Silicon Carbide Super-SIC®
Heat Exchangers
SUPER-SIC® heat exchangers have a unique design with silicon carbide (SiC) tubes and massive SiC tube-sheets. They are designed to operate under severe and corrosive conditions, being SiC universally inert.
SiC is produced by sintering of submicron silicon carbide powder in an extruding process. The sintering process results in a self-bonded, fine grained SiC product. These Shell & Tube heat exchangers are ideally made for heating, cooling and condensing of chemically aggressive process streams, typically containing highly concentrated Sulfuric Acid, Nitric Acid, Hydrofluoric Acid, pickling liquors, caustic soda and solvents from pharma synthesis etc.
Double tube-sheet
It is possible to segregate the process fluid and the service fluid with a separation chamber. In case of failure of O-rings sealing, no mix will occur between the two fluids (according to GNP criterium). Separation chamber can be eventually pressurized to avoid any leakage towards the external. Primary tube-sheet, in contact with process fluid, is always made of massive SiC.
Technical Specifications
- Extreme hardness
- High Strength
- Shell: diameter up to 350 mm, made of: Carbon Steel, Stainless steel, Glass-lined steel , PTFE-lined steel
- Silicon Carbide Tubes: from Ø 14 mm to Ø 35 mm, with max length 4500 mm (max heat transfer area: 40 m2)
- Working temperature range: -30/+240 °C, working pressure range: -1 bar / + 8 bar
- Certifications: CE, ATEX and FDA
Product Features
Corrosion
Resistance
High Thermal
Conductivity
High temperature
capability
Mechanical strength & resistance to thermal shock
Much Longer Service Life (Low Lifecycle Cost)
Compliance with
Standards
Frequently Asked Questions (FAQ)
Silicon carbide (SiC) heat exchangers are high-performance industrial heat exchangers whose heat-transfer surfaces are made from silicon carbide, a ceramic known for its exceptional thermal conductivity, chemical resistance, and mechanical strength at high temperatures. They are used when metals or polymers would corrode, oxidize, or melt.
Graphite heat exchangers and silicon carbide (SiC) heat exchangers are both used in corrosive chemical environments, but they differ significantly in material properties, performance, durability, and cost.
| Feature | Graphite | Silicon Carbide (SiC) |
|---|---|---|
| Corrosion resistance | Excellent (non-oxidizing acids) | Excellent (including oxidizing acids) |
| Oxidizer tolerance | Low | Very high |
| Thermal conductivity | Higher | High |
| Mechanical strength | Low | Very high |
| Pressure capability | Low | High |
| Temperature capability | Moderate | Very high |
| Cost | Lower | Higher |
| Typical use | HCl, phosphoric acid | HNO₃, hot H₂SO₄, high-purity processes |
