ASTM A213 304 316 Fin Tube Connector Fin Tube Air Cooler Finned Pipe Heat Exchanger Finned Stainless Steel Tubing

ASTM A213 304 316 Fin Tube Connector Fin Tube Air Cooler Finned Pipe Heat Exchanger Finned Stainless Steel Tubing


Finned tubes are used in applications involving the transfer of heat from a hot fluid to a colder fluid through a tube wall.
The rate at which such heat transfer can occur depends on three factors: (1) the temperature difference between the
two fluids; (2) the heat transfer coefficient between each of the fluids and the tube wall; and (3) the surface area to which
each fluid is exposed. In the case of a bare (unfinned) tubes, where the outside surface area is not significantly greater
than the inside surface area, the fluid with the lowest heat transfer coefficient will dictate the overall heat transfer rate.
When the heat transfer coefficient of the fluid inside the tube is several times larger than that of fluid outside the tube
(for example steam inside and oil outside), the overall heat transfer rate can be greatly improved by increasing the
outside surface of the tube. In mathematical terms, the product of heat transfer coefficient for the outside fluid multiplied
by the outside surface area is made to more closely match the product of the inside fluid heat transfer coefficient multiplied
by the inside surface area.

Base tube material: SA213 304 SMLS 31.8mmOD*2.9mmTHK*7260mmLG
Fin Material: CS; FPM67fins X 1.5 mm THK x 75 mm W x 160 mm H
Manufacturing Process of Air Cooler Finned Pipe :
It adopts high frequency welding spiral technology, the national patent technology with high frequency power supplies as
the heat source to heat the steel strip, steel pipe at the same time,be welded together
Material: Steel, Carbon Steel, etc.
Bare tube Connector Fin Tube OD: 25-63mm Fin Pitch: 8-30mm Fin Height: <200mm Fin Thick: 1.5-3.5mm

Applications
Typical examples of applications where finned tubes are used include the following:

• A wide variety of economizers and waste heat recovery units to utilize heat from boiler flue gas, gas turbine exhaust, incinerators, etc.
• Glycol dehydration units
• Fired heaters, such as LNG vaporizers, air pre-heaters, oil heaters, etc.
• Asphalt tank heaters
• Air coolers, such as compressor jacket water and lube oil coolers
• Lumber drying kilns, and similar applications
• Livestock enclosure and greenhouse heaters

Torich Interational Limited is a professional manufacturer and exporter of steel pipes materials. It is an international marketing and sales company specialized in steel tubes, which holds the factories of Seamless Steel Tubes with Carbon and Alloy Steel Grade, Welded Precision Steel Tubes，DOM Steel Tubes, Seamless & Welded Stainless Steel Tubes with Nickel and Alloy Steel Grade.

Our steel pipes cover the following ranges:
Seamless Precision Steel Pipes
Welded Precision Steel Pipes, with DOM production
Seamless Heat Exchanger Steel Pipe
Seamless Boiler Steel Pipes
Seamless Structural Steel Pipes
Seamless Mechanical Steel Pipes
Seamless Alloy Steel Tubes & Pipes
Seamless Stainless Steel tubes
Welded Stainless Steel Tubes
Seamless Stainless Steel Tubes & Pipes
Welded Stainless Steel Tubes & Pipes
Seamless Carbon Steel Tubes & Pipes
Nickel Alloy Steel Tubes & Pipes

Steel Grade:
Carbon Steel Grade:
ST35.8, ST37.0, ST44, ST52;
E155, E195, E215, E235, E275, E355;
195GH, P235GH, P265GH, P195TR1, P195TR2, P235TR1, P235TR2, P265TR1, P265TR2;
SAE1010, SAE1020, SAE1026, SAE1035, SAE1045;
Carbon steel tube: SA178, A179, A192, A210, SA213, SA214, etc.

Alloy Steel Grade:
T2, T5, T9, T11, T12, T17, T21, T22, T91,T92, 15Mo3,16Mo3, 13CrMo44;
SAE4130, SAE4140, 40Cr, 40Cr4, 10CrMo910, 12CrMo910, 11CrMo910,
25CrMo4, 35CrMo, 35CrMo4, 42CrMo4, 34CrMo4, 20MnV, 20MnV6,20CrMn;
Carbon steel tube:A179,A192,A210,DIN17175,etc.