 |
| Color: | |
|---|---|
| Brand: | |
| Quantity: | |
0331
HaoRui
0331
Low thermal expansion keeps seating faces flat through thermal cycles
Multiple diameters and through-bores ground in one part
High compressive strength for base and plunger duty
Insulating base for energized or heated assemblies
Hand-finished and inspected before packing
Tolerances down to ±0.01 mm where applicable
Valve and plunger assemblies
Rotary indexing supports
Insulating base plates in heating and welding equipment
| Property | Data | Unit |
|---|---|---|
| Color | Black / Grey | - |
| Density | 3.2 | g/cm³ |
| Bending strength | 750 | MPa |
| Compressive strength | 3,800 | MPa |
| Elastic modulus | 290 | GPa |
| Fracture toughness | 7 | MPa·m1/2 |
| Weber coefficient | 15 | m |
| Vickers hardness | 1,700 | HV0.5 |
| Coefficient of linear thermal expansion | 2 | 10⁻⁶ K⁻¹ |
| Thermal conductivity | 20 | W/mK |
| Thermal shock resistance (water quench) | 750 | ΔT °C |
| Max working temperature | 1,300 | °C |
| Volume resistance at 20 °C | >10¹⁴ | Ω·cm |
| Dielectric strength | 10 ×10⁶ | V/m |
Laboratory test data of the silicon nitride grade we machine. Customers should judge suitability for the specific working environment. Tolerances, surface finish and part-specific dimensions are made to your drawing.
Send a drawing (STEP / DXF / PDF) or a sample - we quote from either.
Face diameter, boss size and bore machined to your specification.
Tolerance: ±0.01 mm typical, down to ±0.005 mm on critical dimensions.
Finishing: as-machined, diamond-ground or lapped.
Prototype and small batch orders accepted; production quantities supplied with inspection report on request.
