Custom Alumina Ceramic Tube For Thermocouple Protection And High Temperature Applications

99.5%, 99% And 95% Alumina Ceramic Tubes

Customized For Thermocouple Protection

Industrial Furnaces And Electrical Insulation

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High Purity Alumina

Precision Machining

Export Worldwide

Custom Alumina Ceramic Tube For Thermocouple Protection And High Temperature Applications

99.5%, 99% And 95% Alumina Ceramic Tubes
Customized For Thermocouple Protection
Industrial Furnaces And Electrical Insulation

Request A Quote

Our Alumina Ceramic Tube Solutions

ONE End Closed Alumina Ceramic Tube (OEC)

Multi Hole Alumina Ceramic Tube

Both End Open Alumina Ceramic Tube (BEO)

High Alumina Ceramic Tube

Material Property

Corundum Tube
Item	Unit	99.5% Al₂O₃	99% Al₂O₃	95% Al₂O₃
Purity	%	99.5	99	95
Density	g/cm³	3.9	3.89	3.6
Porosity	%	0	0	0
Firing Temperature	°C	1800	1700	1680
Hardness	HV	1700	1600	1500
Flexural Strength	kgf/cm²	3500	3500	3000
Compressive Strength	kgf/cm²	30000	30000	25000
Fracture Toughness	MPa·m^1/2	4	3.8	3–4
Max Operating Temperature	°C	1700	1600	1450
Thermal Expansion	cm/cm/°C	8×10⁻⁶	8×10⁻⁶	8×10⁻⁶
Thermal Conductivity	W/m·K	27	25	22
Volume Resistivity (ohm·cm)	20°C	10¹⁴	10¹⁴	10¹⁴
	100°C	10¹³	10¹³	10¹³
	300°C	10¹²–10¹³	10¹²–10¹³	10¹²–10¹³
Dielectric Strength	Volts/mil	220	216	210

High Alumina Ceramic Tube
Item	Unit	MY98	MY97	MY95
Al₂O₃ Content	%	78	78	79
ZrO₂ Content	%	5 ± 1	3 ± 1	—
Density	g/cm³	2.90 ± 0.5	2.80 ± 0.5	2.70 ± 0.5
Water Absorption Rate	%	4.5–5.5	5.5–6.5	6.5–8.5
Flexural Strength	MPa	75 ± 5	70 ± 5	65 ± 5
Thermal Stability	—	Excellent	Excellent	Excellent
The Max Using Temperature	°C	1350	1300	1250
Straightness	%	<0.07	<0.07	<0.07

Widely Used In Various Industries

Thermocouple Protection

Industrial High Temperature Furnace

High Temperature Tunnel Kiln

Ceramic Insulation

Safe & Reliable Packaging

Individual Protection

Bubble Wrap

Strong Wooden Case

Palletized Loading

Worldwide Delivery

Contact

*Your contact won’t be shared with 3rd party.

Shenyang Vhandy Technology Co., Ltd.

Room 401, D11 Block (Shenyang International Software Park), Shenyang, Liaoning, China

Email

vhandy@vhandy.com

Phone/WeChat/WhatsApp

0086-17702411651