ASTM A179 Carbon Steel Seamless Tube Low Fin Tube For Heat Exchanger
ASTM A179 Carbon Steel Seamless Tube Low Fin Tube For Heat Exchanger
Product Description
ASTM A179 carbon steel seamless tube low fin tube is manufactured by rolling external fins directly from the base tube wall. Unlike high fins, the low fins are shorter in height but provide increased surface area, while maintaining the mechanical strength of the seamless tube. This type of fin tube is widely applied in heat exchangers, condensers, and coolers where compact size and efficient heat transfer are required.
Chemical Composition (ASTM A179 Base Tube)
| Element | C (max) | Mn | P (max) | S (max) |
|---|---|---|---|---|
| Content (%) | 0.06–0.18 | 0.27–0.63 | 0.035 | 0.035 |
Mechanical Properties (ASTM A179 Base Tube)
| Property | Requirement |
|---|---|
| Tensile Strength | ≥ 325 MPa |
| Yield Strength | ≥ 180 MPa |
| Elongation | ≥ 35% |
| Hardness | ≤ 72 HRB |
Features of Low Fin Tube
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Compact design: increased surface area without enlarging tube bundle size
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Stronger bonding: fins are an integral part of the tube (not attached separately)
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Good heat transfer efficiency: especially suitable for gas–liquid and liquid–liquid heat exchange
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Durability: seamless structure ensures high reliability under high temperature and pressure conditions
Advantages
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Enhanced heat transfer compared with plain tubes
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No risk of fin detachment since fins are extruded from the base tube
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Cost-effective and efficient solution for compact heat exchanger design
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Long service life with stable performance in demanding environments
Applications
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Heat exchangers in power plants, petrochemical plants, and refineries
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Condensers in refrigeration and air conditioning systems
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Oil & gas processing units
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Boiler and economizer equipment
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