YUHONG HOLDING GROUP CO., LTD
| Application | Heat Exchanger, boiler |
| Payment Terms | L/C, T/T |
| Supply Ability | 1000 ton/month |
| Delivery Time | 7-45DAYS |
| Packaging Details | Ply-wooden Case /Iron Case/ Bundle with Plastic Cap |
| Fin Tube Type | Low Fin Tubes, Integral Fin Tubes |
| Specification | ASME A334 |
| Fin Thickness | 0.3 mm |
| Tube Type | Seamless |
| FPI | 19-27 |
| Material | GR.1 |
| NDT | HT, ECT |
| Brand Name | YUHONG |
| Model Number | ASTM A334 GR.1 |
| Certification | DNV, BV, PED, LR, ABS, TS, CCS |
| Place of Origin | China |
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ASME SA333 Grade 1 High Efficiency Heat Exchanger Low Fin Tube
Product Specification
| Application | Heat Exchanger, boiler | Payment Terms | L/C, T/T |
| Supply Ability | 1000 ton/month | Delivery Time | 7-45DAYS |
| Packaging Details | Ply-wooden Case /Iron Case/ Bundle with Plastic Cap | Fin Tube Type | Low Fin Tubes, Integral Fin Tubes |
| Specification | ASME A334 | Fin Thickness | 0.3 mm |
| Tube Type | Seamless | FPI | 19-27 |
| Material | GR.1 | NDT | HT, ECT |
| Brand Name | YUHONG | Model Number | ASTM A334 GR.1 |
| Certification | DNV, BV, PED, LR, ABS, TS, CCS | Place of Origin | China |
| High Light | ASTM A334 Gr.1 alloy steel low fin tube ，integral low fin tube for heat transfer ，alloy steel enhanced heat transfer tube | ||
ASTM A334 Gr.1 Alloy Steel Integral Low Fin Tube for Enhanced Heat Transfer
Description:
Integral low fin tubes are produced by cold rolling the outer surface of a seamless tube to form uniform fins directly from the base material. Since the fins are an integral part of the tube wall (not added separately), this structure ensures excellent thermal conductivity, mechanical strength, and resistance to fin detachment.
ASTM A334 Grade 1 alloy steel integral fin tubes are designed for efficient heat transfer in low-temperature and moderate-pressure applications, such as air coolers, condensers, and heat exchangers used in petrochemical and power industries.
Materials:
Base Tube: Alloy Steel ASTM A334 Grade 1 (Seamless)
Key Advantages:
Fins are integral with tube wall — no risk of detachment
Excellent thermal contact and heat transfer performance
Good mechanical strength and pressure resistance
Suitable for low-temperature applications
Long service life and easy maintenance
Chemical Composition of ASTM A334 Grade 1
| Element | C | Mn | P | S | Si |
|---|---|---|---|---|---|
| Composition (%) | ≤0.30 | 0.40–1.06 | ≤0.025 | ≤0.025 | ≤0.10 |
Mechanical Properties of ASTM A334 Grade 1
| Value / Property | Tensile Strength | Yield Strength | Elongation |
|---|---|---|---|
| Unit | MPa | MPa | % |
| Requirement | ≥ 415 | ≥ 240 | ≥ 30 |
Comparison Between ASTM A179 and ASTM A334 Gr.1 Low Fin Tubes
| Feature / Type | A179 Low Fin Tube | A334 Gr.1 Low Fin Tube |
|---|---|---|
| Material | Carbon Steel | Alloy Steel |
| Tensile Strength (MPa) | ≥ 325 | ≥ 415 |
| Temperature Range | Normal to moderate temperature | Low temperature service |
| Corrosion Resistance | Standard | Better |
| Thermal Conductivity | Higher | Slightly lower |
| Typical Use | Air coolers, condensers | Low-temperature heat exchangers |
Applications:
Air Cooled Heat Exchangers
Condensers
Low-temperature Heat Exchangers
Petrochemical and Power Generation Equipment
Company Details
Business Type:
Manufacturer,Importer,Exporter,Trading Company,Seller,Other
Year Established:
1990
Total Annual:
50M-70M
Employee Number:
50~800
Ecer Certification：
Verified Supplier
Yuhong Holding Group has more than 35 years experience for pipeline products, till now we have 3 big joint venture factories, the total production area more than 130000 square meters, and more than 600 workers with 106 production lines give our clients excellent supporting always. &n... Yuhong Holding Group has more than 35 years experience for pipeline products, till now we have 3 big joint venture factories, the total production area more than 130000 square meters, and more than 600 workers with 106 production lines give our clients excellent supporting always. &n...
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