Features and Benefits
Saint Gobain SiSiC and NSiC products allow high precision, accuracy and speed in industrial metrology equipment, such as CMM and Positioning Equipment, due to their high specific stiffness, lightweight, low thermal expansion and high thermal conductivity. The unique combination of several key properties of silicon carbide makes it a superior choice to other materials, including alumina ceramic, aluminum, steel and granite. Key applications include CMM bridges and Z axis; guide rails and air-bearing stages.
Silicon carbide offers many advantages over traditional ceramic materials:
- Lightweight (~20% less)
- High specific stiffness (~25% higher)
- Low thermal expansion (~50% less)
- High thermal stability
| Properties | Unit | Value | ||
| Main Components |
SiC Si |
% % |
85 15 |
|
| Maximum Application Temperature1) | °C | 1380 | ||
| Bulk Density | EN 993-1 | kg/dm3 | 3.0 | |
| Apparent Porosity | EN 993-1 | Vol. % | 0 | |
| Young's Modulus | EN 843-2 | RT2) | GPa | 340 |
| Modulus of Rupture |
EN 993-6 EN 993-7 |
RT2) 1200°C |
MPa MPa |
260 260 |
| Coefficient of Thermal Expansion | EN 993-10 | α RT…1?300°C | 10-6/K | 4.5 |
| Thermal Conductivity | EN 993-15 | 1000°C | W/(m*K) | 35 |
1) Dependent on the corresponding operating conditions
2) Ambient temperature
Below listed dimensions cover the majority of stardart sizes. Larger sizes and tighter tolerances on request.
| Dimensions | Tolerance X mm | Wall Thickness +1/-0,5 mm | Max Length ± 2 mm | |
| Height H ± X mm | Width B ± X mm | |||
| 20 | 20 | ± 1,0 | 6 | 2000 |
| 25 | 25 | ± 1,0 | 6 | 2000 |
| 30 | 20 | ± 1,0 | 6 | 2000 |
| 30 | 30 | ± 1,0 | 6 | 2000 |
| 35 | 35 | ± 1,0 | 6 | 2000 |
| 40 | 20 | ± 1,0 | 6 | 2000 |
| 40 | 25 | ± 1,0 | 6 | 2000 |
| 40 | 30 | ± 1,0 | 6 | 3000 |
| 40 | 40 | ± 1,0 | 6 | 3500 |
| 50 | 30 | ± 1,0 | 6 | 3500 |
| 50 | 40 | ± 1,0 | 6,3 | 3500 |
| 50 | 50 | ± 1.0 | 6,3 | 3500 |
| 60 | 40 | ± 1.2 | 6,8 | 3500 |
| 60 | 50 | ± 1.2 | 6,8 | 3500 |
| 60 | 60 | ± 1.2 | 7,3 | 3500 |
| 70 | 40 | ± 1.4 | 7,5 | 3500 |
| 70 | 50 | ± 1.4 | 7,5 | 3500 |
| 70 | 60 | ± 1.4 | 7,5 | 3500 |
| 80 | 40 | ± 1.4 | 8 | 3500 |
| 80 | 60 | ± 1.4 | 8,5 | 3500 |
| 80 | 80 | ± 1.4 | 9 | 3500 |
