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Alumina ceramic

Alumina ceramic sheets with High volume resistivity wear resistance technical alumina sheets

  • 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

Al2O3 Alumina High Purity Ceramic Parts Manufacturer

Alumina Ceramic Sheets With High Volume Resistivity Wear Resistance Technical Alumina Sheets


Us offers a variety range of >90% alumina materials of alumina sheet are often found in our hard wearing products used within the medical, security & defence and industrial applications. 

Some parts of us machinable cases specifications:
Length (inch) Thickness (inch) Width (inch)
0.75 0.165 0.63
0.875 0.187 0.227
0.975 0.2 0.312
1 0.39 0.25
1 0.177 0.75
1 0.5 0.75
1.17 0.23 0.355
1.875 0.187 0.875
1.875 0.387 0.875
1.875 0.387 0.875
2.95 0.5 0.95
3 0.125 2
6 0.25 4
6 0.5 4
Cermaic sheet 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.


Excellent ceramics properties :
High-temperature stability; Corrosion-resistance;Lightweight, Mechanical;Low thermal expansion; Excellent thermal, High reliability;Dimensional stability;High thermal conductivity...

Ceramic Precision 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




 		   Alumina Ceramic Parameter:
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
Customization & Machining Service：
As a professional manufacturer of industrial ceramic components.We can custom the sepcial specifications of alumina ceramic sheets or other ceramic parts.High quality,Factory price, on-time delivery, High composition of ceramics
For more information about ceramics parts,please contact our engineers in time  >>>       

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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