Product Specification

TP304H Stainless Steel Serrated Finned Tube HFW (High-Frequency Welding)

Overview

TP304H stainless steel serrated finned tube is a type of heat exchanger tube that combines the properties of TP304H stainless steel with serrated fins for superior heat transfer performance, especially in high-temperature environments. Let's dive deeper into the details of the material, design, and typical applications.

Serrated Fins:

• Serrated fins on a TP304H stainless steel finned tube are designed to increase the surface area available for heat transfer. The serrated (or saw-tooth) design enhances the heat exchange efficiency by creating turbulence in the fluid flowing around the tube, disrupting the thermal boundary layer and increasing the contact between the fluid and the tube surface.
• This design improves the overall heat transfer rate, especially in systems where the surrounding fluid is at a much lower temperature than the fluid inside the tube.
• Turbulence Generation: The serrations (zigzag pattern) cause fluid to swirl around the fins, which disrupts laminar flow and promotes turbulent flow, improving convective heat transfer.

Base Tube:

• The base tube is made of TP304H stainless steel, ensuring that the tube itself can handle high-pressure and high-temperature conditions without degradation.The tube can be smooth or internally finned, depending on the specific application. It carries the fluid that needs to transfer heat, typically in a heat exchanger or boiler system.

Advantages of HFW Serrated Finned Tubes:

• Efficient Heat Transfer:

The serrated fin design creates turbulence, which enhances the heat transfer process by increasing fluid mixing and disrupting the thermal boundary layer.

• Cost-Effective Manufacturing:

High-Frequency Welding is a rapid and efficient method for attaching fins to the base tube, reducing manufacturing costs compared to other methods like brazing or mechanical bonding.

• Durability:

These tubes, especially when made from stainless steel, offer excellent resistance to corrosion, making them suitable for harsh environments like chemical plants or marine applications.

• Compact Design:

Finned tubes with serrated fins provide a high heat transfer rate in a compact design, which is particularly valuable in systems with limited space.

• Customization:

HFW serrated finned tubes can be customized to suit specific thermal and mechanical requirements, including tube diameter, fin height, fin pitch, and material choice.

Difference bewteen Serrated fin tube and HFW fin tube

The serrated spiral finned tube is a type of irregular extended surface developed on the basis of the spiral finned tube. Its manufacturing process is similar to that of high-frequency welded spiral finned tubes, but the difference is that before winding the serrated finned tube, the strip must be locally cut with gaps. The cut part during winding naturally separates, forming a gear shape. The tooth opening on high-frequency welded spiral fins not only simplifies the winding process (greatly reduces deformation), but also has advantages such as tight binding, high strength, heat resistance to shock and mechanical vibration, good thermal expansion performance, small flow loss, strong corrosion resistance, and considerable diffusion surface. It is not easy to deform under long-term cold and hot working conditions, and has a long working life. It also strengthens heat transfer due to its damage to the flow boundary layer.

Chemistry Composition of SS304H

Mechanical Properties of SS304H

Applications of HFW Serrated Finned Tubes:

• Heat Exchangers

• Air Coolers

• Boilers

• Automotive Applications

• Power Plants

• Marine Applications

• Chemical Processing