A335 WP11 Serrated Finned Tube
A335 WP11 serrated finned tube is a serrated finned tube made of A335 WP11 alloy steel, possessing excellent high-temperature and corrosion resistance, suitable for high-temperature and high-pressure heat exchange environments.
Base Tube: A335
Fin Type: Serrated
Fin Material: WP11
- Base Tube Material:
CS (A106, A333, A179, A210, P5, P11, P22)
SS (SS304, SS316, Duplex SS2205, Super Duplex SS32750)
Nickel Alloys (825, Inconel Alloy 625, High chrome high nickle incoloy alloy Monel 400) - Tube OD:15.88mm~273mm or customized
I. Characteristics of A335 WP11 Serrated Finned Tube
Material: A335 WP11 alloy steel, containing chromium and molybdenum, resistant to high temperatures and corrosion.
Structure: Serrated fins, increasing heat exchange area and improving thermal efficiency.
Process: Laser welding or high-frequency welding ensures a strong bond between the fins and the tube body.
II. Application Scenarios of Serrated Finned Tube
Industrial field: Used in air coolers, heat recovery systems, boilers, and drying equipment.
Energy industry: Suitable for power plants, refineries, and other high-temperature and high-pressure environments.
III. Technical Advantages of Serrated Finned Tube
Efficient heat exchange: Serrated fins significantly increase the heat exchange area.
Corrosion resistance: A335 WP11 alloy steel remains stable under high temperature and high pressure.
Welding process: Laser welding reduces the heat-affected zone and improves durability.
IV. Supplier Information
Cangzhou Datang Steel Pipe Co., Ltd.: Provides A335 WP11 serrated finned tubes, with 20 years of industry experience, supporting customized production.
- Datasheet
- Drawing
- Certificates
| Parameter | Serrated Finned Tube Specifications |
|---|---|
| Base Tube Material | CS (A106, A333, A179, A210, P5, P11, P22), SS (SS304, SS316, Duplex SS2205, Super Duplex SS32750), Nickel Alloys (825, Inconel Alloy 625, High chrome high nickel incoloy alloy Monel 400) |
| Tube OD | 15.88 mm ~ 273 mm or customized |
| Tube Wall Thick | 2 mm ~ 28.6 mm |
| Length | 1 Meters to 28 Meters (92 feet) |
| Fin Material | CS (08F, SPCC), SS (SS304, SS316, 409, 410, 321, 347) |
| Fin Height | 8 mm ~ 35 mm |
| Fin Thick | 1 mm ~ 1.5 mm |
| Fin Pitch | 3 ~ 333 FPM (1 FPI ~ 7 FPI) |
| Fin Type | Solid, U Type, S Type, Serrated |
| Finned tube welding rate | more than 98% |
| Tube Ends | Plain cut or beveled at any degree |


Serrated Finned Tube Appearance Dimension Inspection
Seamless Serrated Finned Tube appearance dimension inspection is one of the important links to ensure the quality and performance of fin tubes.
The inspection items mainly include fin height, fin spacing, fin thickness, base tube wall thickness and outer diameter, etc.
Datang Serrated Finned Tube Bending Processing
Bending of fin tubes is an important step in the production process of seamless serrated fin tubes. Bending is to bend the serrated fin tube material through specific mechanical equipment to form a suitable curvature to meet different usage requirements.
This step requires strict control of the bending angle and curvature to ensure the fit between the fin and the base tube and the heat dissipation effect.
Serrated Finned Tube Pull Off Test
Seamless serrated finned tube pull-off test is a test used to detect whether the fin tube will fall off when subjected to tension, mainly used to ensure the quality and reliability of the fin tube.
Datang’s this test is very important in the production process because the serrated finned tubes will be subjected to various stresses during operation, such as temperature changes and pipe expansion, which may cause the fin to fall off, thereby affecting the performance and safety of the heat exchanger .

















