YUHONG HOLDING GROUP CO., LTD
| Payment Terms | TT, LC |
| Supply Ability | 10000 tons/month |
| Delivery Time | According to the quantity |
| Packaging Details | IRON FRAME CASE WITH PLASTIC CAP |
| Base Tube Material | Carbon Steel, SA179, SA192, A106 |
| Length | Max 25M/PC |
| Fin Wall thickness | ~0.3mm |
| Fin pitch | 19-26-27-28-30-36 fins per inch |
| Fin height | ＜1.4mm |
| Brand Name | Yuhong |
| Place of Origin | China |
| Certification | ABS, BV, DNV, CCS, LR |
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Product Specification
| Payment Terms | TT, LC | Supply Ability | 10000 tons/month |
| Delivery Time | According to the quantity | Packaging Details | IRON FRAME CASE WITH PLASTIC CAP |
| Base Tube Material | Carbon Steel, SA179, SA192, A106 | Length | Max 25M/PC |
| Fin Wall thickness | ~0.3mm | Fin pitch | 19-26-27-28-30-36 fins per inch |
| Fin height | ＜1.4mm | Brand Name | Yuhong |
| Place of Origin | China | Certification | ABS, BV, DNV, CCS, LR |
| High Light | Oil Coolers Low Fin Tube ，Condensers Low Fin Tube ，Carbon Steel Low Fin Tube | ||
Carbon Steel Low Fin Tube
Low fin tubes (also called integral fin tubes) are used in heat exchangers, boilers, and condensers to enhance heat transfer efficiency. Their strength depends on material properties, fin geometry, and manufacturing processes. Below is a detailed breakdown of carbon steel low fin tube strength.
1. Material Strength of Carbon Steel
Carbon steel low fin tubes are typically made from ASTM A179, A192, or A210 grades. Their mechanical properties include:
| Property | ASTM A179 | ASTM A192 | ASTM A210 |
| Tensile Strength | ≥325 MPa | ≥325 MPa | ≥415 MPa |
| Yield Strength | ≥180 MPa | ≥180 MPa | ≥255 MPa |
| Elongation (%) | ≥35% | ≥35% | ≥30% |
| Hardness (HB) | ≤72 HRB | ≤77 HRB | ≤79 HRB |
2. Fin Geometry & Its Impact on Strength Low fin tubes have helical fins extruded from the base tube, which affects structural integrity:
| Parameter | Typical Range | Effect on Strength |
| Fin Height | 0.8–1.5 mm | ↑ Height → ↓ Burst Pressure |
| Fin Pitch | 19–40 fins/inch | Denser fins → Slightly weaker |
| Base Wall Thickness | 1.2–3.0 mm | Thicker → Higher pressure rating |
| Property | Low Fin Tube | Smooth Tube |
| Tensile Strength | Similar | Similar |
| Burst Pressure | ~70–80% of smooth | 100% (reference) |
| Fatigue Resistance | Slightly lower | Higher |
| Corrosion Resistance | Similar (but fins trap deposits) | Better for clean fluids |
4. Applications & Limitations
✔ Heat Exchangers (oil coolers, condensers)
✔ Boiler Economizers (improved heat transfer)
✔ Low-Pressure Steam Systems
✖ High-Pressure Steam (>1000 psi)
✖ Highly Corrosive Fluids (fins trap deposits)
✖ High-Vibration Environments (risk of fin fatigue)
5. Conclusion
Strength ≈ 70–90% of smooth tubes (depends on fin design).
Best for heat transfer efficiency, not extreme pressure.
Material choice (A179/A192/A210) affects performance.
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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