YUHONG HOLDING GROUP CO., LTD
| Payment Terms | TT, LC |
| Supply Ability | 1000 tons/month |
| Delivery Time | 30-45 days |
| Packaging Details | Ply-wooden Case With Iron Frame |
| U Bend Finned Tubes Type | U Bend HF Welding Solid Finned Tubes |
| U Bend HFW Finned Tubes Material | ASTM A213 T22 Base Tubes And CS Fins |
| U Bend HFW Finned Tubes Size | Accooding to Clients' Requirments |
| U Bend HFW Finned Tubes Length | Accooding to Clients' Requirments |
| U Bend HFW Finned Tubes Use | Boilers & Economizers,Heat Recovery Steam Generators (HRSGs),Fired Heaters & Process Heaters,etc |
| U Bend HFW Finned Tubes Packing | Ply-wooden Case With Iron Frame |
| Brand Name | Yuhong |
| Model Number | ASTM A213 T22 U Bend Finned Tubes |
| Certification | ABS, BV, DNV, CCS, LR |
| Place of Origin | China |
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Product Specification
| Payment Terms | TT, LC | Supply Ability | 1000 tons/month |
| Delivery Time | 30-45 days | Packaging Details | Ply-wooden Case With Iron Frame |
| U Bend Finned Tubes Type | U Bend HF Welding Solid Finned Tubes | U Bend HFW Finned Tubes Material | ASTM A213 T22 Base Tubes And CS Fins |
| U Bend HFW Finned Tubes Size | Accooding to Clients' Requirments | U Bend HFW Finned Tubes Length | Accooding to Clients' Requirments |
| U Bend HFW Finned Tubes Use | Boilers & Economizers,Heat Recovery Steam Generators (HRSGs),Fired Heaters & Process Heaters,etc | U Bend HFW Finned Tubes Packing | Ply-wooden Case With Iron Frame |
| Brand Name | Yuhong | Model Number | ASTM A213 T22 U Bend Finned Tubes |
| Certification | ABS, BV, DNV, CCS, LR | Place of Origin | China |
| High Light | ASTM A213 T22 U bend alloy steel tubes ，HF welding solid finned boiler tubes ，superheater solid fin tubes with warranty | ||
ASTM A213 T22 U Bend Alloy Steel HF Welding Solid Finned Tubes For Boiler Superheaters
ASTM A213 This specification covers seamless ferritic and aus-tenitic steel boiler, superheater, and heat-exchanger tubes, designated Grades T5,T9,T11,T22,TP304,TP316L, etc.
Chemical Composition (%)
| Grade | C | Mn | P | S | Si | Cr | Mo |
| T22 | 0.05-0.15 | 0.30-0.60 | 0.025 | 0.025 | 0.50 | 1.90-2.60 | 0.87-1.13 |
Mechanical Properties
| Grade | Tensile Strength,min | Yield Strength (0.2%Offset,min) |
| T22 | 60ksi (415 MPa) | 30ksi (205 MPa) |
ASTM A213 T22 (2.25Cr-1Mo) U-bend high-frequency welded solid finned tube is a high-temperature, high-pressure, and corrosion-resistant heat exchange element. It combines the high-temperature creep strength of T22 alloy, the compact structure of the U-bend, and the high efficiency of high-frequency welded solid fins, enabling it to perform critical heat exchange tasks in harsh industrial environments, especially in petroleum refining and large power plant projects.
Compared to straight pipes, the U-shaped bend design not only saves 30-40% of space, but also alleviates thermal stress, as the U-shape absorbs the heat generated during expansion/contraction cycles. The U-shaped bend design also allows for more uniform flow between the inside and outside of the pipe, reducing uneven temperature distribution.
In short, ASTM A213 T22 U‑bend HF welded solid finned tubes are the optimal choice for high‑temperature, high‑pressure boiler superheaters, balancing performance, reliability, and cost.
Which Sections of Boiler Superheaters Adopt U-Bend Alloy Steel Finned Tubes
1. Final / Secondary Superheater (Core Application Zone):This area has the highest temperature and pressure within the boiler flue gas system.
Reasons for selecting U-shaped bent alloy steel finned tubes: The alloy base tube is resistant to high-temperature creep and corrosion; high-frequency welded integral fins significantly improve heat exchange efficiency;The U-shaped bend structure can release thermal expansion stress, preventing pipe cracking under high-temperature alternating conditions.
2.Screen-type superheater:it is located in the upper part of the furnace, in the transition zone between radiation and convection.
It withstands the dual effects of radiant heat transfer and high-speed flue gas scouring; it experiences severe thermal expansion and contraction and complex stress conditions; it employs U-shaped bent alloy finned tube bundles to achieve a compact arrangement, stress compensation, and enhanced heat transfer.
3.High-Temperature Deep Zone After Convection Superheater and Flue Gas
Deep within the convection shaft, the flue gas waste heat temperature is high; the heat load is concentrated, and the heat absorption is large; ordinary carbon steel cannot withstand the high tube wall temperature for extended periods; this area is equipped with U-shaped bent alloy steel finned tubes to enhance waste heat recovery capacity and prevent overheating failure.
Key Application
1.Power Generation (Thermal & Nuclear):
Supercritical/Subcritical Boiler Superheaters/Reheaters
Economizers & Air Preheaters
2.Petrochemical & Refining:
Ethylene Cracking Furnaces
Reformers & Hydrogen Plants
Hydrocracking/Hydrotreating Units
3.Waste Heat Recovery & Energy-from-Waste:
Waste Heat Recovery Boilers (WHRB)
Biomass/MSW Incineration Boilers
Cement/Steel Plant Waste Heat
Company Details
Business Type:
Manufacturer,Importer,Exporter,Trading Company,Seller,Other
Year Established:
1990
Total Annual:
50M-70M
Employee Number:
50~800
Ecer Certification：
Verified Supplier
Yuhong Holding Group has more than 35 years experience for pipeline products, till now we have 3 big joint venture factories, the total production area more than 130000 square meters, and more than 600 workers with 106 production lines give our clients excellent supporting always. &n... Yuhong Holding Group has more than 35 years experience for pipeline products, till now we have 3 big joint venture factories, the total production area more than 130000 square meters, and more than 600 workers with 106 production lines give our clients excellent supporting always. &n...
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