ASTM A106 Gr.B Tube With Cu-T2 Fin with Embedded Fin Tube G-Type
Inlay fin tubes, also known as G-fin tubes, are manufactured by mechanically wrapping fin material around a base tube. Their key feature is that the fin legs are embedded into the base tube surface under tension, forming a tight mechanical and metallurgical bond without the need for any filler material.
The combination of a sturdy carbon steel base tube and highly thermally conductive copper fins provides a unique balance of strength, corrosion resistance, and excellent heat transfer performance.
ASTM A106 Gr. B Seamless Carbon Steel Tube Chemical Composition(%):
| Standard |
Grade |
Chemical Components (%) |
| C |
Si |
Mn |
P |
S |
Mo |
Cr |
V |
| ASTM A106 |
A |
≤0.25 |
≥01.0 |
0.27-0.93 |
≤0.035 |
≤0.035 |
≤0.15 |
≤0.40 |
≤0.08 |
| B |
≤0.30 |
≥0.10 |
0.29-1.06 |
≤0.035 |
≤0.035 |
≤0.15 |
≤0.40 |
≤0.08 |
| C |
≤0.35 |
≥0.10 |
0.29-1.06 |
≤0.035 |
≤0.035 |
≤0.15 |
≤0.40 |
≤0.08 |
ASTM A106 Gr. B Seamless Carbon Steel Tube Mechanical Tests Required
| Standard |
Grade |
Mechanical properties |
Tensile Strength (Mpa) |
Yield Strength (Mpa) |
Elongation (%) |
| ASTM A106 |
A |
≥330 |
≥205 |
≥35 |
| B |
≥415 |
≥240 |
≥30 |
| C |
≥485 |
≥275 |
≥30 |
Key Features:
✦High-Pressure/High-Temperature Resistance: Designed for high-pressure systems, they can withstand temperatures typical of boiler, superheater, and heat exchanger applications.
✦Strength and Durability: The seamless construction provides exceptional mechanical strength and integrity.
✦Weldability: They can be easily welded to carbon steel piping, headers, and tubesheets.
✦Fin Material: Copper UNS C11000 (Cu-T2)
✦Standard: UNS C11000 (also known as C110 or electrolytic tough pitch copper - ETP copper) is a standard commercial copper.
Applications:
✦This specialized tubing is ideal for applications where high thermal performance and mechanical durability are critical:
✦Heat Recovery Steam Generators (HRSGs): Used in the economizer and low-pressure section.
✦Air-Cooled Steam Condensers: Used in power plants and large industrial processes.
✦Finned Tube Boilers: Used for increased efficiency and compact size.
✦Oil and Air Coolers: Used in industrial processes where air is used to cool process fluids.
✦HVAC & Refrigeration Systems: Used in large industrial heating coils or specialized heat recovery units.