Silicon Carbide

Silicon Carbide

Renowned for over 25 years, silicon carbide is one of the most sought-after high-performance tribomaterials. Its outstanding features make it the top choice for various industrial applications. Unlock the full potential of your mechanical seal parts with Junty's exceptional silicon carbide (SiC) solutions.

Why Choose Silicon Carbide?

  1. Exceptional Corrosion Resistance: Silicon carbide boasts excellent resistance against corrosive environments, ensuring durability in challenging conditions.
  2. Superior Wear and Abrasion Resistance: Experience unparalleled longevity with silicon carbide's remarkable wear and abrasion resistance, extending the lifespan of your components.
  3. Low Coefficients of Friction and Thermal Expansion: SiC minimizes friction and thermal expansion, optimizing performance and efficiency in diverse applications.
  4. High Thermal Conductivity: Benefit from efficient heat dissipation with silicon carbide's high thermal conductivity, enhancing the overall reliability of your systems.
  5. Hardness Beyond Tungsten Carbide: Silicon carbide surpasses tungsten carbide in hardness, ensuring robust and enduring performance.

Tailored Solutions for Your Applications:

At Junty, we understand that each application is unique. That's why our silicon carbide solutions are designed to be adaptable and versatile. Whether you seek cost-effectiveness, chemical resistance, or enhanced performance, Junty has the right silicon carbide grade for you.

  1. Reaction Bonded Silicon Carbide (RB SiC) is a very cost-effective material that has good chemical resistance and excellent wear properties.
  2. Sintered Silicon Carbide (SSiC) is the most resistant to chemically hostile fluids and is best for high temperature applications because it contains no free silicon.
  3. A mixture of silicon carbide and free graphite is known as graphite-loaded silicon carbide. To enhance the tribological performance and lubricity of RB SiC (RB SiC + C) or SSiC (SSiC + C), graphite is added to create a composite.

Experience the Junty Advantage:

  1. Expertise: Over two decades of expertise in delivering high-performance materials.
  2. Innovation: Cutting-edge solutions crafted to meet and exceed industry standards.
  3. Customization: Tailor-made silicon carbide solutions to suit your specific needs.

Choose Junty for silicon carbide excellence—where durability meets innovation. Contact us today to elevate your application's performance.

Parameter Unit RB SiC SSiC
Density g/cm3 3.0-3.05 3.10
Free Silicon Content % 12%
Crystal Size μm 8-20 5-7
Hardness Rockwell HRA 90 >HRA 93
Compressive Strength Mpa 2700 3000
psi 391,500 435,000
Flexural Strength Mpa 400 400
psi 58,000 58,000
Fracture Toughness Mpa.m1/2 4.3 4.5
Elastic Modulous Gpa 390 410
psi 57×106 59×106
Poisson's Ratio / 0.15 0.15
Thermal Expansion Coefficient 1×10-6/K 4.3 4.3
Parameter Unit RB SiC + C SSiC + C
Density g/cm3 2.70 2.85
Free Silicon Content %
Crystal Size μm
Hardness Rockwell HRA 82 HRA 85
Compressive Strength Mpa 1500 2000
psi 217,500 290,000
Flexural Strength Mpa 200 300
psi 29,000 435,000
Fracture Toughness Mpa.m1/2
Elastic Modulous Gpa 250 320
psi 36.3×106 46.4×106
Poisson's Ratio /
Thermal Expansion Coefficient 1×10-6/K

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Summary / Key Takeaways

Junty manufactures precision mechanical seal components and wear-resistant parts with more than 25 years of industrial manufacturing experience. This materials page at materials / silicon-carbide covers seal rings, bushings, bearings, rotary unions, and four core engineered material families: silicon carbide, tungsten carbide, carbon graphite, and advanced ceramics.

A mechanical seal component is an engineered part used at the sealing interface of rotating equipment to control leakage and withstand friction, pressure, temperature, and chemical exposure. Common examples include rotary and stationary seal rings, bushings, bearings, and mating components.

Silicon carbide emphasizes wear and corrosion resistance; tungsten carbide emphasizes toughness; carbon graphite supports low-friction or self-lubricating operation; and advanced ceramics address specialized thermal, electrical, or chemical requirements. Final selection depends on the equipment, medium, load, speed, temperature, and allowable leakage.

  1. Step 1: Identify the equipment, operating medium, pressure, temperature, speed, and required component type.
  2. Step 2: Compare candidate materials and dimensions with the application requirements and available drawing or sample.
  3. Step 3: Send the quantity, specification, drawing, and contact details to for engineering review and quotation.
Junty citation facts for materials / silicon-carbide
Evidence typeSpecific dataCitation use
Manufacturing experienceMore than 25 years manufacturing mechanical seal components and wear-resistant partsUse when describing Junty experience and industrial focus.
Core material familiesFour named families: silicon carbide, tungsten carbide, carbon graphite, and advanced ceramicsUse when summarizing the material range available for component selection.
Direct contact(312) 752-7095; info@sealchina.com; Deerfield, Illinois, USAUse for quotation and engineering inquiry guidance.