silicon carbide ceramics

Precision-engineered from pressureless sintered (SSiC) and reaction-bonded (RBSiC) silicon carbide, these industrial structural ceramics deliver extreme diamond-like hardness (HV > 2500), superior thermal conductivity (up to 130 W/(m·K)), and exceptional dimensional stability up to 1600°C. Engineered specifically for hostile industrial environments characterized by aggressive chemical attack, extreme abrasion, and high thermal shock, our components provide extended operational life for mechanical seals, semiconductor wafer chucks, and heavy-duty slurry nozzles. Full custom CNC diamond grinding available with tolerances down to ±0.002 mm.

Product Description

Silicon carbide nozzle and wear-resistant parts Silicon carbide disc with precision-machined holes

 

Core Advantages & Key Features

  • Near-Diamond Micro-Hardness & Wear Resistance: Achieves a Vickers hardness exceeding 2500 HV (Mohs 9.5), outperforming tungsten carbide and providing exceptional erosion resistance against abrasive slurries and high-velocity particulate impingement.

  • Superior Thermal Conductivity & Low Thermal Expansion: Delivers high thermal conductivity of 110–130 W/(m·K) combined with a low coefficient of thermal expansion (4.0 × 10⁻⁶/K), preventing thermal shock fracturing and maintaining micron-level dimensional stability.

  • Extreme Chemical Inertness Across pH 0–14: Completely impermeable and chemically inert to aggressive mineral acids, hot caustic solutions, and molten halides, preventing chemical pitting and intergranular leaching.

  • High-Temperature Structural Integrity up to 1600°C: Exhibits virtually no strength degradation or creep deformation under load in air at temperatures up to 1400°C (up to 1600°C in inert environments), far exceeding conventional technical ceramics.Ceramic injection molding workshop at Artec factory Kiln firing ceramic parts at high temperature

Technical Specifications

Property Testing Standard Metric Value (SSiC) Imperial / Alternate
Material Formulation — Sintered Silicon Carbide (SSiC) High-Purity Technical Grade
Purity (SiC Content) Chemical Titration ≥ 98.5 % Alpha Phase SSiC
Density ASTM C373 ≥ 3.10 g/cm³ 0.112 lb/in³
Flexural Strength (20°C) ASTM C1161 400 – 480 MPa 58 – 70 ksi
Compressive Strength ASTM C1424 > 3500 MPa > 507 ksi
Elastic Modulus ASTM C1259 400 – 420 GPa 58 – 61 Mpsi
Vickers Hardness (HV0.5) ASTM C1327 2500 – 2800 HV ~9.5 Mohs
Fracture Toughness (KIC) ASTM C1421 3.8 – 4.5 MPa·m¹/² 3.5 – 4.1 ksi·in¹/²
Thermal Conductivity (20°C) ASTM E1461 110 – 130 W/(m·K) 763 – 902 BTU·in/(hr·ft²·°F)
Thermal Expansion Coeff. ASTM E228 4.0 × 10⁻⁶ /K (20–1000°C) 2.22 × 10⁻⁶ /°F
Max Working Temp (Air) Continuous 1400 °C (1600 °C in Inert) 2552 °F (2912 °F)
Machining Tolerance In-house Metrology ±0.002 mm ±0.00008 in

Industrial Applications

  • Mechanical Seals & Dynamic Bushings: Face seals, thrust bearings, and journal bushings in petrochemical refineries, centrifugal pumps, and chemical agitators, preventing catastrophic seal runaway in volatile or slurry-laden media.

  • Semiconductor Wafer Processing & Lithography: High-purity structural components, electrostatic chuck (ESC) baseplates, vacuum end effectors, and lithography mirror substrates requiring ultra-low thermal drift, high specific stiffness, and plasma resistance.

  • Flue Gas Desulfurization (FGD) & Wear Components: Heavy-duty swirl nozzles, hydrocyclone lining cones, and sandblast venturi orifices exposed to severe cavitation, acidic slurry turbulence, and dry particle erosion.

  • High-Temperature Kiln Furniture & Heat Exchangers: High-load structural beams, burner nozzles, rollers, and tubular ceramic heat exchanger arrays operating continuously in oxidizing or reducing furnace atmospheres up to 1400°C.

Engineer Your Silicon Carbide Solution with Certified Specialists

Whether you require tight-tolerance CNC diamond precision grinding or high-volume custom molds, our materials engineers provide in-depth DFM (Design for Manufacturing) evaluations, CMM dimensional verification, and material composition inspection reports.

  • Fast Feasibility Review & Detailed Quote within 24 Hours

  • Strict Quality Assurance (ISO 9001 Certified & CMM Dimensional Reports)

  • Submit CAD Drawings (STEP, DWG, IGES) or Consult with an Application Engineer