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Wound L Type Fin Tube ASTM A249 TP304 For Heat Exchanger , Air Cooler
Grade TP304 is a widely used austenitic stainless steel known for its excellent corrosion resistance, formability, and weldability. It is a member of the 300 series of stainless steels and is composed mainly of chromium and nickel, which provide its outstanding properties.
Wound L Type Fin Tube ASTM A249 TP304 is a specialized heat exchanger component that combines the properties of Grade TP304 stainless steel tubing with the efficient heat transfer benefits of L type fins.
Type | Description | Base tube | Fin specification (mm) | ||
O.D. (mm) | Fin pitch | Fin height | Fin thick | ||
Wound | L / KL / LL Type Fin Tube | 16-63 | 2.1-5 | <17 | ~0.4 |
Chemical Composition:
Grade | Cr | Ni | C | Mn | P | S | Si | N |
SA179 | 18.0–20.0% | 8.0–10.5% | ≤ 0.08% |
≤ 2.00% |
≤ 0.045% | ≤ 0.030% | ≤ 0.75% | ≤ 0.10% |
Mechanical Properties:
Tensile Strength | 515 MPa (75,000 psi) minimum |
Yield Strength | 205 MPa (30,000 psi) minimum |
Elongation | 40% minimum in 50 mm |
Hardness | ≤ 90 HRB |
Key Features
Applications:
1. Heat Exchangers
2. Air Coolers
3. Food and Beverage Industry