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Precision Insulating 99% Al2O3 Alumina Ceramic Flange with Mounting Holes Custom Machining
Precision Insulating 99% Al2O3 Alumina Ceramic Flange with Mounting Holes Custom Machining
Precision Insulating 99% Al2O3 Alumina Ceramic Flange with Mounting Holes Custom Machining
Precision Insulating 99% Al2O3 Alumina Ceramic Flange with Mounting Holes Custom Machining
Precision Insulating 99% Al2O3 Alumina Ceramic Flange with Mounting Holes Custom Machining
Precision Insulating 99% Al2O3 Alumina Ceramic Flange with Mounting Holes Custom Machining
Precision Insulating 99% Al2O3 Alumina Ceramic Flange with Mounting Holes Custom Machining
Precision Insulating 99% Al2O3 Alumina Ceramic Flange with Mounting Holes Custom Machining
Specifications
Model Number :
Yh
Surface Finish :
Fine Ground Matte / Mirror Polished
MOQ :
10
Delivery Time :
10-30days
Machining Tolerance :
±0.005mm
Payment Terms :
L/C,D/A,D/P,T/T,Western Union
Shape :
Annular Flange with Counterbore Mounting Holes
Continuous Working Temp :
Up to 1550℃
Density :
3.85g/cm³
Custom Service :
Custom OD, ID, Hole Positions, Step Grooves Available
Price :
Negotiated
Core Performance :
High Insulation, High Temperature Resistance, Wear & Corrosion Resistant
Packaging Details :
by caront or wooden case
Supply Ability :
10000pcs per month
Material :
99% High Purity Alumina (Al₂O₃) Ceramic
Place of Origin :
CHINA
Supply Mode :
Standard Parts In Stock, Custom Molding per Drawings
Certification :
ISO，CE，ROHS
Brand Name :
YH
Function :
Electrical Isolation, Sealing Support, Wear-resistant Positioning
Description

High Temp Wear Resistant Alumina Ceramic Ring Flange

This 99% alumina ceramic flange is integrally dry-pressed from high-purity alumina powder, densely sintered at 1700℃, then precision processed via CNC turning, drilling and step groove fine grinding. Uniform dense pore-free body, equipped with evenly distributed counterbore mounting holes and positioning steps for tight assembly. It serves as dedicated insulating & wear-resistant annular components for high-temperature equipment, high-voltage electrical systems and fluid sealing devices. Custom non-standard sizes including outer diameter, inner diameter, hole layout and step structures are available, we accept small trial batches and mass overseas orders.
Core Advantages:
1:Excellent Electrical Insulation: High breakdown voltage, non-conductive under high temperature to avoid short circuit risks;
2:Stable High Temperature Performance: Long-term service up to 1550℃ without deformation, crack resistant under rapid thermal cycling;
3:Superior Wear & Corrosion Resistance: Mohs hardness 9, resistant to acid, alkali and organic solvents, far longer service life than metal flanges;
4:Precision Integrated Machining: Hole spacing, steps and concentricity tolerance controlled within ±0.005mm for error-free installation;
5:Low Thermal Expansion for Sealing: Stable thermal expansion coefficient, prevents gas & liquid leakage with gaskets during long-term operation.

Precision Insulating 99% Al2O3 Alumina Ceramic Flange with Mounting Holes Custom MachiningPrecision Insulating 99% Al2O3 Alumina Ceramic Flange with Mounting Holes Custom Machining

Application
1:High Voltage Electrical Equipment: Vacuum chamber insulating flanges, power device isolation bases
2:High Temperature Industrial Furnace: Heat treatment furnace sealing support flanges, heating module insulation rings
3:Fluid Metering Equipment: Corrosion-resistant pump sealing flanges, chemical pipeline insulating connectors
4:New Energy Equipment: Energy storage converter insulation supports, wear positioning flanges for battery production lines
5:Semiconductor Equipment: Ceramic insulating annular seals for vacuum coating machines

Precision Insulating 99% Al2O3 Alumina Ceramic Flange with Mounting Holes Custom Machining
Mechanical Properties
Properties
Unit
95%Al2O3
99%Al2O3
99.5%Al2O3
Colour
--
White
Yellow
Yellow
Density
g/cm³
3.7
3.85
3.9
Hardness
GPa
13.7
15.2
15.7
Compressive Strength
MPa
2000
2160
2350
Flexural Strength
MPa
280
310
350
Fracture Toughness
MPa・m1/2
3~4
3~4
4.5
Modulus of Elasticity
GPa
320
360
370
Poissons Ratio
--
0.23
0.23
0.23
Thermal Properties
Properties
Unit
95%Al2O3
99%Al2O3
99.5%Al2O3
Maximum Use Temperature
℃(No load)
1650
1650
1650
Thermal Conductivity @ 20°C
W/(m・K)
24
29
32
Thermal Expansion a at 20–400°C
1 x 10-6/°C
7~8
7~8
7~8
Specific Heat
J/(kg・K)
780
790
780
Thermal Shock Resistance
℃(Put in water)
200
200
200
Electrical Properties
Properties
Unit
95%Al2O3
99%Al2O3
99.5%Al2O3
Dielectric Constant
1MHz
9.4
9.9
9.9
Dielectric Strength
V/m
15 x 10 6
15 x 10 6
15 x 10 6
Dielectric Loss
1MHz
4 x 10 -4
4 x 10 -4
4 x 10 -4
Volume Resistivity @ 25°C
Ω・cm
>10 14
>10 14
>10 14
Volume Resistivity @ 500°C
Ω・cm
>10 8
>10 8
>10 10

Various Types of Alumina Ceramic Sealing Ring
We Can Do OEM and 0BM According to Your Drawing and Requirements.
Precision Insulating 99% Al2O3 Alumina Ceramic Flange with Mounting Holes Custom Machining

Customization & Global Delivery

1:Custom Options: Outer & inner diameter, hole quantity/diameter/spacing, end steps, grooves, chamfers;

2:Sample Support: Free small samples for testing, fast processing solution per drawings or prototypes;

3:Quality Assurance: Factory inspection reports for dimensional accuracy, insulation performance and thermal resistance;

4:International Trade: FOB, CIF, DAP terms available, stable delivery to Europe, America, Southeast Asia, Japan and South Korea.


Packing
Precision Insulating 99% Al2O3 Alumina Ceramic Flange with Mounting Holes Custom Machining

Precision Insulating 99% Al2O3 Alumina Ceramic Flange with Mounting Holes Custom Machining
Precision Insulating 99% Al2O3 Alumina Ceramic Flange with Mounting Holes Custom Machining
FAQ
Q1. Do you provide product samples? Yes, we provide samples subject to availability. A nominal sample fee may apply in some cases, and shipping costs are borne by the customer.

Q2. What are your accepted payment methods? We accept T/T (bank transfer) in advance, Western Union, Alipay, and PayPal.

Q3. What is your typical delivery lead time? Lead times vary depending on product requirements, including material selection, dimensions, and specific manufacturing processes.

Q4. Do you perform quality inspection before shipment? Yes, we conduct 100% inspection of all goods prior to delivery to ensure they meet specified standards.

Q5. What other ceramic materials do you offer? We supply a range of advanced ceramic materials, including Alumina, Zirconia, Aluminum Nitride,Boron Nitride, Silicon Nitride, Machinable Glass Ceramic, and related specialized ceramic
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Precision Insulating 99% Al2O3 Alumina Ceramic Flange with Mounting Holes Custom Machining

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Product Detail
Model Number :
Yh
Surface Finish :
Fine Ground Matte / Mirror Polished
MOQ :
10
Delivery Time :
10-30days
Machining Tolerance :
±0.005mm
Payment Terms :
L/C,D/A,D/P,T/T,Western Union
Contact Supplier
Precision Insulating 99% Al2O3 Alumina Ceramic Flange with Mounting Holes Custom Machining
Precision Insulating 99% Al2O3 Alumina Ceramic Flange with Mounting Holes Custom Machining
Precision Insulating 99% Al2O3 Alumina Ceramic Flange with Mounting Holes Custom Machining
Precision Insulating 99% Al2O3 Alumina Ceramic Flange with Mounting Holes Custom Machining

Hunan Yuanhong New Materials Co.,Ltd

Verified Supplier
1 Years
hunan, changsha
Since 2016
Business Type :
Manufacturer
Main Products :
Alumina Ceramic Disc, Alumina Ceramics, Alumina Ceramic Tube
Total Annual :
10000000-30000000
Employee Number :
80~100
Certification Level :
Verified Supplier
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