High Precision Wear and Corrosion Resistance 99 Alumina Ceramic for Industrial Use

Product Overview

Our 99% pure alumina (Al₂O₃) ceramic blocks are engineered for extreme industrial environments requiring precision, durability, and chemical resistance. Ideal for high-wear applications where metals and polymers fail.

Key Technical Specifications

✅ Material Composition: 99% Al₂O₃ – <100ppm impurities
✅ Density: 3.9 g/cm³ – >99.5% theoretical density
✅ Mechanical Properties:

Hardness: 1,500 HV (Mohs 9)

Flexural Strength: 350-400 MPa

Compressive Strength: 2,600-3,000 MPa
✅ Thermal Properties:

Max Operating Temp: 1,600°C (2,912°F)

Thermal Conductivity: 28-35 W/(m·K)

Thermal Shock Resistance: ΔT >500°C
✅ Electrical Properties:

Dielectric Strength: 18-22 kV/mm

Volume Resistivity: >10¹⁴ Ω·cm
✅ Surface Finish Options:

As-fired: Ra 0.5-0.8µm

Precision ground: Ra 0.2µm (±0.02µm)

Mirror polished: Ra <0.05µm
✅ Standard Sizes:

Thickness: 5-100mm (±0.05mm)

Width/Length: 50-500mm (custom up to 800mm)

Industry Applications

1. Semiconductor Manufacturing

Plasma etch chamber liners – Non-contaminating, RF-transparent

Wafer handling platforms – Ultra-flat surface (≤0.01mm/m flatness)

2. Chemical Processing

Pump housing liners – Resists 50% H₂SO₄, 30% NaOH

Reactor vessel inserts – Zero corrosion in HCl environments

3. Precision Machinery

Coordinate measuring machine tables – Zero thermal expansion

Optical instrument bases – Vibration damping properties

4. High-Temperature Furnaces

Kiln furniture setter plates – Withstand 1,500°C cycling

Thermocouple protection blocks – Molten metal resistance

5. Medical Technology

MRI-compatible fixtures – Non-magnetic properties

Surgical tool components – Autoclavable, ISO 6474 compliant

Competitive Advantages

✔ Ultra-Low Wear Rate – <0.01mm/year in abrasive environments
✔ Chemical Immunity – Resists all acids except HF
✔ Precision Manufacturing – ±0.01mm tolerance achievable
✔ Cost Efficiency – 5-8 year service life in harsh conditions

Technical Parameters

Production process

Certifications

Our advantage

● Certificates: ISO & SGS

● OEM & ODM: OEM & ODM service is available

● Strict testing procedures :Meeting the requirements of the product design and process, providing reliable testing data.

● Short Delivery time:If less than 1000 pieces, it only takes around 5 days. We also stock some standard-sized products, if you need urgently, we can delivery very soon.

● Best ex-factory price

● Worldwide customers

● Customized according to needs

● Continuous research and development of new products

● Customer service:If you find some quality problem, please contact us, we’ll deal with it as soon as possible.

Packaging and shipping

Our customers have a wide range of processing choices for transportation mode.

Our Main Products

Company Profie

   Yixing Shengda Refractory Ceramic Co., Ltd, established in 1995, Yixing, China with an area of 4,000 square meters and fixed assets of over 1 million US dollars, is a professional manufacturer of Steatite Ceramic Parts, Alumina Ceramic Parts, Cordierite Ceramic Parts, Ceramic Band Heater Insulators, Ceramic Terminal Block, Thermostat Ceramic Parts, Zirconia Ceramics Parts, Ceramic Heater Plugs, etc. 

    Shengda Ceramic equipped with CAD/CAXA/Solidworks software to provide professional OEM & ODM service.

    Looking forward to co-operating with the customers from all over the world!

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