Overview
Anhui Xinfulong's Silicon Carbide (SiC) heat exchangers are engineered for the most demanding thermal management applications where traditional materials such as graphite, metals, and glass-lined steel reach their limits. Manufactured from high-purity reaction-bonded or sintered silicon carbide ceramic, our SiC heat exchangers deliver exceptional corrosion resistance, outstanding thermal conductivity, and long-cycle reliability in aggressive chemical, high-temperature, and ultra-pure environments.
With thermal conductivity 3–5 times that of stainless steel and inertness to virtually all acids, alkalis, and oxidizing media, silicon carbide heat exchangers represent the state-of-the-art solution for heating, cooling, condensation, evaporation, absorption, and heat recovery in corrosive process streams.
Key Features
-
Extreme Corrosion Resistance — Silicon carbide is inert to sulfuric acid (H₂SO₄), hydrochloric acid (HCl), nitric acid (HNO₃), hydrofluoric acid (HF), mixed acids, caustic soda (NaOH), and potassium hydroxide (KOH) across wide concentration ranges. Long-term immersion tests indicate mass-loss rates below 0.01%, supporting continuous operation in corrosive loops.
-
Exceptional Thermal Conductivity — With thermal conductivity of 120–180 W/m·K, SiC delivers outstanding heat exchange efficiency, requiring up to 70% less heat exchange area compared to glass equipment. Heat-transfer coefficients are increased by 20–40%, enabling compact footprint designs.
-
High-Temperature Stability — Maintains stable mechanical and chemical performance up to 1300°C continuous service, with flexural strength of 250–450 MPa even at elevated temperatures.
-
Superior Thermal Shock Resistance — Low thermal expansion coefficient (4.0–4.5×10⁻⁶/K) prevents cracking under rapid cooling or heating cycles, withstanding temperature shocks exceeding 300°C.
-
No Metal Ion Release — Chemically inert surface avoids leaching of Fe, Ni, Cr, or other metal ions. Extractables are typically below 1 ppm, satisfying the most stringent clean-process and semiconductor-grade purity requirements.
-
Ultra-Low Porosity — Open porosity under 0.1% eliminates fluid penetration, microbial retention, and fouling, ensuring reliable operation in CIP/SIP workflows across pharmaceutical and food applications.
-
Exceptional Wear Resistance — As the second hardest material on earth-5, SiC withstands high-velocity streams carrying solids without surface wear or deformation.
-
Leak-Free Sealing — Advanced sealing technologies including PFA-lined tubesheets, PTFE gaskets, and optional double tubesheet designs with safety chambers ensure highest reliability against leakages.
Available Configurations
Technical Specifications
Applications
Our silicon carbide heat exchangers are widely deployed in:
-
Semiconductor Manufacturing — Ultra-pure chemical heating/cooling, wet etching, wafer cleaning, and advanced node chemical temperature control. No metal ion contamination ensures process purity.
-
Wet Electronic Chemicals — Heating, cooling, and heat recovery of high-purity acids, solvents, and corrosive chemicals including concentrated sulfuric acid, nitric acid, and hydrofluoric acid.
-
Chemical Processing — Heat exchange in pickling lines, acid recovery systems, chlor-alkali processes, and mixed corrosive media with varying constituents.
-
Pharmaceutical & Biotech — High-purity fluid thermal management with zero contamination risk; GMP/FDA compliant. Supports CIP/SIP workflows.
-
New Energy — Battery chemical temperature control, photovoltaic wet processing, and energy system heat recovery.
-
Fine Chemicals & Environmental Engineering — Block-type heat exchangers for strong acid and alkali systems.
Why Choose Xinfulong SiC Heat Exchangers?
-
Superior Alternative to Graphite & Metals — Outperforms graphite, enamel, stainless steel, tantalum, Hastelloy, and fluoroplastics in corrosive and high-temperature environments-. Longer service life and reduced maintenance costs.
-
Cleanroom Manufacturing — Critical production processes carried out in Class 1000/10,000 cleanrooms, ensuring the highest levels of purity.
-
Industry-Leading Expertise — Backed by decades of fluoropolymer and advanced ceramic processing experience, with R&D collaboration with Japanese and Korean experts.
-
Proven Global Track Record — Hundreds of installations worldwide, trusted by clients across Europe, Japan, Korea, Taiwan (China), and beyond.
-
Comprehensive Quality Assurance — ISO 9001, ISO 14001, ISO 45001 certified with full in-house testing capabilities including dimensional accuracy, pressure testing, and surface fluorescence penetration testing.
-
End-to-End Service — From custom design and material selection to manufacturing, testing, and after-sales support. Fast and competent services for repairs and spare parts.
-
Patented Safety Features — Optional carbon fiber reinforcement (CARBOGUARD®) for SiC tubes provides additional safety against tube breakages under high-stress conditions.
Customization Options
We offer fully customizable silicon carbide heat exchangers to meet your specific process requirements:
-
Custom tube diameters, wall thicknesses, and lengths
-
Shell materials and lining options (carbon steel, stainless steel, PTFE-lined steel, glass-lined steel)
-
Special connection configurations (DIN/ANSI)
-
Double tubesheet designs with safety chambers
-
Removable headers for easy mechanical cleaning
-
Non-standard dimensions and capacities
-
Tailored thermal performance specifications
Contact our engineering team today to discuss your specific thermal management requirements. We'll deliver a customized silicon carbide heat exchanger solution engineered for your process — delivering superior corrosion resistance, exceptional thermal efficiency, and long-term reliability.
