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Zhengzhou Shibo Nonferrous Metals Products Co., Ltd.

Alumina Tube, Alumina Ceramic Tube, Al2O3 Tube manufacturer / supplier in China, offering High Purity Alumina Ceramic Tubes Used for High Temperature Furnace, Box-1200 Laboratory Electric Furnace, High Quality Muffle Furnace, Tungsten Baffle, Professional Tungsten Plate and so on.

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Supplier Homepage Product industrial furnace parts Alumina ceramic tube and crucible High Purity Alumina Ceramic Tubes Used for High Temperature Furnace

High Purity Alumina Ceramic Tubes Used for High Temperature Furnace

FOB Price: US $30-60 / Piece
Min. Order: 10 Pieces
Min. Order FOB Price
10 Pieces US $30-60/ Piece
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Port: Zhengzhou, China
Production Capacity: 10000PCS/Months
Payment Terms: T/T, Western Union

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Basic Info
  • Refractoriness (℃): 1580< Refractoriness< 1770
  • Shape: Pipe
  • Name: Alumina Ceramic Tube
  • Transport Package: Wooden Boxes
  • Type: Refractory Material
  • Material: Alumina Ceramic
  • Trademark: SHIBO
  • Origin: Henan, China(Mainland)
Product Description
High purity Alumina ceramic tubes used for high temperature furnace
1. Extreme high temperature stability under reducing, inert and high vacuum condition under high temperature up to 1800C.
2. Extreme wear and abrasion resistance.
3. Chemical corrosion resistance under high temperature.
4. High dielectric properties.
5. Gas tight for many applications to provide protective atmospheres or high vacuum at high temperature to eliminate contamination or impurity. 
Chemical competentAl2O3≥85%
SiO2<12%
Fe2O3<0.5%
Alkaline matter<2.5%
Density2.6 g/cm3
Hardness7 M
Water absorption<0.2%
Rupture  strength>1300kg/cm2
Gas tightnessKept for ten minutes at negative pressure of 1.3Kpa. The pressure drop is less than 0.3Kpa.
Heat toleranceInsert the pipe into the furnace at a depth of 20mm. Heat to 1600ºC and maintain for 30 minutes.
Alkali toleranceIn 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/1300ºC
Breakdown voltage18kv/cm
Expansion coefficient5*10(-8)
Temperature for useLong-term: 1400ºC  Short-term: 1600ºC
Chill and abrupt heat1300ºC~room temperature not cracking thrice.
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