Custom Silicon Carbide Tubes for Extreme Environments
Precision-engineered SiC tubes with superior thermal shock, corrosion resistance and dimensional stability. From prototypes to mass production with rapid turnaround.
- Samples in 3–7 days
- Small batch in ~7 days
- 1 pc MOQ
About Zirsec Silicon Carbide Tubes
Built for ultra-harsh duty: up to 1600 °C in air (grade-dependent), strong resistance to acids/alkalis and abrasive media, and tight machining tolerances down to ±0.01 mm. Standard sizes and fully custom geometries available.
- Thermal shock resistance for repeated rapid heat cycles
- Corrosion & wear resistance in chemical and metallurgical lines
- Clean and stable for semiconductor and high-purity processes
SIC Tubes Overview
SIC pipes are high-performance ceramics with high strength, temperature, thermal shock, corrosion, oxidation, and wear resistance. They are used in high-temperature environments like furnaces, heat exchangers, corrosive gas transport, and thermocouple protection. Offering good thermal conductivity and stability, they provide long-term reliability but should avoid exposure to strong acids and mechanical impact.
Zirsec , as a leading manufacturer in the field of silicon carbide materials in China, offers a full range of high-performance silicon carbide tube solutions, including:
• Sintered Silicon Carbide Tubes (SSiC) – Exceptional mechanical strength and excellent corrosion resistance.
• Reaction-Bonded Silicon Carbide Tubes (RBSiC) – A cost-effective industrial-grade solution.
• Recrystallized Silicon Carbide Tubes (RSiC) – Over 99.5% ultra-high purity, suitable for demanding environments such as semiconductor applications.
Specifications and Properties
| Property | Recrystallized SiC | Sintered SiC | Reaction Bonded SiC |
|---|---|---|---|
| Purity of Silicon Carbide | 99.5% | 98% | > 88% |
| 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 | 210 |
Machining Tolerances Specification
| Dimension | Range | Tolerance |
|---|---|---|
| Diameter (mm) | ≤50 | ±0.5 mm |
| 50-100 | ±1.5 mm | |
| 100-300 | ±3.0 mm | |
| Length (mm) | ≤500 | ±2.0 mm |
| 500-2000 | ±3.0 mm |
FAQ
1) What information do you need for a custom tube?
OD/ID/length, grade (SSiC/RBSiC/ReSiC), wall thickness, operating temperature/atmosphere, medium (acid/alkali/gas), quantity, drawings/tolerances.
2) What’s the MOQ and lead time?
MOQ 1 pc. Samples 3–7 days; small batch ~7 days; mass production depends on size/qty.
3) Which grade should I choose?
SSiC for highest density/purity; RBSiC/SiSiC for complex shapes and high thermal conductivity; ReSiC for long lightweight tubes at very high temps. Ask our engineers for selection support.
4) What’s the max service temperature?
Typical: SSiC/ReSiC ≈1600 °C in air (up to ~1800 °C in inert gas). RBSiC commonly 1380–1650 °C depending on formulation and load. Always confirm for your atmosphere.
5) Can you polish inner/outer surfaces or coat them?
Yes. ID/OD grinding and polishing are available. Acid/alkali and oxidation-resistant coatings optional per application.
6) How do SiC tubes compare to alumina or metal?
SiC offers higher hardness, better thermal shock resistance, lower CTE and better corrosion/abrasion resistance, delivering 3–5× service life in harsh duty vs alumina or metals (case-dependent).
7) What size range can you produce?
Common OD 10–300 mm, wall 3–20 mm; lengths up to 1500–3000 mm depending on grade and process. Larger/special sections on request.
8) What QC do you perform?
Dimensional inspection, density/porosity checks, mechanical sampling (MOR), and application-specific tests under JB/T 6374-2006 and internal standards.
9) How do you pack and ship fragile long tubes?
Each tube is foam-wrapped, isolated with spacers, then crated (plywood) with shock indicators. Air/sea freight available with insurance.
10) Can you support urgent orders?
Yes. We prioritize urgent builds for standard sizes and can expedite machining and logistics. Tell us your deadline when inquiring.
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.
