99% Alumina Ceramic Thermocouple Protection Tube

• Customization: Available
• Application: Insulators
• Color: White
• Model NO.: chemshun ceramics
• Material: Ceramic
• Thermal Rating: 1700 Max
• Type: Insulation Sleeve & Tube
• Certification: ISO9001
• Brand: Chemshun Ceramics
• Transport Package: Wooden Box
• Specification: ID*ID: 30*23 max
• Trademark: Chemshun Ceramics
• Origin: P. R. China
• HS Code: 6909191200
• Production Capacity: 25000ton/Year

Product Description

99% Alumina Ceramic Thermocouple Protection Tube


Chemshun Alumina ceramic thermocouple protection tube .Thermocouple temperature measuring instrument is a commonly used temperature measuring element in industrial production. Among them, the key core parts are temperature measuring heating wire and insulating protective sleeve. Alumina ceramic insulating protective sleeve has good thermal conductivity and high temperature resistance. It is widely used in the production of thermocouples. It plays a key role in protecting the temperature measurement and thermal conductivity wires and increases the service life of thermocouples. The corundum protective sleeve has a sealed round head shape at one end and good compactness. It is generally used in conjunction with an insulating core to form an important temperature measuring element of a thermocouple protection tube.

>>>Physical Property:

Material		Alumina Content
Characteristic	Unit	AL99.7	AL99.5	AL99	AL95
Content		99.7%	99.5%	99%	95%
Color		Ivory white	Ivory white	Ivory white	Ivory white,
Density	g/cm	3.94	3.9	3.8	3.75
Straightness		2‰	2‰	2‰	2‰
Hardness	Mohs hardness	9	9	9	8.8
Water absorption		<=0.2	<=0.2	<=0.2	<=0.2
Flexural strength	(20ºC) Mpa	375	370	340	304
Compressive strength	(20ºC) Mpa	2300	2300	2210	1910
Thermal expansion coefficient	10/ºC	7.6	7.6	7.6	7.6
Dielectric strength	AC.kv/mn	10	10	10	10
Dielectric loss	<0.0001	<0.0001	0.0006	0.0004	0.001
Volume resistivity    (20ºC)    (300ºC)	Ω.cm^3	>10^14 2*10^12	>10^14 2*10^12	>10^14 4*10^11	>10^14 2*10^11
Dielectric constant	25ºC@1HM	9.8	9.7	9.5	9.2
Thermal conductivity	W/m.k	35	35	34	20
Long-term use temperature	ºC	1700	1650	1600	1400

>>>SIze :
 

OD*ID (mm)	Model & length	OD*ID (mm)	Model & length	OD*ID (mm)	Model & length
2*1	Al2O3 99.5%  <=1500 mm	10*7	Al2O3 95% / Al2O3 99%/ Al2O3 99.5% <=2500 mm	19.05*14.3	Al2O3 95% / Al2O3 99%/ Al2O3 99.5% <=2500 mm
3*2		11.13*7.95		20*15
4*2.5		12*8		22.23*15.88
5*3		12.7*8.9		23.83*17.48
6.35*3.96	Al2O3 95% / Al2O3 99%/ Al2O3 99.5% <=2500 mm	14*10		25.4*19.05
7.95*4.78		15*10		26*20
8*5.5		15*11		28*22
9.53*6.35		16*12		30*23
10*6		17.48*12.7

 

>>>Delivery time of goods in stock : 2-3 days
Production cycle of customized Size : 25-30 days