FORM 03
Ceramic Rods
Solid and bored rods for structural, insulating and wear duty, machined to the diameter and length your assembly needs.
Si₃N₄
Silicon Nitride Ceramics
Silicon nitride for strength at temperature: high strength, thermal shock resistance and low weight in parts that move or cycle.
Advanced Industrial Ceramics
Silicon nitride keeps high strength at elevated temperature while staying light and resistant to thermal shock. That combination suits parts that move, parts that cycle between temperatures, and equipment where the ceramic has to carry load without carrying weight.
It is used for rods, plates, rings, discs, nozzles and insulating parts, and as a base material for custom precision components where dynamic duty and thermal cycling are both present.
Specification and control points
| Material system | Silicon nitride (Si₃N₄) |
|---|---|
| Purity | High-purity grades specified per application |
| Catalogue forms | Rods · Plates · Rings · Discs · Nozzles · Insulators · Custom precision parts |
| Tolerance | Ground to your drawing |
| Surface finish | Precision ground |
| Operating environment | Elevated temperature · Thermal cycling · Abrasive contact · Electrical insulation |
| Supply stage | Sample part through batch production |
Si₃N₄Silicon nitride parts — supplied part photograph
Part photographs
Silicon Nitride 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. 01Flanged discs
FIG. 02Bushes with keyways
FIG. 03Plate with a hole grid
FIG. 04Spool pins
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 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 06
Ceramic Nozzles
Nozzles and orifices for abrasive, corrosive and high-temperature flow, where a metal nozzle would wear out or contaminate the stream.
FORM 07
Ceramic Insulators
Insulating components for electrical and thermal isolation in equipment that combines high voltage with high temperature.
FORM 09
Custom Precision Components
Engineered parts built from your drawing: grade selection, geometry, tolerance, surface finish and inspection defined with your application.
FORM 11
Ceramic Discs
Machined discs with concentric features for seats, wear faces and rotating duty, finished to the drawing on the functional face.
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.
AutomotiveEnergy & PowerMachinery & HardwareWatch & ElectronicsInstrumentation
Made to your requirement
What is defined with you before production
- Section and geometry defined against dynamic load.
- Running and contact faces finished to the assembly requirement.
- Tolerance band agreed where the part moves or locates.
- Grade selected for the peak temperature and cycling profile.
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
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.
Material detailsSiC
Silicon Carbide Ceramics
Silicon carbide for the most demanding thermal and abrasive duty: very high service temperature, thermal shock and aggressive wear.
Material details