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Alumina ceramic

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

Hotline

181-2297-4730

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.
alumina tube

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)
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.

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Dongguan Mingrui Ceramic Technology Co., Ltd.
TEL：+8618122974730
MB：+86 181 2297 4730 Tel：+86 746 3386888
Skype：+86 181 2297 4730
Email：admin@cerampart.com
ADD：No. 21, Chuangxing Road, Shangsha Second Industrial Zone, Chang'an Town, Dongguan City