Recently, Datang successfully manufactured and delivered a batch of high-precision stainless steel longitudinal finned tubes for a well-known Israeli petrochemical company. These heat exchange tubes are specifically designed for highly corrosive heat exchange environments. To avoid excessively long downtime maintenance, the client requested that we transport them to Israel by air in the shortest possible time.
High-precision customized longitudinal finned tubes, with the following parameters:
- Base tube material: AISI 316L stainless steel seamless tube
- Outer diameter: 19.05mm
- Wall thickness: 2mm
- Fin height: 16mm
- Fin thickness: 1mm
- Total base tube length: 500mm
- Fin length: 440mm
Why Choose AISI 316L Stainless Steel Seamless Steel Pipe?
In the petrochemical industry, chloride stress corrosion cracking remains a persistent threat. We selected high-quality AISI 316L seamless pipe as our base material. This seamless structure ensures extremely high pressure resistance, while the low-carbon 316L alloy offers excellent resistance to pitting and crevice corrosion.
Why choose longitudinal fin welding?
The use of longitudinal fins maximizes the heat exchange area and adapts to specific fluid flow patterns.
Understanding the client’s urgent timeline, we completed the entire process—from raw material sourcing to fin customization and fabrication—in just 15 days for delivery to the client. This rapid turnaround effectively prevented the client from suffering substantial losses due to prolonged plant downtime.
Strict Quality Control (QC)
Of course, we didn’t neglect quality due to tight deadlines. Before packaging, each tube underwent rigorous quality inspection:
- Dimensional and Tolerance Check: Confirming the heatsink height was 16 mm, thickness 1 mm, and the correct arrangement of all parts.
- Non-Destructive Testing (NDT): Ensuring the integrity of welds and the reliability of the tubing.
- Surface Cleaning: Acid pickling and passivation were performed to restore the corrosion-resistant chromium oxide layer on the AISI 316L stainless steel.
Professional Packaging
- Each longitudinally finned tube is wrapped to prevent friction between the fins.
- Sturdy wooden packaging: The tubes are carefully packed into robust wooden crates that meet ISPM 15 standards and have undergone IPPC fumigation treatment, with soft cushioning material inside to protect the contents.
Client Feedback
The shipment arrived safely and on time at the Israeli airport. The client’s engineering team inspected the goods and expressed high satisfaction with the welding quality, dimensional accuracy, and our excellent coordination in the urgent air freight logistics.
Looking for high-performance longitudinal finned tubes for your next heat exchanger project? Contact us today for a quick quote and technical consultation.
