Stainless Steel ASTM A213 TP304 Low Finned Tubes For Condensers In Power Plants
Low Finned Tubes Stainless Steel ASTM A213 TP304 For Condensers In Power Plants
ASTM A213 specification for seamless ferritic and austenitic alloy steel boiler, superheater, and heat exchanger tubes.
Chemical Composition (%)
| Grade | C | Mn | P | S | Si | Cr | Ni |
| TP304 | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 |
18.0-20.0 |
8.0-11.0 |
Mechanical Properties
| Grade | Tensile Strength,min | Yield Strength (0.2%Offset,min) | Elongation min. | Hardness, max | |
| TP304 | 75ksi (515 MPa) | 30ksi (205 MPa) | 35% | 192HBW/200HV | 90HRB |
Low Fin Tubes/Integral Fin Tubes Material:Typically constructed from materials such as carbon steel, stainless steel, alloy or copper, providing durability and resistance to corrosion.
Stainless steel (SS) low finned tubes play a critical role in enhancing the efficiency, durability, and reliability of condensers in power plants.Their use leads to higher plant efficiency, lower maintenance costs, and extended equipment life.
Advantages
| Enhanced Heat Transfer Efficiency | By increased surface area;optimal steam condensation;compact design. |
| Corrosion & Erosion Resistance | Stainless steel resists scaling & fouling;With longer service life;Erosion protection. |
| High-Pressure & Temperature Stability | Maintains structural integrity under high-pressure steam and thermal cycling. Suitable for both subcritical and supercritical power plant designs. |
| Reduced Fouling & Maintenance | The fin geometry discourages scale deposition and microbial growth. Lower risk of blockages compared to high-finned tubes. |
Application ( Not limited to the following )
Heat Exchangers & Condensers
Petrochemical/Oil & Gas:
Used in shell-and-tube heat exchangers for viscous fluids(stainless steel resists H₂S, chlorides, and acidic environments).
Power Plants:
Condensers in steam turbines or waste heat recovery systems.
(Steam Surface Condensers,Air-Cooled Condensers (ACC),Hybrid (Wet/Dry) Cooling Systems,Waste Heat Recovery Condensers)
Refrigeration:
Evaporators/condensers in ammonia or Freon-based systems.
Marine & Desalination
Seawater-cooled condensers (resists saltwater corrosion)
Multi-effect distillation (MED) desalination units
HVAC Systems
Specifications For Various Types Of Finned Tubes
Our finned tubes include the following types:
| Type | Description | Base tube | Fin specification (mm) | ||
| O.D. (mm) | Fin pitch | Fin height | Fin thick | ||
| Embedded | G-type fin tube | 16-63 | 2.1-5 | <17 | ~0.4 |
| Extruded | Single metal / Combined metal | 8-51 | 1.6-10 | <17 | 0.2-0.4 |
| Low fin tube / T-type fin tube | 10-38 | 0.6-2 | <1.6 | ~0.3 | |
| Bamboo tube / corrugated tube | 16-51 | 8-30 | <2.5 | ~0.3 | |
| Wound | L / KL / LL type fin tube | 16-63 | 2.1-5 | <17 | ~0.4 |
| String | String fin tube | 25-38 | 2.1-3.5 | <20 | 0.2-0.5 |
| U-type | U-type fin tube | 16-38 | / | / | / |
| Welding | HF-welding fin tube | 16-219 | 3-25 | 5-30 | 0.8-3 |
| H/HH type fin tube | 25-63 | 8-30 | <200 | 1.5-3.5 | |
| Serrated spiral fin tube | 25-219 | 2-7 | <38.1 | 0.9-2.0 | |
| Studed fin tube | 25-219 | 8-30 | 5-35 | φ5-20 | |
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