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Silicon Carbide
Pump Components
Rotary Seal/Stationary Seal
Sealing Faces
O-Ring
Nonstandard
Standard
as The Client's Require
Standard
Standard
China
Standard
Junty or as The Client's Require
Standard
Junty or As the client's require
Standard or as The Client's Require
SIC, RBSIC, SSIC, SIC+C
China
6914900000
Product Description
Silicon Carbide (SiC) is one of the most popular high performance tribo-materials, which has been commercially available for more than twenty-five years. Its features include:
· Excellent abrasion and wear resistance
· Excellent corrosion resistance
· Low coefficient of friction
· Low coefficient of thermal expansion
· High thermal conductivity
· Hardness greater than Tungsten Carbide
Different grades of Silicon Carbide are available as following:
· Reaction Bonded Silicon Carbide (RB SiC) - a very economical material which gives excellent wear characteristics, as well as good chemical resistance.
· Sintered Silicon Carbide (SSiC) - the absence of free silicon makes it most resistant to chemically-aggressive fluids, and ideal for high temperature applications.
· Graphite-Loaded Silicon Carbide - this is a composite of silicon carbide and free graphite. Graphite is added to RB SiC (RB SiC + C) or SSiC (SSiC + C), to improve tribological behavior by enhanced lubricity.
| Parameter | Unit | RB SiC | SSiC |
| Density | g/cm3 | 3.0 - 3.05 | 3.1 |
| Free Silicon Content | - | 12% | - |
| Crystal Size | µm | 8 - 20 | 5 - 7 |
| Hardness | Rockwell | HRA 90 | HRA 93 |
| Compressive Strength | MPa | 2700 | 3000 |
| Flexural Strength | MPa | 400 | 400 |
| Fracture Toughness | MPa | 4.3 | 4.5 |
| Elastic Modulus | GPa | 390 | 410 |
| Poisson's Ratio | - | 0.15 | 0.15 |
| Coefficient of Thermal Expansion | 1 x 10-6 / K | 4.3 | 4.3 |
