Helical Solid Finned Tubes with High Frequency Welding HFW ASTM A335 P9 Studded Tube

ASTM A335 P9 P11 Carbon Steel Tube HFW Studded Finned Tube For Heat Exchanger Black Painted

TONG CHUANG Group has been a leading supplier of stainless steel， duplex， and nickel for over 10 years. With an annual sales volume exceeding 80，000 tons， we have successfully served clients in more than 45 countries. Our Stainless Steels are highly versatile， finding applications in various industries such as mining， energy， petrochemicals， chemicals， food mills， paper mills， gas， and fluid industries. We offer a wide range of sizes and specifications， complying with ANSI B16.10: B16.19 standards including SCH 5S， SCH 10S， SCH 20， SCH 30， SCH 40S， SCH 60， SCH80S， XS， SCH 100， SCH 120， SCH160， and XXS.

HFW Solid Finned Tube， also known as high frequency welded helical solid finned tube， is a type of spiral finned tube that offers high thermal efficiency and a compact design solution for various heat exchangers utilizing clean flue gas. The two types of spiral finned tubes are solid type and serrated type.

Helical solid finned tubes are manufactured by helically wrapping a continuous strip of fins around the tube and welding it continuously using high frequency resistance welding at a frequency of 400 kHz. This ensures a strong contact between the fin tape and the surface of the base tube. The welding process takes place at the root of the helix， where the fin strip bends around the diameter of the tube.

To determine the required heat transfer surface area per unit length of tube， specifications such as fin height， fin thickness， and/or number of fins per meter of length need to be provided for a given tube or pipe size.

The HFW Solid Finned Tube configuration is suitable for various heat exchanger applications， particularly those involving high temperatures and high pressures. It offers efficient and reliable bonding between the fin and the tube， allowing it to withstand high temperatures on the fin side under all temperature and pressure conditions.

Technical details of the base tube include a pipe diameter range of 20mm to 219mm， tube thickness ranging from 2mm to 16mm， and materials such as carbon steel， stainless steel， alloy steel， weathering steel， duplex steel， super duplex steel， inconel， high chromium high nickel and chromium alloys， CK 20 material， and others.

Regarding the fin details， the fin thickness ranges from 0.8mm to 4mm， fin height ranges from 0.25" (6.35mm) to 1.5" (38mm)， and fin density ranges from 43 fins per meter to 287 fins per meter. The materials used for fins are carbon steel， stainless steel， alloy steel， weathering steel， duplex steel， and incolloy.

To receive a rapid quotation， please provide the following information: number of pieces， base tube specifications including diameter， thickness， length， and material; fin specifications including material， type (solid or serrated)， height， thickness， spacing， finned length， and unfinned sections; and any required weld prep details. Additionally， specify the desired delivery period.

Introduction:

Helical Solid Finned Tubes with High Frequency Welding (HFW) ASTM A335 P9 Studded Tube are high-quality， durable and versatile products designed for various industrial applications. The tubes are characterized by their exceptional material properties， making them suitable for a wide range of challenging environments and demanding conditions.



产品特点

1. Material: The Helical Solid Finned Tubes are made from ASTM A335 P9 material， which is a high-grade alloy steel known for its excellent mechanical properties， resistance to corrosion， and high temperature resistance. The use of this material ensures the tubes' durability and performance under extreme operating conditions.



2. High Frequency Welding (HFW): The tubes employ high frequency welding techniques， which provide superior bond strength， weld integrity， and consistency. This welding process ensures a seamless connection between the finned and base tube， enhancing the overall performance and reliability of the tubes.



3. Studded Tube Design: The studded tube design facilitates improved heat transfer efficiency. The studs present on the outer surface of the tubes increase the overall heat transfer area and promote enhanced thermal conductivity. This design feature allows for efficient heat exchange， making the tubes suitable for applications where precise temperature control is required.



应用：

Helical Solid Finned Tubes with High Frequency Welding (HFW) ASTM A335 P9 Studded Tube find applications in a wide range of industries and processes， including but not limited to:



1. Petrochemical Industry: The tubes are commonly used in heat exchangers， boilers， and condensers for efficient heat transfer in oil refineries， chemical plants， and petrochemical complexes.



2. Power Generation: These tubes play a significant role in power plants， aiding in the efficient transfer of heat in boilers， superheaters， and heat recovery steam generators (HRSGs).



3. Process Industry: The tubes are widely used in various process industries such as food processing， pharmaceuticals， and pulp and paper， where temperature control and heat transfer are critical.



Table:

The table provides a comparison of key characteristics between Helical Solid Finned Tubes with High Frequency Welding (HFW) ASTM A335 P9 Studded Tube and conventional finned tubes.

Keywords: Fin tubes， Finned tube， Finned Pipe， Helical Finned Tubes