::Precision Technical Ceramics::Powder to Finished Parts::ZrO2 / Al2O3 / Si3N4 / AlN / SiC::ASTM Test Data With Every Shipment::Rapid Prototyping — 48h Drawing Review ::Precision Technical Ceramics::Powder to Finished Parts::ZrO2 / Al2O3 / Si3N4 / AlN / SiC::ASTM Test Data With Every Shipment::Rapid Prototyping — 48h Drawing Review

Home / Materials / Alumina (Al2O3) :: Materials / Alumina (Al2O3)

Alumina: the workhorse of technical ceramics.

95% to 99.7% purity grades for electrical insulation, wear and structural duty — the cost-effective choice at volume.

Custom Alumina Ceramic Parts by Xingwei Ceramics

:: 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

Quote Alumina Parts → Selection Guide PDF

:: 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