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{"title":"A335 P22 HFW Fin Tube for Waste Heat Recovery | Corrosion Resistant 11-13Cr Fin","imgUrl":"https:\/\/img.chinax.com\/nimg\/cf\/f0\/99b49ab33f70e623f06ed43f4dab-200x200-1\/a335_p22_hfw_fin_tube_for_waste_heat_recovery_7c_corrosion_resistant_11_13cr_fin.jpg","attrs":{"Brand Name":"YUHONG","Model Number":"HFW FIN TUBE","Certification":"ISO9001:2015; ISO14001:2015; ISO45001:2018; PED 2014\/68\/EU;","Place of Origin":"CHINA"}}
{"title":"ASME SA210 Gr.A1 Seamless Tube with Aluminum Al1060 Embedded G type Fin tube","imgUrl":"https:\/\/img.chinax.com\/nimg\/42\/83\/722d4f6a846d5b7ec435ca0956f1-200x200-1\/asme_sa210_gr_a1_seamless_tube_with_aluminum_al1060_embedded_g_type_fin_tube.jpg","attrs":{"Brand Name":"YUHONG","Model Number":"A179, A192, SA210 Gr A1\/C, A106 Gr B, TP304\/304L,TP316\/TP316L\/316Ti, A789 S31803\/S2205 Copper:UNS12200\/UNS14200\/UNS70600, CuNi70\/30,CuNi 90\/10","Certification":"ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008","Place of Origin":"China"}}
{"title":"Studded Tube , ASTM A213 T9 \/ ASME SA213 T11 with 11Cr (SS 409) Studded Fin Tube","imgUrl":"https:\/\/img.chinax.com\/nimg\/00\/5e\/193bf5e1420e2ad6d787493b5761-200x200-1\/studded_tube_2c_astm_a213_t9_2f_asme_sa213_t11_with_11cr_28ss_409_29_studded_fin_tube_2csteam_reforming_furnace.jpg","attrs":{"Brand Name":"YUHONG","Model Number":"Studded Fin Tube , Pin Tube, Oil Furnace Tube , Steam Furnace Tube, Reforming Tube","Certification":"ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008","Place of Origin":"China, Korea"}}
{"title":"ASTM A179 Carbon Steel Seamless Tube with Aluminum ASTM B221 6063 (1060),","imgUrl":"https:\/\/img.chinax.com\/nimg\/7b\/14\/2f89f1fc083fb0d86fc1c8c6a7b5-200x200-1\/astm_a179_carbon_steel_seamless_tube_with_aluminum_astm_b221_6063_281060_29_2c_extruded_fin_tube.jpg","attrs":{"Brand Name":"YUHONG","Model Number":"Extruded Fin Tube","Certification":"ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008","Place of Origin":"China, Korea"}}
{"title":"Welded Helical Serrated Fin Tubes HFW Fin Tube For Per Heating Application","imgUrl":"https:\/\/img.chinax.com\/nimg\/e9\/39\/0f0159470fee4c18f8581ab23fed-200x200-1\/welded_helical_serrated_fin_tubes_hfw_fin_tube_for_per_heating_application.jpg","attrs":{"Brand Name":"YUHONG","Model Number":"HFW fin Tube , Serrated Fin Tube","Certification":"ISO , PED, API , CE","Place of Origin":"CHINA"}}
{"title":"ASME SA179 , ASTM A179 Carbon Steel Low Finned Tube, for Air Cooler, cooling","imgUrl":"https:\/\/img.chinax.com\/nimg\/e1\/4f\/b53764af2b239d868febd1d5d10a-200x200-1\/asme_sa179_2c_astm_a179_carbon_steel_low_finned_tube_2c_for_air_cooler_2c_cooling_tower_application.jpg","attrs":{"Brand Name":"YUHONG","Model Number":"Low Fin Tube, Low Finned Tube","Certification":"ABS, GL, DNV, NK, PED, AD2000, CCS, ISO 9001-2008","Place of Origin":"CHINA"}}
{"title":"ASTM A179\/ ASME SA179 Carbon Steel Seamless Tube with Aluminum 1060\uff0c Air Cooler,","imgUrl":"https:\/\/img.chinax.com\/nimg\/38\/23\/670b6953aaff63cf0fbfa25b3c77-200x200-1\/astm_a179_2f_asme_sa179_carbon_steel_seamless_tube_with_aluminum_1060_ef_bc_8c_air_cooler_2c_extruded_fin_tube_2cembedded_g_fin_tu.jpg","attrs":{"Brand Name":"YUHONG","Model Number":"A179 , A192, A210 Gr.A1, C , ASTM A213 T11, T22, T5, T9","Certification":"ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008","Place of Origin":"China"}}
Premium High Frequency Welded Finned Tube: ASTM A335 P22 Base Tube with 11-13Cr Stainless Steel Fin
Comprehensive Introduction to A335 P22 & 11-13Cr HFW Finned Tubes
High Frequency Welded (HFW) finned tubes are critical components in heavy-duty heat exchangers, boilers, and waste heat recovery systems. By combining the high-temperature strength of the ASTM A335 P22 alloy steel base tube with the exceptional corrosion and oxidation resistance of the 11-13Cr ferritic stainless steel fin, this composite tubular product delivers outstanding thermal efficiency and an extended service life in harsh, high-temperature working environments.
Structure and Embedding Process of A335 P22 Base Tube and 11-13Cr Fin
Our HFW finned tubes feature a robust and thermodynamically optimized structure, manufactured through an advanced solid-state welding process:
Base Tube (ASTM A335 P22): A seamless ferritic alloy-steel pipe designed specifically for high-temperature service. It provides the core structural integrity and pressure containment.
Fin Material (11-13Cr Stainless Steel): A continuous strip of ferritic stainless steel (typically equivalent to AISI 409/410/410S) that offers excellent resistance to sulfur-bearing gases and oxidation.
High-Frequency Welding Process: Unlike mechanical embedding or extrusion, the 11-13Cr fin strip is spirally wound onto the A335 P22 base tube while a high-frequency electrical current heats both the base tube surface and the fin edge to a forging temperature. Pressure is then applied to forge them together, creating a true metallurgical bond. This guarantees 100% heat transfer efficiency and zero contact resistance.
Chemical Composition: ASTM A335 P22 Base Tube vs. 11-13Cr Fin
Strict adherence to chemical composition is vital for the performance of high-temperature finned tubes. Below is the certified chemical breakdown of the materials we use:
Element (%)
Base Tube: ASTM A335 P22
Fin Strip: 11-13Cr (Grade 410S)
Carbon (C)
0.05 – 0.15
≤ 0.08
Manganese (Mn)
0.30 – 0.60
≤ 1.00
Phosphorus (P)
≤ 0.025
≤ 0.040
Sulfur (S)
≤ 0.025
≤ 0.030
Silicon (Si)
≤ 0.50
≤ 1.00
Chromium (Cr)
1.90 – 2.60
11.5 – 13.5
Molybdenum (Mo)
0.87 – 1.13
-
Nickel (Ni)
-
≤ 0.60
Dimensional Tolerance Range for A335 P22 + 11-13Cr Finned Tubes
To ensure seamless integration into your heat exchanger bundles, our manufacturing process strictly follows international standards. We offer highly customizable dimensions with tight manufacturing tolerances:
Parameter
Standard Range (Customizable)
Manufacturing Tolerance
Base Tube Outer Diameter (OD)
19.05 mm – 219.1 mm
± 0.1 mm to ± 0.3 mm (per standard)
Base Tube Wall Thickness (WT)
2.0 mm – 15.0 mm
± 10%
Fin Height
8.0 mm – 30.0 mm
± 1.0 mm
Fin Thickness
0.8 mm – 2.5 mm
± 0.15 mm
Fin Pitch (Density)
3 – 10 FPI (Fins Per Inch)
± 0.5 mm
Bare/Unfinned Ends Length
20 mm – 150 mm
± 5.0 mm
Overall Tube Length
Up to 25 Meters
± 5.0 mm
Key Performance Advantages of A335 P22 & 11-13Cr Finned Tubes
Exceptional Heat Resistance (A335 P22): The base tube easily withstands continuous operating temperatures up to 600°C (1112°F), making it ideal for power plant superheaters.
Superior Corrosion Resistance (11-13Cr): The stainless steel fin resists oxidation and high-temperature gas corrosion, significantly reducing fouling and scaling.
Maximum Heat Transfer Efficiency: The high-frequency welding creates a seamless metallurgical joint, preventing thermal fatigue and eliminating air-gap thermal resistance over time.
High Mechanical Strength: The welded fins increase the overall rigidity of the A335 P22 tube, providing excellent resistance to mechanical vibrations inside the boiler casing.
Detailed Application Fields for A335 P22 + 11-13Cr Finned Tubes
Due to the synergistic properties of A335 P22 and 11-13Cr, these finned tubes are the preferred choice for heavy industrial applications:
Power Generation Boiler Systems: Used in Economizers, Superheaters, and Air Preheaters in coal-fired and gas-fired power plants.
Heat Recovery Steam Generators (HRSG): Highly effective in capturing exhaust gas heat from gas turbines.
Petrochemical Refineries: Fired heaters, process fluid coolers, and convection sections of cracking furnaces.
Waste-to-Energy Plants: Enduring the highly corrosive and high-temperature flue gases found in municipal solid waste incinerators.
Why Choose Us for Your A335 P22 and 11-13Cr Finned Tube Projects?
With over a decade of experience in manufacturing industrial heat transfer components, we are your trusted global partner:
Premium Raw Materials: We source our A335 P22 alloy tubes and 11-13Cr stainless steel coils only from ISO 9001 certified, world-renowned steel mills.
Strict Quality Control (QC): Every A335 P22 and 11-13Cr finned tube undergoes rigorous testing, including Hydrostatic Testing, Eddy Current Testing (ECT), and Weld Peel Tests, ensuring 100% weld integrity.
Custom Engineering: Our engineering team can adjust fin pitch, height, and tube length exactly to your thermodynamic drawings.
Export-Ready Packaging: We use steel-framed wooden crates with internal desiccant and anti-rust wrapping, guaranteeing your A335 P22 and 11-13Cr finned tubes arrive in pristine condition, regardless of ocean transit times.
Yuhong Group is one of the large scale group company in China, more than 35 years experience in the international market, providing high-quality services to over 3000 customers, end user which like Aramco, Petrobras, Pemex, Petronas, Ecopetro, Petroecuador, …. till now Yuhong Grou...
Yuhong Group is one of the large scale group company in China, more than 35 years experience in the international market, providing high-quality services to over 3000 customers, end user which like Aramco, Petrobras, Pemex, Petronas, Ecopetro, Petroecuador, …. till now Yuhong Grou...
