Wound Fin Tube ASTM A249 TP321 For Air Cooler , Heat Exchager , Condenser
| Base Tube Material | TP321 |
| Base Tube Standard | ASTM A249, ASME SA249 |
| Type | Wound, L type, LL Type, KL Type |
| Application | Air cooler, Cooling Tower, Heat Exchanger, Condenser |
| Fin type | L Type Fin Tube, LL Type Fin Tube, KLM Fin Tube |
| Fin Material | Aluminum, Copper, Stainless Steel, Carbon Steel |
TP321 is a titanium-stabilized austenitic stainless steel offering excellent resistance to intergranular corrosion following exposure to temperatures between 427°C to 816°C (800°F to 1500°F). This alloy is particularly suitable for high-temperature applications requiring oxidation and corrosion resistance.
When used in ASTM A249 TP321 Wound Fin Tubes, it provides robust performance and efficient heat transfer for applications in power generation, industrial boilers, chemical processing, and aerospace industries.
| Type | Description | Base tube O.D. (mm) | Fin pitch | Fin height | Fin thick |
|---|---|---|---|---|---|
| Wound | L / KL / LL Type Fin Tube | 16-63 | 2.1-5 | <17 | ~0.4 |
| Grade | C | Mn | Si | P | S | Cr | Ni | Ti |
|---|---|---|---|---|---|---|---|---|
| TP321 | ≤ 0.08% | ≤ 2.00% | ≤ 0.75% | ≤ 0.045% | ≤ 0.030% | 17.0-19.0% | 9.0-12.0% | 5x(C + N) minimum, 0.70% maximum |
| Tensile Strength | 515 MPa (75,000 psi) minimum |
| Yield Strength | 205 MPa (30,000 psi) minimum |
| Elongation | 40% minimum in 50 mm |
| Hardness | ≤ 95 HRB (Rockwell Hardness B) |
- Enhanced Heat Transfer: Fins significantly increase surface area for improved heat transfer rates
- Corrosion Resistance: TP321 provides excellent resistance to oxidation and intergranular corrosion
- Mechanical Bonding: Wound fin design ensures secure bond between fins and base tube
- High Thermal Conductivity: Aluminum fins ensure efficient heat exchanger performance
- Durable Construction: TP321 base tube withstands mechanical stress at high temperatures
Shell and Tube Heat Exchangers for chemical/petrochemical industries and Air-Cooled Heat Exchangers for industrial/HVAC applications.
Used in steam boilers and superheaters in power generation plants and industrial boilers requiring high temperature/pressure resistance.
Ideal for heat exchangers and condensers in chemical plants and petrochemical refineries handling corrosive substances.
Employed in aerospace heat exchangers where materials must withstand extreme temperatures and corrosive environments.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.