G Type Fin Tube ASTM Standard Finned Aluminum Tubing with High Thermal Efficiency and Customizable Design for Heat Exchangers
Λεπτομέρειες προιόντος
ASTM Standard Finned Aluminum Tubing
,High Thermal Efficiency Heat Exchanger Tube
,Customizable Design G Type Fin Tube
G Type Fin Tube SA179 Stainless Steel Finned Aluminum Tubing For Heat Exchanger
【Material】
The G Type Fin Tube consists of a carbon steel base tube (SA179) and aluminum fins that are mechanically embedded into the outer surface of the tube in a G-shaped groove. This design ensures excellent thermal contact between the fin and the tube, enhancing heat transfer efficiency while maintaining mechanical stability.
【Specifications】
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Base Tube Material: ASTM A179 Seamless Carbon Steel
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Fin Material: Aluminum 1050 / 1060 / 1070 / 5052
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Fin Type: G-type (Embedded)
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Tube OD: 12.7 mm – 63.5 mm
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Tube Wall Thickness: 1.0 mm – 5.0 mm
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Fin Height: 5 mm – 16 mm
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Fin Thickness: 0.3 mm – 0.5 mm
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Fin Pitch: 2.0 mm – 5.0 mm
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Tube Length: Up to 12 meters (customizable)
【Main Features】
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Excellent Heat Transfer Efficiency: The tight mechanical bond between the fin and tube maximizes heat exchange performance.
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Corrosion and Oxidation Resistance: The aluminum fins provide superior resistance to oxidation and atmospheric corrosion.
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High Temperature and Pressure Resistance: Ideal for air coolers and heat exchangers operating under demanding conditions.
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Easy Maintenance: The robust mechanical joint prevents fin loosening and ensures long-term reliability.
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Customizable Design: Fin height, thickness, pitch, and materials can be adjusted per customer requirements.
【Our Advantages】
As a professional heat exchanger fin tube manufacturer, we focus on precision, quality control, and performance consistency.
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Strict Tolerance Control:
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Tube straightness ≤ 1 mm/m
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Dimensional tolerance within ±0.1 mm
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Fin height tolerance ±0.2 mm
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Excellent Bonding Quality:
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The G-type fin is embedded by high-precision rolling equipment ensuring >95% contact rate between fin and tube.
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Enhanced heat transfer coefficient compared to standard wrapped fin tubes.
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Material Versatility:
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Optional fin materials: Aluminum, Copper, Stainless Steel, or Carbon Steel to match specific heat exchanger media and corrosion conditions.
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Quality Assurance:
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100% eddy current and hydrostatic testing before delivery.
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Surface cleaning, anti-corrosion coating, and protective capping available upon request.
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Technical Support:
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Custom engineering solutions for air coolers, boilers, condensers, and petrochemical heat exchangers.
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【Chemical Composition】
| Grade | C (%) | Mn (%) | P (%) | S (%) | Si (%) |
|---|---|---|---|---|---|
| ASTM A179 | ≤0.06 | 0.27–0.63 | ≤0.035 | ≤0.035 | ≤0.25 |
| ASTM A192 | ≤0.12 | 0.27–0.63 | ≤0.035 | ≤0.035 | ≤0.25 |
| ASTM A210 Gr.C | ≤0.35 | 0.29–1.06 | ≤0.035 | ≤0.035 | ≤0.10 |
| EN 10216-2 P235GH | ≤0.16 | 0.60–1.20 | ≤0.025 | ≤0.020 | ≤0.40 |
| JIS G3461 STB340 | ≤0.17 | 0.30–0.80 | ≤0.035 | ≤0.035 | ≤0.35 |
【Mechanical Properties】
| Grade | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Hardness (HB) |
|---|---|---|---|---|
| ASTM A179 | ≥325 | ≥180 | ≥35 | ≤72 |
| ASTM A192 | ≥325 | ≥180 | ≥35 | ≤72 |
| ASTM A210 Gr.C | ≥485 | ≥275 | ≥30 | ≤89 |
| EN 10216-2 P235GH | 360–500 | ≥235 | ≥25 | ≤85 |
| JIS G3461 STB340 | 340–480 | ≥205 | ≥30 | ≤85 |
【Standards】
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ASTM: A179 / A192 / A210
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EN: 10216-2 P235GH
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JIS: G3461 STB340
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GB: 5310 / 3087
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G-Type Fin Manufacturing Standard: Based on international heat exchanger fin tube manufacturing codes and ASME practices.
【Application Fields】
G-type finned tubes are widely used in industrial heat exchangers and air-cooled systems requiring high thermal efficiency and corrosion resistance.
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Power Generation: Air coolers, condensers, economizers.
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Petrochemical Industry: Process heaters, gas coolers, oil refineries.
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HVAC Systems: Air handling units, heat recovery systems.
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Automotive & Marine: Intercoolers, charge air coolers.
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Boiler Manufacturing: Waste heat recovery and flue gas cooling systems.
Q: Are you trading company or manufacturer ?
A: manufacturer,also can do trading.
Q: How long is your delivery time?
A: Generally speaking,it is 10-15 days if the goods are in stock,or it is 30-40 days if the goods are not in stock,
it is according to quantity.
Q: Do you provide samples? is it free or extra ?
A: Yes, we could offer the sample for free charge but need pay the cost of freight.
Q: What is your terms of payment ?
A: Payment<=2000USD, 100% in advance. Payment>=2000USD, 30% T/T in advance ,balance before shippment.
If you have another question, pls feel free to contact with me.
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