Flexural Strength   MPA 160
Coefficient of linear expansion 20~100°C mm/C 8x×10-6
Permittivity 1MHz 20C   7.5
 Insertion loss                     Tangent number 1MHz 20C ×10-4 8
Bulk density resistance 100°C Ω·Cm >1012
Puncture strength   KV/mm 20
Sintering temperature   C 1350

Ceramic Insulators Steatite Ceramic Insulator Bush Ceramic Dome Head Interlocking Insulating Beads Ceramic Insulators Steatite Ceramic Insulator Bush Ceramic Dome Head Interlocking Insulating Beads
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

 






Property of material:
Material 85 Al2o3 90 Al2o3 95 Al2o3 99 Al2o3
Al2o3 85% 90% 93% 99.30%
Fe2o3 ≤ 1.0 ≤ 0.5 ≤ 0.5 ≤ 0.3
Desnsity: g / cm3 3.4 3.5 3.6 3.85
Vickers Hardness ≥ 8.6 ≥ 8.8 9 9
Water Absorption:% ≤ 0.2 ≤ 0.1 ≤ 0.085 ≤ 0.01
Refractoriness:°C 1580 °C 1600 °C 1650 °C 1800°C
Flexural Strength:Mpa 180 200 240 280

Wear Rate( at room temperature, 

erosion, 100 grinding)%
≤ 3 ≤ 2.5 ≤ 1 ≤ 0.5

 





 
Feature Application Main 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

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