Alumina tube Manufacturer: 1,Excellent Wear-resistantce 2,Long service life. 3,High purity 4,ISO9001 Certification. Enterprise qualification:

  Advanced equipment

  More 10 engineers

  Leading company in same field

  ISO 9001:2000 Certification

  High productivity

High Purity Alumina Ceramic tubesTS3001:1. 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.

 Alumina Ceramic tube Specification:

Chemical competent	Al2O3	≥85%
	SiO2	<12%
	Fe2O3	<0.5%
Alkaline matter		<2.5%
Density		3.6 g/cm3
Hardness		7 Mpa
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 1600ºC 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/1300ºC
Breakdown voltage		18kv/cm
Expansion coefficient		5*10(-8)
Temperature for use		Long-term: 1400ºC  Short-term: 1600ºC
Chill and abrupt heat		1300ºC~room temperature not cracking thrice.

 

 

80-99% high Al2O3 ceramic tube(alumina tube)