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Alumina ceramic

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Alumina Ceramic Tubes Available 95% - 99.99% Purity Al2O3 Aluminum Oxide Ceramics Tube Multi Sizes and Shapes

Brand：Mingrui Ceramic
Material：Alumina ceramic
Precision：0.001mm
Features：Heat resistance High purity
Color：White Blue Ivory Black etc.
Customized：YES OEM

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Alumina Ceramic Tubes Available 95% - 99.99% Purity Al2O3 Aluminum Oxide Ceramics Tube

Manufacture and Sale Multi Sizes and Shapes of Alumina Ceramic Tube

US offers a wide variety of tubes manufactured from high-performance technical ceramic materials, including 95-99.99% Alumina ceramic. Enhance performance and product life by using the material best suited to your application.

Types of alumina tubes:
Single-hole ceramic tubes, porous ceramic tubes, irregularly porous ceramic tubes,ceramic tube insulator,ceramic tube heater...

Part of us machining alumina tube case specifications:

Tube series		Round Double Bore		Round Four Bore		Oval Double Bore
OD	ID	OD	ID	OD	ID	OD	ID
.050"	.020"	.063"	.016"	.063"	.016"	.077"/.051"	.014"
.063"	.031"	.094"	.025"	.094"	.020"	.120"/.070"	.031"
.094"	.040"	.109"	.031"	.109"	.020"	.163"/.112"	.040"
.094"	.063"	.125"	.031"	.188"	.031"
.100"	.050"	.125"	.040"	.219"	.050"
.125"	.063"	.156"	.052"
.156"	.094"	.188"	.040"
.188"	.094"	.200"	.052"

All of alumina ceramic tubes can be machinable for industry applications

High purity alumina ceramics:
99.99% Alumina ceramic; 99.9% Alumina ceramic

Ordinary alumina ceramics:
99.7% Alumina ceramic,99.5% Alumina ceramic,99% Alumina ceramic,97% Alumina ceramic,96% Alumina ceramic,95% Alumina ceramic.

Specifications of the alumina ceramics:

Properties	Unit	Alumina (AL2O3)
Properties	Unit	AL2O3≥95	AL2O3≥99	AL2O3≥99.5	AL2O3≥99.8
Volumetric density	g/cm3	3.7	3.80-3.85	3.85	3.9
Hardness	HRA≥	86	88	88	88
Flexural Strength	Mpa≥	300	350	400	400
Maximum temperature	℃	1500	1500	1500	1500
Line expansion coefficient	×10-6/℃	7.5	8.2	8.2	8.2
Dielectric constant	εr(20℃,1MHz)	9	9.2	9.2	9.2
Media loss	tanδ×10-4,1MHz	3	2	2	2
Volumetric resistivity	Ω·cm(20℃)	1013	1014	1014	1014
Breakdown strength	KV/mm,DC≥	20	20	20	20
Acidic resistance	mg/cm2≤	0.7	0.7	0.7	0.7
Alkaline resistance	mg/cm2≤	0.2	0.1	0.1	0.1
Abrasion resistance	g/cm2≤	0.2	0.1	0.1	0.1
Compressive strength	Mpa≥	2500	2500	2500	2800
Flexural Strength	Mpa≥	200	350	350	350
Elastic modulus	Gpa	300	350	350	350
Poisson-Pine ratio		0.2	0.22	0.22	0.22
Thermalcoefficient	W/m·K(20℃)	20	25	25	25

Alumina ceramic tube manufacturing process:
Raw materials-Molding process - Sintering - Machining & Grinding - Quality Inspector

Precision of manufacture
Dimensional accuracy	Up to 0.001mm
Smoothness	Highest possible mirror
Concentricity	Up to 0.003mm
Parallelism	Up to 0.002mm
The inner hole tolerance	The minimum 0.005mm
Straight flute	The narrowest 0.1x100mm
The thickness of the size	Minimum to 0.02mm
The screw thread	Minimum internal thread M2
Cylindricity	Up to 0.004mm
The linear tolerance	Up to 0.001mm
The smallest aperture	The minimum 0.07mm
Precision process	CNC maching,grinding,lapping
Surface finish	Glazed,polishing or metallized
Visual quality: 1. No cracks, no dark dots, no contamination and sharp edges; 2. Evenly distributed glaze with very smooth surface

As a manufacturer of alumina tube, us offer customization of ceramic tubes of special sizes and shapes.High Precision, Fast Delivery Time, High Composition.

Alumina Ceramic Tubes Available 95% - 99.99% Purity Al2O3 Aluminum Oxide Ceramics Tube

Manufacture and Sale Multi Sizes and Shapes of Alumina Ceramic Tube

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