Yuhong Group Co.,Ltd
| Payment Terms | T/T,L/C |
| Supply Ability | 1000 Tons/Month |
| Delivery Time | Depends On Quantity |
| Packaging Details | Wooden Cases |
| Standard | ASTM A179, GB/T 1527-2006, JIS G3463 |
| Material Grade | 10#、20# Low-Carbon Steel (Mainly), Customizable according to requirements |
| Product Type | L-type Fin Seamless Tube (Smls), Straight Type; U-bend optional |
| Pressure Class | Class 150, 300; ≤10MPa (Working Pressure), Customizable |
| Size Range | Base Tube OD: 19-114mm, Wall Thickness: 1.5-5mm; Fin Height: 6-20mm, Fin Pitch: 2-5mm; Length: 1-12m, Customizable |
| Surface Treatment | Galvanizing, Pickling & Passivated, Anti-rust Coating, Natural Oxide Film |
| Brand Name | YUHONG |
| Model Number | ASTM A179 |
| Certification | ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008 |
| Place of Origin | CHINA |
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Product Specification
| Payment Terms | T/T,L/C | Supply Ability | 1000 Tons/Month |
| Delivery Time | Depends On Quantity | Packaging Details | Wooden Cases |
| Standard | ASTM A179, GB/T 1527-2006, JIS G3463 | Material Grade | 10#、20# Low-Carbon Steel (Mainly), Customizable according to requirements |
| Product Type | L-type Fin Seamless Tube (Smls), Straight Type; U-bend optional | Pressure Class | Class 150, 300; ≤10MPa (Working Pressure), Customizable |
| Size Range | Base Tube OD: 19-114mm, Wall Thickness: 1.5-5mm; Fin Height: 6-20mm, Fin Pitch: 2-5mm; Length: 1-12m, Customizable | Surface Treatment | Galvanizing, Pickling & Passivated, Anti-rust Coating, Natural Oxide Film |
| Brand Name | YUHONG | Model Number | ASTM A179 |
| Certification | ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008 | Place of Origin | CHINA |
| High Light | ASTM A179 seamless fin tube ，L-type heat exchange steel tube ，low-carbon steel finned tube | ||
A179 L-type FIN Smls Tube is a high-efficiency heat exchange seamless steel tube, strictly manufactured in accordance with ASTM A179 standard (Standard Specification for Seamless Cold-Drawn Low-Carbon Steel Heat-Exchange Tubes). It integrates the structural advantages of seamless tubes and the enhanced heat transfer performance of L-type fins, mainly made of low-carbon steel materials with excellent ductility, weldability and thermal conductivity. The L-type fin structure is integrally formed with the seamless base tube, which not only avoids the hidden dangers of fin falling off caused by welding but also greatly increases the heat exchange area, improves heat transfer efficiency by 30%-50% compared with ordinary seamless tubes, and reduces energy consumption[1]. As a key component in heat exchange systems, this product has no welding seams in the base tube, ensuring high pressure resistance and structural stability, and can adapt to medium and low temperature and pressure working environments. It is widely used in thermal power, petrochemical, refrigeration, HVAC and other fields that require efficient heat exchange.
| Material Grade | C (Carbon) | Si (Silicon) | Mn (Manganese) | P (Phosphorus) ≤ | S (Sulfur) ≤ | Fe (Iron) ≥ |
|---|---|---|---|---|---|---|
| 10# Low-Carbon Steel (ASTM A179) | 0.07-0.14 | 0.17-0.37 | 0.35-0.65 | 0.035 | 0.035 | 99.0 |
| 20# Low-Carbon Steel (ASTM A179) | 0.17-0.24 | 0.17-0.37 | 0.35-0.65 | 0.035 | 0.035 | 98.8 |
| Mechanical Property | 10# Steel (Annealed) | 20# Steel (Annealed) | ASTM A179 Requirement |
|---|---|---|---|
| Yield Strength (Rp0.2), MPa | ≥205 | ≥245 | ≥200 |
| Tensile Strength (Rm), MPa | 335-475 | 410-550 | ≥330 |
| Elongation (A), % | ≥28 | ≥25 | ≥25 |
| Hardness (HB), Brinell | ≤137 | ≤156 | ≤160 |
| Reduction of Area, % | ≥55 | ≥50 | ≥45 |
| Fin Bond Strength, MPa | ≥200 | ≥200 | ≥180 |
| Test Type | Standard |
|---|---|
| Chemical Composition Analysis (PMI) | Spectrometer (XRF/OES), ASTM E1019, ASTM A179 |
| Tensile & Impact Test | ASTM E8/E8M, ASTM A370, Charpy V-Notch |
| Hardness Test | ASTM E10 (Brinell), ASTM E18 (Rockwell), Vickers |
| Fin Bond Strength Test | Pull-off Test, Bending Test, Hammer Test[1] |
| Corrosion Resistance Test | ASTM B117 (Salt Spray), Neutral Salt Spray Test |
| Non-Destructive Testing (NDT) | Eddy Current Test, UT (Ultrasonic), MT (Magnetic Particle), PT (Liquid Penetrant) |
| Hydrostatic/Pneumatic Pressure Test | ASTM A179, Pressure Test for Seamless Pipes |
| Dimensional & Visual Inspection | ASTM A179, CMM, Gauge Inspection, Fin Size Tolerance Test[1] |
| Material Test Certificate (MTC) | EN 10204 3.1/3.2, ASTM A179 |
| Flattening & Flaring Test | ASTM A179 (Standard for Low-Carbon Steel Heat-Exchange Tubes) |
| Industry Field | Typical Applications |
|---|---|
| Thermal Power Industry | Power plant condensers, heat exchangers, boiler economizers, air preheaters, cooling water pipelines |
| Petrochemical Industry | Petroleum refining heat exchangers, chemical reaction kettle heat transfer tubes, hydrocarbon processing equipment pipelines |
| Refrigeration & Air Conditioning | Air conditioner evaporators, condensers, refrigeration unit heat exchange tubes, central air conditioning heat exchange systems |
| HVAC Industry | Building central heating heat exchangers, ventilation system heat transfer tubes, domestic water heaters |
| Light Industry & Food Processing | Food sterilization equipment heat exchange tubes, beverage processing cooling tubes, textile printing and dyeing heat exchangers |
| Other Fields | Automobile radiators, industrial waste heat recovery equipment, low-temperature storage equipment heat exchange tubes |
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Importer,Exporter,Trading Company,Seller,Other
Year Established:
2007
Total Annual:
50M-70M
Employee Number:
50~850
Ecer Certification：
Verified Supplier
Yuhong Group is one of the large scale group company in China, more than 35 years experience in the international market, providing high-quality services to over 3000 customers, end user which like Aramco, Petrobras, Pemex, Petronas, Ecopetro, Petroecuador, …. till now Yuhong Grou... Yuhong Group is one of the large scale group company in China, more than 35 years experience in the international market, providing high-quality services to over 3000 customers, end user which like Aramco, Petrobras, Pemex, Petronas, Ecopetro, Petroecuador, …. till now Yuhong Grou...
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