Silicon Carbide
Silicon carbide (SiC) ceramics are ceramic materials primarily composed of silicon carbide. They exhibit high hardness, high strength, high thermal conductivity, low thermal expansion coefficient, excellent chemical stability, and oxidation resistance, making them widely used in various fields
| Material grades | Characteristics |
Density (g/cm3) |
Rockwell hardness (HRA) |
Elastic Modulus (GPa) |
Bending Strength (MPa) |
compressive strength (MPa) |
Thermal Conductivity (25℃) {W/(m.k )} |
Coefficient of Thermal Expansion (1x10-6/℃) (20-1000℃) |
Application |
| DX101 (RBSiC) | SiC88% | ≥3.05 | 90.6 | 375 | 374 | 2353 | 128 | 4.81 | |
| DX101A (RBSiC) | SiC 90% | 3.08 | 91 | 400 | 400 | ≥2200 | 190 | 2.73 | |
| DX101B (RBSiC) | Metal impurities <500ppm | ≥3.06 | 91 | 400 | 400 | ≥2200 | 190 | 2.73 | |
| DX102 (RBSiC-G) | RBSiC+G | 2.80 | 80 | ||||||
| DX201 (SSiC) | SSIC | ≥3.10 | 94.1 | 425 | 436 | 2440 | 153 | 4.94 | |
| DX202 (SSiC-G) | 10% G | 2.90-2.95 | 89.5 | 291 | 276 | 895 | 137 | 4.80 | |
| DX202B (SSiC-G) | 10% G | 2.90-2.95 | 2332 (HV0.5) | 318 | 348 | 1464 | 132 | 4.73 | |
| DX202C (SSiC-G) | 15% G | 2.80-2.85 | / | 249 | 284 | 1176 | 97.9 | 4.66 | |
| DX202D (SSiC-G) | 20% G | 2.70-2.78 | / | 214 | 260 | 1046 | 101 | 4.68 | |
| DX202E (SSiC-G) | 30% Graphite | ≥2.70 | 681 (HV0.5) | 170 | 242 | 1031 | 77.5 | 4.69 | |
| DX203 (SSiC-P) | SSIC+Porous | 3.0-3.05 | 92.6 | 359 | 314 | / | 149 | 4.96 | |
| DX204 (SSiC-G-P) | SSIC+P+ Graphite | 2.80-2.84 | / | 336 | 232 | / | 135 | / |
Domestic silicon carbide sealing ring leading industry
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