Alsint Refractory Industrial Customized High Temperature 99.5% C799 Al2O3 Alumina Ceramic Thermocouple Protection Insulator Tube for Furnace Processing

• Customization: Available
• Application: Electronics, Refractory
• Material: Alumina Ceramic
• Model NO.: Customized
• Shape: Tube
• Features: Wear Resistance, Electrical Insulation
• Surface Finish: Polished, Glazed, Metalized
• Forming Methods: Extrusion, ISO Pressed, Dry Pressed
• Purity of Material: Range From 40% to 99.8%
• Color: White, Ivory, Pink, Black
• Certificate: RoHS, Reach, ISO9001:2015
• Purity: 99.5%
• Type: Ceramic Tubes
• Specification: Max. OD to be 800mm
• Trademark: JingHui
• HS Code: 8547100000
• Production Capacity: 5000000/Month
• Package Size: 36.00cm * 20.00cm * 24.00cm
• Package Gross Weight: 12.000kg

Product Description

Alumina Ceramic Thermocouple Protection Insulator Tube for Furnace Processing

Product Description

The specification of the ceramic tubes

1. Material: 
75% alumina, 95% alumina, 99% alumina, 99.5% alumina and 99.7% alumina available. 

2. Forming methods: 
Dry pressed, CIM, ISO pressed, Extrusion

3. Dimensional capability:  
ID with min.1mm,  OD with max .800mm

4. Normina dimensional tolerance: 
OD with 0.005mm, ID with 0.01mm, length with 1% of size

5. Surface treatment: polished, glazed, or metalized

6. Secondary processing: CNC machining, fine grinding, threaded, drilling.

7. Types:
Round tubes, square tubes, tubes with multiple holes
 

Main characteristics of alumina tubes

1. High-temperature resistance, up to 2000ºC in the vacuum atmosphere

2. Outstanding wear resistance, over 276 times in comparison with traditional stainless steel

3. Great mechanical properties, offers diamond-like hardness to be HRA85 

4. Exceptional corrosion resistance, it can withstand various strong acids and alkalis, like HCL, H2SO4

5. Extraordinary electrical insulation, is always used in various high-voltage, high-current application

6. High-precision dimensions with ideal fitting relationship

The Description of Alumina Ceramic Tubes
Alumina(Aluminum Oxide, Al2O3) is the most extensively used advanced ceramic material due to its outstanding property characteristics and cost-effective advantage. As the purity increases, both wear resistance and corrosion resistance also increase, so alumina is grouped based on purity levels, including 75% alumina, 85% alumina, 90% alumina, 95% alumina, 99% alumina, 99.5% alumina, 99.8% alumina, 99.9% alumina.

Alumina ceramic tubes are generally used as a standard protection part, so our facility has many selections of stocks. Our vast, readily available inventory allows us to immediately supply our customers' ceramic tube needs, even for hard-to-find or specialty products. Aluminas are used in various general-purpose applications, and their grade is chosen based on the application environment. Additionally, different purity alumina can be formulated in our factory if needed for more demand applications.

Products category

Remark:

We are dealing with a wide range of advanced ceramic tubes in different raw materials, mainly including alumina, zirconia, silicon nitride, aluminum nitride, silicon carbide, and so on.

 

Product Parameters

Technical Datasheet of advanced ceramic materials

General	Properties	Unit	99.5% Al2O3	99% Al2O3	96% Al2O3
Mechanical	Volume Density	g/cm ^3	≥3.90	≥3.85	≥3.65
	Hardness	HRA	1700	1700	1500
	Porosity	%	0	0	0
	Compressive Strength	Mpa	≥2240	≥2240	≥2000
	Bending Strength	Mpa	≥379	≥338	≥320
	Elastic Modulus	Gpa	370	350	303
Thermal	Thermal Conductivity	W/m.K	30	29	24
	Coefficient of Thermal Expansion	1*10^-6 m/k	6.5~8.0	6.2~8.0	5.0~8.0
Electrical	Insulation Breakdown	KV/mm	19	18	18
	Volume Resistivity	Ohm. cm	>1*10^14	>1*10^14	>1*10^14

 
 

Why choose us?

Our advantage and strength

1. Own in-house comprehensive manufacturing equipment, including mixing, shaping machines, sintering furnace and grinding machines

                 Dry  pressing                                                                 Ceramic Injection Molding                                            Isostatic Pressing

                      Flat Grinding                                                        CNC Machining                                              Precision  Grinding


2. With over 16 years of manufacturing experience in OEM, ODM

3. The rigorous and complete quality control system, including IQC, IPQC, OQC, and QA, also CPK, AQL

4. Support special and custom-made needs, including prototyping and R&D cases, or serial massive demands.

Certifications

 

Our Partners

 

FAQ

Q1: Is it available to produce customized products?

A: We support custom-made alumina ceramic tubes for different dimensions, designs, and surface treatments.

Q2.When can I get the price after sending the inquiry?
A: We regularly quote within 24 hours after we get your inquiry. If you are in urgent need of getting the price,
Please call or tell us in your email so we can proceed with your inquiry as a priority.

Q3.How long is the whole procedure being worked out?
A: After you place an order, the manufacturing time is about 25 working days.

Q4.How do you ensure quality in your factory?
A: Strict quality control will be done in the production line, including IQC, IPQC, QA, OQC,
Also, both CKP and AQL are regularly used in production.

Q5. Are you a factory or trading company?
A: We are a professional manufacturer. You are welcome to visit our factory and cooperate with us.