Laser Welded Carbon Steel Finned Tube
Inconel alloy seamless laser welded 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 400 615) - Tube OD:15.88mm~273mm or customized
Product Details
Inconel alloy seamless laser welded finned tube is a high-performance heat exchange element made of Inconel nickel-based alloy. The fins are bonded to a seamless base tube using a laser welding process. Its core characteristics include:
Material Properties:
Inconel alloy, with nickel as its base and containing elements such as chromium and molybdenum, exhibits excellent corrosion resistance (especially resistance to chloride ion corrosion) and high-temperature stability (operating temperature up to 980℃). Its face-centered cubic structure and solid solution strengthening mechanism ensure mechanical properties under extreme environments.
Common Materials Used
The primary material for these tubes is Inconel 625, chosen for its exceptional combination of properties:
- High-temperature strength
- Excellent corrosion resistance
- Good fatigue properties
- Cryogenic toughness
Other Inconel variants like 600 and 718 may also be used depending on specific application requirements.
Specifications
| Parameter | Standard Range |
|---|---|
| Outer Diameter | 10mm – 100mm |
| Wall Thickness | 0.5mm – 5mm |
| Fin Height | 5mm – 15mm |
| Fin Thickness | 0.3mm – 1.2mm |
| Length | Up to 12 meters |
Custom specifications available for specialized applications.
Inconel Alloy Seamless Laser Welded Finned Tube Manufacturing Process:
Seamless Base Tube: Formed through processes such as forging and rolling to achieve a dense structure, resulting in superior pressure resistance compared to welded tubes.
Laser Welding: A high-energy laser beam is used to fuse the fins to the base tube, resulting in high weld strength, a small heat-affected zone, and suitability for precision machining.
Inconel Alloy Seamless Laser Welded Finned Tube:
Application areas:
Mainly used in petrochemical (reactors, flue gas desulfurization), marine engineering (seawater heat exchangers) and aerospace (engine components) and other scenarios requiring high temperature and strong corrosion resistance.
Quality Inspection Methods
To ensure production quality, comprehensive testing includes:
- Visual Inspection: Surface quality assessment
- Dimensional Verification: Precise measurements of all parameters
- Pressure Testing: Hydrostatic and pneumatic tests
- NDT Methods: Ultrasonic testing, radiography
- Material Analysis: Spectroscopic composition verification
- Microstructural Examination: Metallographic analysis
- Performance Testing: Heat transfer efficiency evaluation
Why Choose Inconel Alloy Seamless Laser Welded Finned Tube?
- Superior Heat Transfer: Enhanced surface area with precision fins
- Exceptional Durability: Inconel’s resistance to oxidation and corrosion
- Long Service Life: Outperforms conventional materials in harsh environments
- Maintenance Reduction: Minimized downtime due to failure
- Energy Efficiency: Optimized heat exchange capabilities
- Reliability: Consistent performance under extreme conditions
- 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 |
Inconel Alloy Seamless Laser Welded Finned Tube Appearance Dimension Inspection
Inconel alloy seamless laser welded 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.
Inconel Alloy Seamless Laser Welded Finned Tube Bending Processing
Bending of fin tubes is an important step in the production process of inconel alloy seamless laser welded finned tube. Bending is to bend the inconel alloy seamless laser welded 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.
Inconel Alloy Seamless Laser Welded Finned Tube Pull Off Test
Inconel alloy seamless laser welded 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 .
