Silicon Carbide Plate
High-performance SiC plates engineered for severe wear and high-temperature duty. Available in dense SSiC for maximum strength and gas-tightness, or cost-balanced RBSiC for general industrial service. Custom sizes, tight flatness, precision machining.
- Samples in 3–7 days
- Small batch in ~7 days
- 1 pc MOQ
SIC Plate Overview
Features
🔥 High Temp Resistance
Withstands up to 2700°C. Stable at 1600°C in air or 1900°C in inert gas — far beyond metals or alumina ceramics.
⚡ Thermal Conductivity
120–200 W/m·K thermal conductivity. Its low expansion (4.5×10⁻⁶/°C) ensures superior thermal shock resistance.
🧪 Chemical Stability
Resists most acids and bases (except HF). Oxidation creates a protective silica layer that blocks further corrosion.
🛠️ Mechanical Strength
Mohs hardness 9.2, flexural strength 400–600 MPa, and wear resistance over 10× that of steel.
Applications
🧲 Semiconductor Industry
Used in electrostatic chucks and heater substrates in wafer processing. Offers high thermal conductivity, insulation, and plasma resistance.
☀️ Renewable Energy
Applied in polysilicon casting furnace components in the PV industry. Replaces graphite with >3× lifespan at high temperatures.
💧 Hydrogen Energy
Serves as diaphragm material in electrolyzers, offering chemical stability and high-temperature durability.
🚀 Aerospace Applications
Used in rocket nozzles and turbine blade coatings. Combines lightweight with extreme thermal and mechanical endurance.
Product Variants
Zirsec provides a variety of silicon carbide plates, including:
(1) Sintered sic plates: offering high mechanical strength and thermal stability.
(2) Reaction-bonded sic plates: combining strong performance with versatile use.
(3) Recrystallized sic plates: known for outstanding purity and superior thermal properties.
| Recrystallized SiC | Sintered SiC | Reaction Bonded SiC | |
| Purity | 99.5% | 98% | SiC ≥ 82% Si: 15%~20% |
| Max. Working Temp. (C) | 1650 | 1550 | 1300 |
| Bulk Density (g/cm3) | 2.7 | 3.1 | > 3 |
| Appearance Porosity | < 15% | 2.5 | 0.1 |
| Flexural strength (MPa) | 110 | 400 | 380 |
| Compressive strength (MPa) | > 300 | 2200 | 2100 |
| Thermal expansion (10^-6/`C) | 4.6 (1200℃) | 4.0 (< 500℃) | 4.4 (< 500℃) |
| Thermal conductivity (W/m.K) | 35~36 | 110 | 65 |
| Main characteristics | High temp. High resistance. High purity | Fracture Toughness | Chemical Resistance |
FAQ
1) SSiC vs RBSiC: which grade should I pick?
2) What thickness do you recommend for kiln shelves?
3) Can you guarantee flatness?
4) What’s the max continuous temperature?
5) Do you supply drilled or slotted plates?
6) Can plates be polished for sealing?
7) How should I support plates in a kiln?
8) Chemical resistance?
9) Lead time and MOQ?
10) Can you add coatings?
11) How do you ship large plates safely?
Customization
From design to reverse engineering, we provide free technical consulting to help upgrade your equipment. We specialize in high-precision complex parts with ±0.01mm tolerances and special coatings like acid and oxidation resistance, tailored for demanding industrial applications.
FAQ
What types of silicon carbide products does Zirsec supply?
Zirsec offers a wide range of SiC components including tubes, beams, plates, crucibles, rollers, sealing rings, and custom mechanical parts for industrial, chemical, and semiconductor applications.
Can Zirsec provide customized sizes or shapes?
Yes. We support OEM and customized production based on your drawings, specifications, or working conditions.
Do you provide samples for testing?
Yes, sample orders are available for standard items. For custom-made components, small batch samples can be produced after design confirmation.
How can I request a quotation?
Simply fill out the contact form on this page with product type, quantity, and specifications. Our sales engineer will send you a detailed quotation within 24 hours.
Does Zirsec offer technical consultation or design assistance?
Absolutely. Our engineers provide material selection guidance, structural optimization, and technical support for your specific applications.
How does Zirsec ensure product quality?
All products undergo strict inspection procedures, including dimensional accuracy, density, strength, and corrosion resistance tests before delivery.
Tell us your requirements
Our technical engineer will reply with a custom solution and quotation within one working day.
