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Silicon Carbide Seals Mechanical Seal Pumping Ring Silicon Carbide
Rings
Silicon carbide ceramics are much lighter and harder than other
ceramics and are resistant to acids and lyes.
Pressureless sintering techniques make it possible to manufacture
dense compacts of silicon carbide, making it a widespread
structural material. These ceramics are lightweight because silicon
carbide consists primarily of lightweight elements. They also have
low thermal expansion and high conductivity and are exceptionally
chemically stable.
They are used for fixed and moving turbine components, suction box
covers, seals, bearings, ball valve parts, and heat exchangers.
Technical parameters of SSIC:
Items | Unit | SSIC |
Volume density | g/cm3 | ≥3.10 |
Hardness | HRA | ≥92 |
Compressive strength | MPa | ≥2200 |
Flexural strength | MPa | ≥400 |
Silicon carbide content | % | ≥98 |
Modulus of elasticity | GPa | 400 |
Thermal conductivity | W/mK | 100-120 |
Max working temperature | ℃ | 1600 |
Coefficient of thermal expansion | 1.10-6m/k | 4.0 |
Technical parameters of RBSIC:
Items | Unit | RBSIC |
Volume density | g/cm3 | ≥3.03 |
Hardness | HRA | ≥90 |
Compressive strength | MPa | ≥2000 |
Flexural strength | MPa | ≥350 |
Free silicon content | % | ≤12 |
Modulus of elasticity | GPa | 350 |
Thermal conductivity | W/mK | 50-100 |
Max working temperature | ℃ | 1100 |