ASTM A179 G-Type Fin Tube Fin Aluminium 1060 Embedded Finned Tube
G type Fin Tube
Finned tubes are considered one of the most important aspects of any gas-to-gas or gas-to-liquid type heat exchanger and are compact units with robust and damage-resistant construction.
The outer surface of the finned tube is covered with small fins. The role of these fins is to act as a transfer process and filter. Heat transfer is generally from the inside out, and then reverse. The heat transfer rate of a particular type of finned tube may depend on:
Temperature difference between fluid/gas
Heat transfer between fluid and tube wall
Bare surface
Finned tube manufacturers produce many types of finned tubes. The type required for a particular process depends on the process equipment unit.
G-finned tubes are called recessed finned tubes, where G indicates a groove. They are formed by twisting strips of fins made of copper or aluminum into machined grooves and backfilling to secure the lock. Fill the bottom tube material. G-finned tubes are strong compared to other tubes. Therefore, it is widely used where heat transfer at high temperatures is required.
What is ASTM A179 ?
ASTM A179 covers minimum-wall thickness, seamless cold-drawn low-carbon steel tubes for tubular, heat exchanger, condensers, and other heat transfer services. seamless ASTM A 179 steel tube is supplied and produced by cold drawning method. Chemical composition contains carbon, manganese, phosphorus, and sulfur.
Chemical Composition Requirements
| Element | Weight Percent |
| C | 0.06~0.18 |
| Mn | 0.27~0.63 |
| P | ≤0.035 |
| S | ≤0.035 |
*All values shall be based on heat analysis.
Mechanical Properties
T.S. min.
ksi [MPa] | 47 [325] |
Y.S. min.
ksi [MPa] | 26 [180] |
El. in 2"
min. % | 35 |
Hardness,
Max. HRB | 72 |
Fin Tube Material
| Bare Tube Materials |
| Carbon Steel Tubes | A179, A192, SA210 Gr A1/C, A106 Gr B, A333 Gr3 Gr6 Gr8, A334 Gr3 Gr6 Gr8, 09CrCuSb, DIN 17175 St35.8 St45.8, EN 10216 P195 P235 P265, GB/T3087 Gr10 Gr20, GB/T5310 20G 20MnG, |
| Alloy Steel Tubes | A209 T1 T1a,A213 T2 T5 T9 T11 T12 T22 T91,A335 P2 P5 P9 P11 P12 P22 P91,EN 10216-2 13CrMo4-5 10CrMo9-10 15NiCuMoNb5-6-4 |
| Stainless Steel Tubes | TP304/304L, TP316/TP316L TP310/310S TP347/TP347H |
| Copper Tubes | UNS12200/UNS14200/UNS70600, CuNi70/30, CuNi 90/10 |
| Titanium Tubes | Gr. 2 |
| Fin materials |
| Aluminum (Alu.1100, Alu.1060) |
Application
Fin tubes are widely used in Sinopec, PetroChina, CNOOC, electric power, metallurgy and other industries. Due to the high quality of our products, fast and punctual delivery, reasonable price and good after-sales service, our company has acquired the recognition of the industry and the trust of our clients.
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ASTM A179 G-Type Fin Tube Fin Aluminium 1060 Embedded Finned Tube Images
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