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Silicon Nitride
SINTRON Silicon Nitride (Si3N4) is a material designed for exceptional wear, molten metal, and corrosion resistance at a reasonable price. It can be formed into a variety of relatively complex shapes with good tolerance control, without incurring traditional hard tooling setup charges. It also exhibits exceptional oxidation and thermal shock resistance.
ADVANTAGES OF SINTRON
- High strength over a wide temperature range
- Thermally conductive
- High fracture toughness/hardness
- Good chemical resistance
- Nonwetting to molten nonferrous alloys
Product Information Sheet
Key Material Properties
| Mechanical | SI/Metric | Imperial |
| Density | 3.29 gm/cc | 205.4 lb/ft2 |
| Porosity | 0% | 0% |
| Color | Black | - |
| Flexural Strength | 830 MPa | 120.4 lb/in2x103 |
| Elastic Modulus | 310 MPa | 45 lb/in2x106 |
| Poisson’s Ratio | 0.27 | 0.27 |
| Hardness | 1580 Kg/mm2 | - |
| Fracture Toughness KIC | 6.1 MPa•m1/2 | - |
| Maximum Use Temperature (no load) | 1000 °C | 1830°F |
| Thermal Conductivity | 30 W/m•°K | 208 BTU•in/ft2•hr•°F |
| Coefficient of Thermal Expansion | 3.3x10-6/°C | 1.8x10-6/°C |
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