FORM 01
Ceramic Tubes
Straight and stepped tubes for high-temperature processing, insulation and conveying duty, supplied as-fired or precision ground.
Al₂O₃
Alumina Ceramics
High-purity alumina for insulation, high-temperature containment and structural duty where strength and electrical isolation have to hold at the same time.
Advanced Industrial Ceramics
Alumina is the most widely used of the four Vintel@Ceramics material systems. It offers high purity and high mechanical strength together with excellent electrical insulation, so it works both as a structural ceramic part and as the insulating element in equipment that combines high voltage with high temperature.
Alumina is supplied across the catalogue part forms and as custom parts built to drawing. Grade and purity are selected against the operating environment rather than fixed by a single stock specification.
Specification and control points
| Material system | Alumina (Al₂O₃) |
|---|---|
| Purity | High-purity grades specified per application |
| Catalogue forms | Tubes · Crucibles · Rods · Plates · Rings · Insulators · Wear parts |
| Tolerance | Ground to your drawing |
| Surface finish | As-fired or precision ground |
| Operating environment | High temperature · Corrosive media · Abrasive contact · Electrical insulation |
| Supply stage | Sample part through batch production |
Al₂O₃Alumina crucibles — supplied part photograph
Part photographs
Alumina Ceramics parts photographed
Supplied photographs for this catalogue entry. Captions describe the geometry in each frame — ask us for drawings and grades with your enquiry.
FIG. 01Disc with concentric grooves and a bolt circle
FIG. 02Tube bundle in mixed bore sizes
FIG. 03Blocks with raised bosses
FIG. 04Fork plate, robot arm geometry
Supplied as
Part forms we make in this material
Each form page carries the parts we have photographed, the tolerances we work to, and what we ask before quoting.
FORM 02
Ceramic Crucibles
Shallow and deep crucibles for melting, sintering and high-temperature containment where contamination must stay out of the process.
FORM 03
Ceramic Rods
Solid and bored rods for structural, insulating and wear duty, machined to the diameter and length your assembly needs.
FORM 04
Ceramic Plates
Flat plates and substrates for insulation, support and wear surfaces, held to flatness and thickness requirements.
FORM 05
Ceramic Rings
Precision-ground rings used as sealing, guiding and insulating elements, with the bore, wall and chamfer finished to drawing.
FORM 07
Ceramic Insulators
Insulating components for electrical and thermal isolation in equipment that combines high voltage with high temperature.
FORM 08
Ceramic Wear Parts
Wear liners, guides, bushes and contact parts that extend service life where metal surfaces abrade, gall or corrode.
FORM 10
Ceramic Balls
Spheres held to diameter and roundness for valve, bearing and milling duty, supplied as-fired or precision ground and polished.
FORM 11
Ceramic Discs
Machined discs with concentric features for seats, wear faces and rotating duty, finished to the drawing on the functional face.
FORM 12
Ceramic Structural Parts
Machined blocks, brackets and spacers that locate, support or isolate inside equipment, built to your drawing and inspection points.
Typical applications
Applications this material is specified for
The industries below are the applications this material system is most often specified for. Tell us your own duty and we will confirm whether it is the right grade.
PhotovoltaicsInstrumentationEnergy & PowerWatch & ElectronicsMachinery & Hardware
Made to your requirement
What is defined with you before production
- Wall thickness, bore and length defined to your drawing.
- Chamfers, radii and seating faces specified for the assembly.
- Surface finish selected against insulation, sealing or wear duty.
- Grade selected for the operating temperature and the medium in contact.
Supply stage
Sample part first, then batch production on the same material and process basis. Ask for the material data sheet with your quotation.
Related pages
Other grades to compare
Si₃N₄
Silicon Nitride Ceramics
Silicon nitride for strength at temperature: high strength, thermal shock resistance and low weight in parts that move or cycle.
Material detailsZrO₂
Zirconia Ceramics
Zirconia for wear duty: high strength and toughness with a fine ground surface that holds up under abrasion and repeated mechanical contact.
Material details