Customized Split CNC Machined Alumina Ceramic Gasket Ring 99.5% Al2O3 with Groove

• Customization: Available
• Application: Petrochemical Industry, Industrial Ceramic, Al2O3
• Color: White
• Model NO.: HB-CF-A017
• Material: Alumina Ceramic
• Bulk Density: 3.85 G/Cm^3
• Bending Strength: >350 MPa
• Porosity: <0.5t%
• Compressive Strength: >12000tmpa
• Water Absorption: 0%
• Chemical Composition: Sio2, Fe2o3, R2o, Al2O3
• Flexural Strength: 330MPa
• Vickers Hardness: 1800
• Keywords: Alumina Ceramic Ring
• Dielectric Constant (at 1MHz 25℃): 10
• Key Words2: Industrial Ceramics
• Type: Ceramic Gasket
• Dielectric Strength: 20kv/mm
• Volume Resistivity: 10^14ω Cm
• Thermal Conductivity (30℃): 25W/M.K
• Transport Package: Safe Package
• Specification: Customized
• Trademark: HIGHBORN
• Origin: Jiangsu China
• Production Capacity: 20000PCS/Month

Product Description

Product Description

Alumina (Al₂O₃) Ceramic Parts

Our custom alumina ceramic parts are precision-engineered structural components manufactured from high-purity aluminum oxide (Al2O3, 95%–99.8%), designed for extreme wear resistance, thermal stability, and electrical insulation in demanding industrial environments. Available in custom geometries, sizes, and surface finishes for OEM applications.

Alumina Custom Parts

Material: 95%–99.8% Alumina (Al2O3); 99.5% grade offers higher strength (350–400 MPa), higher hardness (1,600–1,800 HV), and better dielectric strength (12–15 kV/mm) than 96% grade
Density: 3.7 – 3.98 g/cm³
Max. Operating Temperature: Up to 1,750°C (99.5%–99.7% grades, no load)
Surface Finish: Polished (Ra <0.1µm), ground (Ra 0.4µm), or as-fired
Tolerances: ±0.01 mm (precision-machined parts)

Extreme Wear Resistance– Hardness up to Mohs 9; outlasts metals by 10× in abrasive environments

Superior Corrosion Resistance– Resists most acids, alkalis, and solvents; zero metal ion release keeps process fluids uncontaminated

 Alumina Ceramic Gasket Ring 

Tailored solutions– Customized shapes, dimensions, tolerances, and surface treatments based on your specifications

Engineering support– Design-stage consultation to resolve manufacturability issues before production

Rapid prototyping– Sample turnaround in as little as 3–5 business days

Full QC inspection– Every batch inspected before shipment

High-Temperature Stability– Continuous operation up to 1,750°C without structural degradation
Zero Metal Contamination Critical for semiconductor, medical, and cleanroom applications
Complex Geometry Capability– CNC / laser machining for intricate designs; 5–10 day lead time for prototypes

Product forms: Rods, tubes, plates, discs, rings, washers, bushings, nozzles, plungers, insulators, and fully custom-machined shapes per your drawing or 3D model

Technical Specifications

(Custom configurations available upon request.)

Alumina Purity	92%	95%	96%	99%	99.6%
Color	White	White	White	Ivory White	White
Volumedensity(g/cm3)	3.45	3.5	3.7	3.75	3.9
Water Absorption	0	0	0	0	0
Flexural Strength	300Mpa	300Mpa	320Mpa	330Mpa	330Mpa
Vickers hardness	1300	1400	1400	1800	1800
Dielectric Constant (at 1MHZ 25℃)	10	10	10	10	10
Modulus of elasticity	350Gpa	350Gpa	350Gpa	370Gpa	370Gpa
thermal conductivity (30℃)	18W/M.K	24W/M.K	24W/M.K	25W/M.K	28W/M.K
Volume resistivity	10^14Ω•cm	10^14Ω•cm	10^14Ω•cm	10^14Ω•cm	10^15Ω•cm
Dielectric strength	20KV/mm	20KV/mm	20KV/mm	20KV/mm	30KV/mm

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Packaging & Shipping

Reliable Fragile Product Packaging & Comprehensive Shipping Protection

Targeting the fragile, high-precision characteristics of industrial ceramic and quartz products, we adopt standardized export-grade shockproof packaging and professional global transportation solutions. Finished products go through independent wrapping, anti-collision foam filling and thickened carton or wooden box reinforcement, greatly reducing the risk of breakage, scratch and deformation during transit. We support customized brand packaging, exclusive shipping marks and standardized export packaging standards, and adapt to multiple transportation modes including sea freight, air freight and international express. With mature logistics docking experience and full-link cargo protection measures, we aim to improve the safety and integrity of product delivery for global industrial customers.

R&D Strength & Mature Project Experience

Independent R&D Innovation + Verified Similar Overseas Project Cases

We have independent professional R&D teams and laboratories capable of continuous innovation, structural optimization and process improvement, to develop customized products tailored to international market needs. Our products are exported to more than 130 countries, and we have established cooperative partnerships with over 100 well-known domestic and foreign universities. We have also maintained successful cooperation with Fortune 500 enterprises.
We boast extensive overseas project experience and have long provided services to worldwide clients covering similar target markets, customer groups and product specifications. Our well-established, replicable project cases comply with major international standards.

Stable Capacity & Fair Pricing

Sufficient & Stable Output Capacity + Standardized              Market-oriented Quotation

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Full-Cycle Service & Long-Term Trusted Partner

One-stop Full-lifecycle Export Service + Sustainable & Stable Enterprise Operation

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FAQ

Q1: Can you provide exclusive customized solutions for special project demands? 
A1: Yes. In addition to conventional OEM and ODM customization, we can develop exclusive product structures, adjust technical parameters and optimize solutions according to special project standards, regional industry specifications and personalized buyer requirements, providing one-to-one customized technical support.
 
Q2: Do you support third-party factory inspection and product random testing? 
A2: We support on-site factory audit and offline random inspection by buyers or authoritative third-party institutions. Our standardized production process, complete quality records and standardized management system can comply with mainstream international factory inspection standards.
 
Q3: How do you ensure on-time delivery for bulk orders? 
A3: We have a scientific production scheduling system and sufficient material reserve chain. According to order quantity and delivery cycle, we will formulate a detailed production plan, arrange special personnel to track progress in real time, and effectively avoid delivery delays to ensure stable and punctual shipment of bulk and urgent orders.
 
Q4: Why is your factory price more stable than trading companies? 
A4: As a direct manufacturer, we control all links from raw material procurement, production processing to finished product output. There is no intermediate markup, and we can adjust costs according to long-term cooperative orders, maintaining stable and transparent pricing for long-term strategic partners.
 
Q5: What customized service items can you support besides product structure? 
A5: Besides structural size and precision tolerance customization of industrial ceramic and quartz products, we support personalized services including custom deep processing, surface treatment, laser marking, custom packaging and technical document customization to meet different industrial and brand standards.