Cold Wound Finned Tube for Heat Exchanger
4 month ago
Overview
Specification
| Standard | ASTM A192 |
| Grades | SA192 |
| Form | L-Foot |
| Manufacturing Process | Cold mechanical fin winding for strong bonding |
| Tube Outer Diameter | 12.7 mm – 63.5 mm (Customizable) |
| Tube Wall Thickness | 1.0–4.0 mm (Customizable) |
| Fin Height | 10–16 mm (Customizable) |
| Fin Thickness | 0.3–0.5 mm (Customizable) |
| Fins per Inch | 3–11 (Customizable) |
| Length | Up to 20 meters (Customizable) |
Key Features
- High Pressure and High Temperature Resistance: The SA192 base tube is designed specifically for high-pressure boiler environments, making it ideal for demanding APH and economizer conditions.
- High Fin Bond Strength: Our L-Foot Finned Tube utilizes a cold mechanical winding process to ensure a tight contact between the fins and the base tube, guaranteeing stable thermal conductivity.
- Excellent Mechanical Strength: Our tubes undergo tensile testing, hardness testing, and flattening testing, exhibiting high tensile and yield strength, making them suitable for demanding systems.
- Vibration and Corrosion Resistance: Cold-wound fins interlock tightly with the tube—similar to a nail driven securely into wood—creating a near-monolithic bond. This strong mechanical fusion provides superior resistance to vibration and corrosion compared to traditional L-type fin tubes, making it ideal for boilers and high-duty heat exchangers.
Chemical Composition
| Element | C | Mn | P | S | Si |
|---|---|---|---|---|---|
| Content (%) | 0.06–0.18 | 0.27–0.63 | ≤0.035 | ≤0.035 | ≥0.10 |
Mechanical Properties
| Property | Tensile Strength | Yield Strength | Elongation | Hardness |
|---|---|---|---|---|
| Requirement | ≥ 325 MPa | ≥ 180 MPa | ≥ 35% | ≤ 79 HRB |
Application
- Power generation industry: Boiler air preheaters, waste heat recovery devices
- Petrochemical industry: Gas-to-gas heat exchangers, furnace and heater waste gas recovery
- Industrial boilers: Steam generators, waste heat recovery steam generators
Possible Alternative Grades
- ASTM A179: Optimal thermal conductivity, thin-walled low-carbon steel, suitable for medium- and low-temperature heat exchangers.
- ASTM A210 Grade A1: Higher strength and higher temperature resistance, suitable for power plant air preheaters and refinery heaters.
- SA213 T11/T22: Alloy steel with excellent high-temperature resistance and oxidation resistance, suitable for superheater sections, systems > 500°C.
Q: Are you trading company or manufacturer ?
A: manufacturer,also can do trading.
Q: How long is your delivery time?
A: Generally speaking,it is 10-15 days if the goods are in stock,or it is 30-40 days if the goods are not in stock, it is according to quantity.
Q: Do you provide samples? is it free or extra ?
A: Yes, we could offer the sample for free charge but need pay the cost of freight.
Q: What is your terms of payment ?
A: Payment<=2000USD, 100% in advance. Payment>=2000USD, 30% T/T in advance ,balance before shippment.
If you have another question, pls feel free to contact with me.
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