:: Key Facts
Alumina (Al2O3) at a glance
- Purity grades 95% / 99% / 99.7% / transparent
- Volume resistivity up to 10¹⁴ Ω·cm
- Best cost-performance at production volumes
- Typical parts: suction cups, end effectors, threaded fasteners, structural plates
:: Process & QC
Every lot, documented.
Formed and sintered at our Huzhou base, precision-ground in Huizhou. CMM dimensional report, material certificate and optional SEM imagery ship with your order.
Zeiss CMMSEMXRDISO 9001
:: FAQ
Which alumina purity should I choose?
95% for cost-driven structural parts; 99% for better wear and insulation; 99.7% for semiconductor and high-purity service.
Is alumina good for vacuum chucks?
Yes — 99%+ alumina is the standard for porous and solid vacuum chucks. We machine both.
Can alumina parts be metallized?
We supply Mo-Mn metallized alumina via qualified partners for brazed assemblies.
:: Other Materials
Compare the family
ZrO2
Zirconia Parts
High strength & toughness. Pump plungers, valve sleeves, dispensing tips.
Flexural ≥1000 MPa :: HRA ≥88
Explore →Al2O3
Alumina Parts
Workhorse of technical ceramics. 95% / 99% / 99.7% purity grades.
Volume resistivity 10¹⁴ Ω·cm
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Si3N4
Silicon Nitride Parts
Rollers & end effectors that outlast steel in high-speed lines.
Fracture toughness 6–8 MPa·m½
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AlN
Aluminum Nitride Parts
Thermal management substrates for power electronics & LED.
Thermal conductivity ≥170 W/m·K
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SiC
Silicon Carbide Parts
Seal rings & wear parts for harsh chemical service.
Corrosion-proof :: HRA ≥92
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