Product Details
1. Overview of Silicon Carbide Ceramic Multi-channel Heat Exchange Tube
1.1 Definition and Formation
Silicon Carbide Ceramic Multi-channel Heat Exchange Tubing is a high-performance non-oxide structural ceramic heat transfer component, manufactured via high-temperature sintering of high-purity silicon carbide raw materials. Unlike traditional single-hole metal tubes and ordinary single-channel SiC pipes, this product features integrally formed multi-channel internal flow passages inside one tube body.
The production process adopts precise dry pressing or extrusion molding, followed by sintering at temperatures exceeding 2100°C under inert atmosphere. The dense SiC crystal framework forms without adding massive sintering aids. Uniform, parallel internal multi-channels are precisely reserved during molding, achieving one-piece forming with no internal welding seams. It eliminates leakage risks found in assembled heat exchangers and serves as the core heat exchange element for high-temperature, corrosive industrial heat exchange equipment. Main manufacturing bases are distributed across China, Germany and the United States, supplying global chemical, metallurgy and new energy industries.
1.2 Classification and Grade Standards
Based on sintering technology, multi-channel silicon carbide heat exchange tubes are mainly divided into recrystallized silicon carbide (R-SiC) and reaction-bonded silicon carbide (RB-SiC) grades.
Recrystallized SiC multi-channel tubes feature ultra-high purity, excellent high-temperature oxidation resistance, suitable for long-term service above 1300°C. Reaction-bonded SiC products deliver superior cost performance, widely used within 1000°C medium-temperature working conditions.
Premium customized heat exchange tubes undergo precision machining and surface finishing to optimize flow channel smoothness. Products can comply with international pressure vessel and industrial heat exchanger standards. Characterized by outstanding thermal conductivity, extreme corrosion resistance and long service life, multi-channel silicon carbide heat exchange tubing has gradually replaced alloy metal heat exchange tubes and graphite tubes, becoming an indispensable sustainable heat transfer material with fast-growing market demand.
2. Core Characteristics of Silicon Carbide Ceramic Multi-channel Heat Exchange Tubing
2.1 Physical Structure Characteristics
The comprehensive performance of multi-channel silicon carbide heat exchange tubing originates from dense silicon carbide crystal phase and its unique multi-channel integrated structure, and high thermal conductivity stands out as its core advantage.
Its thermal conductivity reaches 120~220 W/(m·K), far exceeding stainless steel, graphite and alumina ceramic materials. The built-in parallel multi-channel design greatly enlarges the heat exchange contact area within limited overall dimensions, significantly boosting heat exchange efficiency. The integrated monolithic structure delivers exceptional structural rigidity, maintaining stable dimensional accuracy under continuous temperature fluctuation. It possesses outstanding abrasion resistance and excellent fluid circulation performance, preventing particle deposition and blockage inside flow channels.
Its minor structural limitation lies in inherent ceramic brittleness, meaning violent external impact must be avoided during installation and operation. Reasonable pipeline support design and buffer connection structure can effectively overcome this weakness and extend continuous operating cycle.
2.2 Chemical & Thermal Performance Characteristics
Silicon carbide multi-channel heat exchange tubing exhibits extraordinary chemical inertness. It resists erosion from strong acid, weak alkali, organic solvents and most corrosive flue gas. No passivation protection layer is required during operation, and it will not generate metal ion contamination, perfectly fitting fine chemical and lithium material production requirements.
The material boasts a low thermal expansion coefficient and excellent thermal shock resistance. It can withstand frequent rapid heating and cooling cycles without cracking. Continuous working temperature ranges from -40°C up to 1350°C. Unlike metal heat exchange pipes, it will not soften, creep or oxidize under long-term high-temperature environments. In high-temperature flue gas waste heat recovery, acid-containing medium heat exchange and molten salt heat transfer scenarios, it maintains stable performance for years.
3. Main Application Fields
Multi-channel silicon carbide heat exchange tubing is widely adopted across numerous sophisticated industrial sectors.
In chemical industry, it is used for corrosive medium heating, condensation and waste heat recovery. In non-ferrous metallurgy, it serves as high-temperature flue gas heat exchange components. The new energy industry applies it for lithium battery raw material calcination heating and cooling systems. It is also popular in environmental protection waste heat recovery equipment, high-temperature kiln heat exchangers and fine pharmaceutical production heat transfer systems.
Compared with conventional heat exchange materials, multi-channel SiC heat exchange tubes cut equipment volume, lower later maintenance frequency, and reduce overall operation costs for end users. With tightening requirements for corrosion resistance and energy conservation globally, multi-channel silicon carbide heat exchange tubing sees rising adoption rate in high-end industrial heat exchange systems.
DATASHEET
|
项目
Item
|
单位 |
常压烧结碳化硅
SSIC
|
反应烧结碳化硅
RBSIC/SISIC
|
重结晶烧结碳化硅
RSIC
|
|
最高使用温度
Max temperature of Application
|
℃ |
1600 |
1380 |
1650 |
|
密度
Density
|
g/cm3 |
>3.1 |
>3.02 |
>2.6 |
|
气孔性
Open Porosity
|
% |
<0.1 |
<0.1 |
15% |
|
抗弯强度
Bending Strength
|
Mpa |
>400 |
250(20℃) |
90-100(20℃) |
|
Mpa |
|
280(1200℃) |
100-120(1100℃） |
|
弹性模量
Modulus of Elasticity
|
Gpa |
420 |
330(20℃) |
240 |
|
Gpa |
|
300(1200℃) |
|
|
热传导系数
Thermal Conductivity
|
W/m.k |
74 |
45(1200℃) |
24 |
|
热膨胀系数
Coefficient of Thermal Expansion
|
K-1x10-6 |
4.1 |
4.5 |
4.8 |
|
维式硬度
Vickers Hardness HV
|
Gpa |
22 |
20 |
|
|
耐酸碱度
Acid Alkaline-proof
|
|
优（excellent） |
优（excellent） |
优（excellent） |
Development History
Patents and certification
We’ve obtained various global certifications including CE, EMC, LVD, RoHS, FDA, MSDS, ISO 9001, SGS and TUV. We also own eight registered trademarks and forty technical patents to support independent R&D.
Our proprietary core technologies run through all product lines: porous ceramics, industrial ceramic components, special glass, metallized ceramics, liquid absorption cotton, ozone generators and silicone goods. All products are manufactured in strict accordance with international quality standards, delivering reliable and high-performance solutions that have gained wide recognition and market trust worldwide.
Package
We adopt scientific and standardized packaging solutions tailored to product characteristics to effectively prevent collision, extrusion, dust and moisture damage. With mature global transportation system and strict shipment inspection procedures, we ensure all products remain intact and stable during long-distance delivery, providing customers with safe, efficient and reliable one-stop logistics service.
Services
Inquiry & Customization
We provide fast and accurate quotation response for all your inquiries. Flexible OEM & ODM customization solutions are available to meet your unique product design, packaging and branding requirements.
Order Quality Control
We keep clients updated with full production progress throughout the whole order cycle. Our QC team carries out strict comprehensive pre-shipment inspection to guarantee all goods comply with your quality standards before delivery.
Customs Document Support
We prepare a full set of standard export documents including commercial invoice, packing list, certificate of origin and other certification papers, to ensure smooth global customs clearance for shipments to all destinations worldwide.
One-Stop Logistics
Multiple shipping methods including sea freight, air freight and express delivery are offered to match your schedule and budget. We supply real-time cargo tracking service so you can monitor shipment status anytime.
Flexible Payment
We support a wide range of secure international payment terms such as T/T, L/C, Western Union and other mainstream cross-border settlement methods to reduce your cross-border transaction risks.
After-Sales Support
Our professional after-sales team offers timely technical and business support all year round. We maintain steady long-term stable supply capacity to fully back up your continuous market sales and project demands.
FAQ
01
Question: Can you produce based on customers’ drawings or physical samples?
Answer: Absolutely yes. We accept technical drawings in all mainstream file formats as well as actual physical samples. Before formal production, our engineering team will provide a full professional DFM feasibility evaluation for your reference.
02
Question: How long is the production lead time for custom orders?
Answer: Sample lead time: 3–7 working days. Custom mold lead time: 5–10 working days (we will confirm the cycle separately with you for complex molds). Mass production lead time: 7–20 working days, depending on product structure complexity and order quantity.
03
Question: What’s your minimum order quantity for custom products?
Answer: We provide flexible MOQ solutions for all customized items. We will try our best to set a low minimum order volume to support your small-batch trial orders, meanwhile we can handle stable mass production to satisfy your long-term bulk demands.
04
Question: What customization services can you provide?
Answer: We support comprehensive one-stop customization, including product size, shape, appearance, precision tolerance, surface treatment, hole grooving, bending, cutting and adjustable high-temperature resistant parameters. Custom engraved LOGO and exclusive customized packaging are also available as extra personalized options upon request.
05
Question: Do you accept third-party inspection of finished products?
Answer: Yes, we fully cooperate with all mainstream authorized third-party testing institutions. Well-known organizations such as SGS, BV and other internationally recognized inspection bodies are all acceptable. We can supply complete official inspection reports and material certification documents as you require.
06
Question: Can you customize raw material options for products?
Answer: Sure. We can select and match appropriate raw materials according to your application scenarios, working conditions and performance requirements, including alumina, zirconia, quartz, silicone and other special engineering materials, and adjust related performance parameters to meet your usage standards.
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