YUHONG HOLDING GROUP CO., LTD
| Payment Terms | TT, LC |
| Supply Ability | According to Clients' requirements |
| Delivery Time | 60 Days (Depend on Customer's Requirements) |
| Packaging Details | Ply-wooden Cases with Steel Frames and Pipe's both ends with plastic caps |
| Product Name | Serrated Finned Tube |
| Base Tube Specification&Material | ASTM A312 TP316L |
| Fin material | SS316L |
| Fin Height | 0.375″ to 1.25″ |
| Fin Segment Width | 5/32″ or 5/16″ |
| Fin Thickness | 20ga (.035″) to 16ga (.060″) |
| Fin Pitch | 1 to 7 fins per inch |
| Base Tube O.D. | 1.00″ to 12.75″ outside diameter |
| Applicatin | Heat exchangers, boilers, condensers; Petrochemical, power plants, refrigeration; Waste heat recovery systems... |
| Brand Name | Yuhong |
| Model Number | ASTM A312 TP316L Helical Spiral Serrated Finned Tube |
| Certification | ABS, BV, DNV, CCS, LR |
| Place of Origin | China |
View Detail Information
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Product Specification
| Payment Terms | TT, LC | Supply Ability | According to Clients' requirements |
| Delivery Time | 60 Days (Depend on Customer's Requirements) | Packaging Details | Ply-wooden Cases with Steel Frames and Pipe's both ends with plastic caps |
| Product Name | Serrated Finned Tube | Base Tube Specification&Material | ASTM A312 TP316L |
| Fin material | SS316L | Fin Height | 0.375″ to 1.25″ |
| Fin Segment Width | 5/32″ or 5/16″ | Fin Thickness | 20ga (.035″) to 16ga (.060″) |
| Fin Pitch | 1 to 7 fins per inch | Base Tube O.D. | 1.00″ to 12.75″ outside diameter |
| Applicatin | Heat exchangers, boilers, condensers; Petrochemical, power plants, refrigeration; Waste heat recovery systems... | Brand Name | Yuhong |
| Model Number | ASTM A312 TP316L Helical Spiral Serrated Finned Tube | Certification | ABS, BV, DNV, CCS, LR |
| Place of Origin | China | ||
| High Light | TP316L Serrated Finned Tube ，ASTM A312 Serrated Finned Tube ，Heat Exchanger Serrated Finned Tube | ||
ASTM A312 TP316L Helical Spiral Serrated Finned Tube With SS316L Fins For Heat Exchanger
ASTM A312 TP316L Helical Spiral Serrated Finned Tube with SS316L Fins is a specialized type of heat exchanger tube designed for enhanced heat transfer efficiency in demanding environments.
Here's a detailed breakdown of its components and features:
1. Base Tube – ASTM A312 TP316L
(1). Chemical Composition of ASTM A312 TP316L (Weight %)
| Element | Minimum | Maximum |
| Carbon (C) | - | 0.03% |
| Manganese (Mn) | - | 2.00% |
| Phosphorus (P) | - | 0.045% |
| Sulfur (S) | - | 0.030% |
| Silicon (Si) | - | 1.00% |
| Chromium (Cr) | 16.0% | 18.0% |
| Nickel (Ni) | 10.0% | 14.0% |
| Molybdenum (Mo) | 2.0% | 3.0% |
| Nitrogen (N) | - | 0.10% |
| Iron (Fe) | Balance | Balance |
Notes:
Low carbon (≤0.03%) prevents carbide precipitation during welding (prevents sensitization).
Molybdenum (2-3%) enhances corrosion resistance, especially against chlorides and acids.
(2). Mechanical Properties of ASTM A312 TP316L
| Property | Value (Seamless & Welded) |
| Tensile Strength (MPa) | ≥485 MPa (70 ksi) |
| Yield Strength (0.2% Offset, MPa) | ≥170 MPa (25 ksi) |
| Elongation (% in 50 mm) | ≥35% (for longitudinal) |
| Hardness (Rockwell B) | ≤95 HRB (Annealed Condition) |
Notes:
Good ductility (≥35% elongation) ensures formability and weldability.
Lower yield strength compared to carbon steel but excellent toughness.
Annealed condition provides optimal corrosion resistance.
(3). Key Takeaways
2. Fins – SS316L (Stainless Steel 316L)
The fins are made of the same material as the base tube (SS316L) for compatibility and corrosion resistance.
Helical Spiral Serrated Design:
Helical Spiral: Fins are wound in a continuous spiral around the tube, increasing surface area for better heat transfer.
Serrated: Fins have notched (serrated) edges, further enhancing turbulence and heat exchange efficiency.
3. Key Features
4. Advantages Over Plain Tubes
Applications of ASTM A312 TP316L Helical Spiral Serrated Finned Tube with SS316L Fins
This specialized finned tube is designed for high-efficiency heat transfer in corrosive and high-temperature environments. Its SS316L material (both tube and fins) ensures excellent resistance to oxidation, chlorides, acids, and thermal stress, making it suitable for demanding industrial applications.
1. Petrochemical & Oil & Gas Industry
Why?
Resists sulfuric acid, chlorides, and sour gas (H₂S) corrosion.
Handles high-pressure steam and hydrocarbons.
2. Power Generation (Thermal & Nuclear Plants)
Why?
High thermal conductivity with serrated fins improves efficiency.
Resists scaling and oxidation at high temperatures.
3. Chemical & Pharmaceutical Processing
Why?
SS316L’s Mo content (2-3%) resists pitting from aggressive chemicals.
Low carbon prevents carbide precipitation during welding.
4. Marine & Desalination Systems
Why?
Excellent chloride resistance (prevents pitting/crevice corrosion).
Helical spiral fins reduce fouling from salt deposits.
5. Food & Beverage Industry
Why?
Sanitary SS316L surface (easy to clean, non-reactive).
Corrosion-resistant against acidic/alkaline food products.
6. HVAC & Refrigeration
Why?
Serrated fins enhance turbulence, improving heat transfer.
Resists Freon, ammonia, and brine corrosion.
7. Waste Incineration & Exhaust Gas Treatment
Why?
Withstands acidic exhaust gases (SOx, NOx, HCl).
High-temperature durability (up to ~900°C with proper grade).
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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