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0301
HaoRui - Chinese manufacturer & exporter
0301
Precision-ground internal thread, fit confirmed before production
Maintains strength at elevated temperatures
Reliable electrical insulation in hot zones
Resists abrasion and most chemical media
Thread pitch and profile machined to drawing
Tolerances down to ±0.01 mm where applicable
Insulating covers on heating equipment
Threaded plugs in welding fixtures
Sensor housings and end caps
Protective caps near energized components
| 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.
Thread pitch, cap profile and dome geometry 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.
