High Purity One End Closed Alumina Ceramic Tube for Electric Heating Products

Product Description

High Purity One End Closed Alumina Ceramic Tube for Electric Heating Products

Product Description

The specification of the ceramic tubes

1. Material: Alumina, Zirconia, Silicon nitride, Aluminum nitride optional

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

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

4. Dimensional tolerance:  OD with 0.005mm, ID with 0.01mm

5. Surface treatment: polished, glazed, or metalized

6. Secondary processing: CNC machining, lapping, threaded, drilling, grinding, precision laser cutting

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

Main characteristics of alumina ceramic 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 acid and alkali, like HCL, H2SO4

5. Extraordinary electrical insulation, it 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 with the purity increases, both wear resistance and corrosion resistance also increase, so alumina is grouped together based on purity levels, including 75% alumina, 85% alumina, 90% alumina, 95% alumina, 99% alumina, 99.5% alumina, 99.8% alumina, and 99.9% alumina.

Alumina ceramic tubes are generally used as a kind of standard protection part, so our facility has many selections. Our vast, readily available inventory allows us to supply our customers' ceramic tube needs immediately, even for hard-to-find or specialty products. Aluminas are used in a variety of 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 demanding applications

Products category

Remark:

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

Product Parameters

Technical Datasheet of advanced ceramic materials

General	Properties	Unit	99.5% Al2o3	99% Al2O3	96% Al2O3	Steatite	YTPZ ZrO2	SiC
Mechanical	Volume Density	g/cm ^3	≥3.90	≥3.85	≥3.65	≥2.70	≥6.0	≥3.13
	Hardness	HRA	1700	1700	1500	800	1300	2500
	Porosity	%	0	0	0	0	0	0
	Compressive Strength	Mpa	≥2240	≥2240	≥2000	≥551	≥1990	≥ 2200
	Bending Strength	Mpa	≥379	≥338	≥320	≥190	≥1200	≥400
	Elastic Modulus	Gpa	370	350	303	110	210	400
Thermal	Thermal Conductivity	W/m.K	30	29	24	2.5	3	120~150
	Coefficient of Thermal Expansion	1*10^-6 m/k	6.5~8.0	6.2~8.0	5.0~8.0	7.7~8.0	8.0~9.5	4
Electrical	Insulation Breakdown	KV/mm	19	18	18	10	17	-
	Volume Resistivity	Ohm.Cm	>1*10^14	>1*10^14	>1*10^14	>1*10^13	>1*10^11	5*10^6

 

Why choose us?

Our advantage and strength

1. Own in-house comprehensive types of manufacturing equipment

2. With over 12 years of manufacturing experience in OEM, ODM

3. The rigorous and complete quality control system, including IQC, IPQC, OQC, 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 as per 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 us or tell us in your email so that we can proceed with your inquiry as a priority.

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

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

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