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| ブランド名: | YUHONG |
| MOQ: | 200-500KGS |
| 価格: | 交渉可能 |
| パッケージの詳細: | スチールフレーム合板ケース（パイプ両端プラスチックキャップ付） |
| 支払条件: | L/C、T/T、AT SIGHT |
This is an embedded (G-type) fin tube designed for industrial heat exchangers. The base tube is manufactured from ASME SA179 seamless low-carbon steel, offering good thermal conductivity and pressure resistance for heat transfer service. High-purity 1060 aluminum fins (Al ≥ 99.6%) are precisely embedded into grooves on the tube's outer wall. This mechanical bonding ensures excellent contact, minimizing thermal resistance and preventing fin loosening.Compared to plain tubes, it greatly increases the heat exchange surface area, significantly boosting overall thermal efficiency. It is ideal for condensers, coolers, and waste heat recovery units operating in moderate temperature and corrosive environments.
Base Tube Chemical Composition (ASME SA179) (%)
| Element | C | Si (max) | Mn | P (max) | S (max) |
| Range | 0.06–0.18 | 0.25 | 0.27–0.63 | 0.035 | 0.035 |
Fin Material Chemical Composition (Al1060) (%)
| Element | Al (min) | Si+Fe (max) | Cu (max) | Mn (max) | Mg (max) | Zn (max) | Others (each) |
| Range | 99.60 | 0.35 | 0.05 | 0.03 | 0.03 | 0.05 | 0.03 |
Mechanical Properties (Base Tube)
| Tensile Strength (min) | Yield Strength (min) | Elongation (min) |
| 325 MPa | 180 MPa | 35% |
| Feature | ASME SA179 (Seamless) | ASME SA106 Gr.B (Seamless) |
| Primary Use | Heat Exchangers & Condensers | High-Temperature Pressure Piping |
| Form Factor | Tube (Specified by OD & BWG) | Pipe (Specified by NPS & Schedule) |
| Manufacturing | Cold Drawn (Better surface finish) | Hot Finished (Rougher surface) |
| Carbon Content | Low Carbon (0.06% - 0.18%) | Medium Carbon (Max 0.30%) |
| Tensile Strength | Min 325 MPa (Lower) | Min 415 MPa (Higher) |
| Yield Strength | Min 180 MPa | Min 240 MPa |
| Ductility | Excellent (Better for grooving/finning) | Moderate |
| Heat Transfer | Slightly higher due to thinner walls | Lower due to heavier wall thickness |
| Finning Suitability | Ideal for Embedded (G) Fins | Suitable, but harder to groove |
| Price | Higher (Due to cold drawing process) | Lower (Mass-produced hot finish) |
• Air-Cooled Heat Exchangers (AFC): Widely used in oil refineries and petrochemical plants for cooling process fluids, especially where high thermal stability is required.
• Power Generation: Applied in steam condensers, feed-water heaters, and Heat Recovery Steam Generators (HRSG) for efficient energy recovery.
• High-Temperature Services: Ideal for operating environments up to 400°C - 450°C, as the "G-fin" design prevents fin loosening during thermal expansion.
• Chemical Processing: Used in reactors and specialized heat transfer equipment where precise temperature control and seamless tube reliability are critical.
• Boiler Systems: Integrated into industrial boilers as economizer tubes to preheat water using flue gas, maximizing fuel efficiency.
• Oil & Gas Midstream: Utilized in gas compression stations and dehydration units for cooling natural gas.
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