99.5% Pure Al2O3 Ceramic Tube for Furnace

• Refractoriness (℃): 1580< Refractoriness< 1770
• Feature: Long Time Materials
• Type: Refractory Material
• Shape: Pipe
• Material: Al2O3 Ceramic
• Transport Package: Wooden Case
• Model NO.: Al2O3
• Specification: custom size
• Trademark: SHIBO
• Origin: China
• HS Code: 69032000
• Production Capacity: 10000PCS/Month

Product Description

99.5% Pure Al2O3 Ceramic Tube for Furnace
 
Specification:
99.5% pure Al2O3 ceramic pipe / tube
High purity: >=99.5%
 
Character:
1. Smooth surface, excellent Wear-resistance
2. Long service life
3. High Temperature Resistance: 1800C
4. Length: 20-3000mm
 
Usage:
Be used in thermocouple protection and various furnace.
We can design 2 kinds: 1) both ends open. 2) one end open, the other end close.
 
Tech Data:

Chemical competent	Al2O3	≥99.5%
	SiO2	<0.2%
	Fe2O3	<0.1%
Alkaline matter		<0.1%
Density		3.9 g/cm3
Hardness		9 M
Water absorption		<0.1%
Ruptures trength		>2000kg/cm2
Gas tightness		Kept for ten minutes at negative pressure of 1.3Kpa. The pressure drop is less than 0.3Kpa.
Thermal 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		>9*10(5) Ω·cm/1600ºC
Breakdown voltage		20kv/cm
Expansion coefficient		8*10(-8)
Temperature for use		Long-term: 1600ºC Short-term: 1800ºC
Chill and abrupt heat		1500ºC~room temperature not cracking thrice.

About Us
We're professional manufacturer of molybdenum and tungsten products, MoSi2 and SiC heating element, laboratory furnace. Our products are exported to USA, Europe, Middle East and Southeast Asia, etc. We're a factory with ISO quality system certification. We can produce as per customer's request and provide products with good quality and best price!


Our products include:     

Molybdenum Product	Molybdenum Sheet/Plate/Rod/Bar/Electrode/Wire
	Molybdenum Crucible/Tube/Boat/Disc/Nut
	Molybdenum Special Shape Product
Tungsten Product	Tungsten Sheet/Plate/Rod/Bar/Wire
	Tungsten Crucible/Tungsten heat shield
	Tungsten Special Shape Product
Alloy Product	TZM Alloy/Mo-La Alloy
	Tungsten Copper Alloy
MoSi2 heating element	U, L, W, Special shape
SiC heating element	U, W, ED, Dumbbell, SC, SCR shape
Laboratory furnace	Muffle furnace, Tube furnace Atmosphere furnace, Vacuum Furnace
Accessories	Holders, Straps, Alumina tube

Why choose Shibo?
1. More than 20 years' manufacturing experience, leading factory
2. Reasonable factory direct wholesale prices
3. Steady and top quality, timely delivery, reliable after-sale service