Alumina ceramic thermocouple protection tube

Alumina ceramic thermocouple protection tube 1.Material:alumina ceramic 2.Used in various furnace 3.RoHs certificated

Alumina ceramic thermocouple protection tube 

We mainly produce alumina tubes, rods and various industrial ceramic parts, which are mainly used in thermalcouple temperature, liquid steel continous temperature, various industrial furnace(containing vacuum furnace, carburizing furnace, wire furnace, atmosphere furnace etc), especially widely used in petrochemical, spinning, electric, instrumentation, mechanical workout, military project etc industry. 

 We can produce 85%,95%,99.3-99.7% ceramic tubes and insulated tubes.  

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

 

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

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

Alumina ceramic thermocouple protection tube