Laser Welded Carbon Steel Finned Tube
Laser welded carbon steel finned tubes are industrial heat exchange elements manufactured using high-precision laser welding technology. The base tube and fins achieve zero contact thermal resistance through metallurgical bonding, resulting in advantages such as high-efficiency heat transfer, compact structure, and strong corrosion resistance.
- 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
Product Details
Laser-Welded Carbon Steel Finned Tubes are introduced in terms of core characteristics, technological advantages, and application areas:
Core Characteristics of Laser-Welded Carbon Steel Finned Tubes
High-Efficiency Heat Transfer: Laser welding creates a metallurgical bond between the base tube and fins, resulting in near-zero contact thermal resistance and heat transfer efficiency more than twice that of traditional high-frequency welding processes.
Material Savings: The base tube thickness can be as thin as 0.8-1.5 mm, and the fin thickness is 0.3-1 mm, significantly reducing material costs.
Corrosion Resistance: The weld penetration rate can reach 100%, effectively preventing crevice corrosion and extending service life.
Advantages of Laser Welded Carbon Steel Finned Tube Technology
High-Precision Welding: The laser beam focusing diameter reaches the micrometer level, and the weld width can be controlled to below 0.1 mm, resulting in a minimal heat-affected zone, suitable for connecting thin-walled tubes with precision fins.
Wide Material Adaptability: Supports combinations of various materials such as carbon steel, stainless steel, and copper, and forms dense welds without the need for filler material.
Flexible Secondary Processing: Allows for direct secondary processing such as coiling and bending, adapting to complex installation environments.
Applications of Laser Welded Carbon Steel Finned Tubes:
Industrial Applications: Widely used in boiler economizers, waste heat recovery devices, petrochemical heat exchangers, etc., capable of withstanding high temperatures, high pressures, and harsh operating conditions.
Civilian Applications:Used in wall-hung boilers, radiators, etc., meeting national energy conservation and emission reduction standards, resulting in more compact heat exchangers.
Laser-welded carbon steel finned tubes have solved problems such as incomplete root penetration and wrinkles in traditional high-frequency welding processes through technological innovation, making them a highly efficient and energy-saving option in the field of industrial heat exchange.
- Datasheet
- Drawing
- Certificates
| Parameter | Specification |
|---|---|
| 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 |
Laser Welded Carbon Steel Finned Tube Appearance Dimension Inspection
Laser welded carbon steel 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.
Laser welded carbon steel finned tube Bending Processing
Bending of fin tubes is an important step in the production process of laser welded fin tube coils. Bending is to bend the laser welded carbon steel finned 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.
Laser welded carbon steel finned tube Pull Off Test
Laser welded carbon steel 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 finned tube coils 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 .
