YUHONG HOLDING GROUP CO., LTD
YUHONG HOLDING GROUP CO., LTD
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Solid Welded Finned Tubes ASME SA213 Material T12 For Power Generation
ASME SA213/ASTM A213 covers seamless ferritic and austenitic steel boiler, superheater, and heat-exchanger tubes, designated Grades T5, TP304, etc. T12 material has high-temperature strength, good corrosion resistance and excellent weldability and formability. T12 tubes are essential for high-temperature and high-pressure applications, offering durability and reliability in demanding environments. Their composition and mechanical properties make them suitable for critical components in boilers, superheaters, and heat exchangers.
Chemical Composition (%) K11562
| Grade | C | Mn | P | S | Si | Cr | Mo |
| T12 | 0.05-0.15 | 0.30-0.61 | 0.025 | 0.025 | 0.50 | 0.80-1.25 | 0.44-0.65 |
Mechanical Properties K11562
| Grade | Tensile Strength,min | Yield Strength (0.2%Offset,min) | Tempering Temperature,min |
| 60ksi (415 MPa) | 32ksi (220 MPa) | 1200-1350°F [650-730°C] | |
| T12 | Elongation in 2 in. | Nrinell/Vickers | Rockwell |
| 30% | 163HBW/170HV | 85HRB |
Definition
Solid fin tubes, also called high frequency welded fin tubes, they are specialized heat exchanger tubes with fins integrally bonded to the outer surface. These fins enhance heat transfer efficiency by increasing the surface area in contact with the surrounding medium.
Advantages
Increased surface area improves heat transfer efficiency
Improved tubes' corrosion resistance, wear resistance, low contact thermal resistance, high stability, anti ash ability, and the stiffness and seismic performance
Good microstructure and properties of the weld because of the high welding speed and strong self cooling effect
Solid fins are robust and resistant to mechanical damage
Applications
Boilers and Heat Exchangers
Heating and Cooling Systems
Power Generation
Chemical Processing
HVAC Systems
Marine Applications,etc
