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Brand Name : YUHONG
Model Number : L Type Fin Tube , LL Type Fin Tube , KLM Fin Tube
Certification : ABS, DNV-GL, LR, BV, CCS, KR, ASME, TUV, SGS, BV, IEI, IBR, ISO9001, ISO 14001, ISO 18001
Place of Origin : China , Korea
MOQ : 1 PC
Price : 1 - 10000 USD
Payment Terms : L/C,T/T
Supply Ability : 10000 Tons/Month
Delivery Time : 5 - 90 Days
Packaging Details : Ply-Wooden Case
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
| 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) |
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.

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ASTM A249 TP321 Austenitic Steel Wound Fin Tube For Air Cooler Images |