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Welcome to Anping County Boli Hardware Wiremesh Products Factory – your trusted partner in high-performance heat transfer solutions. Since 1998, we have been manufacturing premium quality finned tubes for demanding industrial applications. Our 316L Stainless Steel Spiral Finned Tube is specifically engineered for corrosive environments, offering exceptional resistance to acids, chlorides, and other aggressive media. With an annual export value exceeding US$5 million and a global presence across North America, Europe, Asia, and beyond, we provide reliable products backed by decades of expertise.
This spiral finned tube is designed to maximize heat transfer efficiency while maintaining structural integrity in harsh conditions. The 316L grade stainless steel ensures low carbon content, minimizing carbide precipitation during welding and providing superior corrosion resistance in chloride-laden environments. The spiral fin geometry significantly increases the surface area, enhancing heat exchange performance without compromising durability.
Key Features & Technical Specifications
- Superior Corrosion Resistance: 316L stainless steel offers excellent resistance to pitting, crevice corrosion, and stress corrosion cracking in acidic and chloride-rich environments.
- Optimized Heat Transfer: The spiral fin design provides up to 2-3 times more heat transfer area compared to plain tubes, improving thermal efficiency.
- High Mechanical Strength: Suitable for high-pressure applications with customizable wall thickness and tube dimensions.
- Customizable Dimensions: Tube outer diameter, fin height, fin pitch, and length can be tailored to specific project requirements (available upon request).
- Excellent Weldability: Low carbon content (max 0.03%) reduces the risk of intergranular corrosion after welding.
- Long Service Life: Resistant to oxidation and scaling at elevated temperatures, making it ideal for continuous operation.
- Versatile Applications: Used in heat exchangers, condensers, evaporators, and waste heat recovery systems in chemical, petrochemical, marine, oil & gas, and power generation industries.
| Parameter | Typical Range |
|---|---|
| Material Grade | 316L Stainless Steel (UNS S31603) |
| Tube Outer Diameter | 16 mm – 50 mm (customizable) |
| Fin Height | 8 mm – 20 mm |
| Fin Pitch | 4 mm – 10 mm |
| Tube Length | Up to 12 meters (single piece) |
| Fin Thickness | 0.5 mm – 2.0 mm |
| Operating Temperature | Up to 800°C (depending on environment) |
| Surface Finish | Pickled, passivated, or polished |
Advantages for Your Business
Our 316L stainless steel spiral finned tubes deliver tangible benefits to your operations:
- Reduced Maintenance: The corrosion-resistant material minimizes downtime and replacement costs in aggressive environments.
- Energy Savings: Enhanced heat transfer efficiency lowers energy consumption and operational costs.
- Compact Design: Higher surface area allows for smaller heat exchanger footprints, saving space and material costs.
- Reliable Performance: Stringent quality control ensures consistent fin-tube bonding and dimensional accuracy.
- Global Logistics: Flexible shipping from multiple ports (Tianjin, Qingdao, Shanghai, Foshan) ensures timely delivery worldwide.
Frequently Asked Questions
Q1: What makes 316L stainless steel better than 304 for corrosive environments?
A1: 316L contains molybdenum (2-3%), which significantly improves resistance to chlorides and acids. It also has a lower carbon content, reducing the risk of intergranular corrosion after welding, making it ideal for harsh environments like chemical plants and marine applications.
Q2: Can you produce custom fin dimensions?
A2: Yes, we offer full customization of tube diameter, fin height, fin pitch, and length. Please provide your specific requirements, and our engineering team will offer a tailored solution.
Q3: What is the typical lead time for orders?
A3: For standard specifications, lead time is approximately 15-25 days after order confirmation. Custom orders may take 20-35 days depending on complexity and quantity. Contact us for exact delivery schedules.
Q4: How do you ensure the quality of the fin-tube bond?
A4: We use advanced spiral fin winding machines with precise tension control. Each tube undergoes a peel test and dimensional inspection to verify bonding strength and consistency. We also perform hydrostatic testing if required.
Q5: Do you provide samples for testing?
A5: Yes, sample orders are welcome. We can produce small prototypes to validate performance in your specific application. Please contact our sales team to discuss sample requirements.
Q6: What packaging do you use for export?
A6: Tubes are packed in bundles with protective end caps, wrapped in waterproof fabric, and secured in wooden crates or steel frames to prevent damage during transit. Packaging can be customized per your requirements.
Q7: Is this product suitable for seawater cooling systems?
A7: Absolutely. 316L stainless steel is widely used in seawater heat exchangers due to its excellent resistance to chloride-induced pitting and crevice corrosion. However, for extremely high chloride concentrations, we recommend consulting with our technical team for additional protection measures.
Q8: What is your minimum order quantity (MOQ)?
A8: MOQ varies by specification. Typically, for standard sizes, MOQ is 50 pieces. For custom designs, please inquire directly. We are flexible and aim to accommodate both small and large orders.
Why Choose Anping County Boli Hardware Wiremesh Products Factory?
With over 25 years of manufacturing experience, we have built a reputation for quality and reliability. Our annual export value of US$5-10 million indicates strong trust from international clients across diverse markets. We ship from multiple Chinese ports (Tianjin, Qingdao, Shanghai, Foshan) to ensure efficient logistics. Our dedicated quality control team monitors every production batch, and we offer responsive after-sales support. Choose our 316L stainless steel spiral finned tube for a durable, efficient, and cost-effective solution that withstands the toughest corrosive environments. Contact us today to discuss your project requirements or request a quotation.
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