ASTM B111 / ASME SB111 UNS C70600 Copper Nickel 90/10 Low Finned Tube for Oil Cooler
Low finned tubes come in different fin geometries to suit specific applications.They are typically manufactured using processes such as extrusion, roll forming, or embedded fin techniques. Extrusion is the most commonly used method, where fins are formed by squeezing the tube material through specially designed dies. Roll forming involves passing a flat strip of material through a set of rollers to create fins, which are then wound around the tube. Embedded fin techniques involve bonding separate fin strips onto the tube surface. The most commonly used types include plain fins (straight fins without any patterns), spiral fins (fins in a helical pattern along the tube), and longitudinal fins (fins running parallel to the tube axis). Each fin type offers different advantages in terms of heat transfer performance and resistance to fouling.
Benefits of Low Finned Tubes
1. Offers 2.5-3 times the external surface area of bare tube
2. Enhanced heat exchanger efficiency means less tube is required to accomplish the same heat transfer as a bare tube
3. Low finned tube can increase the performance of an existing exchanger without the difficult and expensive task of building new shells etc
4. Reduced space and weight can be extremely valuable in offshore production or high elevation distillation columns. Low finned technology can transform large shell and tube exchangers into compact heat exchangers
The Equivalent Grade of Copper Alloy Tubes
Grade | USA | U.K | Germany | Japan |
China BG | ASTM | BS | DIN | JIS H |
T 2 | C11000 | C101 / C102 | E-Cu58 | C1100 |
TP 2 | C12200 | C106 | SF-Cu | C1220 |
Type of product | Grade(s) | Technical requirements according to |
Copper tube/ pipe | UNS C12200 | ASTM B111, ASME SB111 ASTM B135, ASME SB135 ASTM B251, ASME SB251 BS EN 1057 or closer |
Brass tube/pipe | UNS C23000, UNS C26200 ... UNS C44300, UNS C68700 ... | |
Cupronickel tube/pipe | UNS C70600, UNS C71500 UNS C71640 |
ALSO AVAILABLE - LOW FINNED TUBES | |
Condenser Tube "Y-fin" | Evaporator Tube "T-fin" |
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Inner Grooved (IG) Low Fin Tube | Inner Grooved (IG) Y-Fin / T-fin Tube |
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U-Bent Low Fin Tube | Annealed Low Fin Tube |
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Inspections and Tests - Low Finned Tubes | |
Chemical Composition | |
Mechanical Properties | |
Hydrostatic Test | |
Pneumatic Test | |
Boroscopic Inspection | |
Eddy Current Test |
Applications of Low Fin Tube
1.Heat exchangers for power plants (electric, nuclear, thermal and geothermal power plants)
2.High corrosive systems (condensers, evaporators, sea water desalinations, fertilizing, urea systems, ammonia, gas, corrosive acids)
3.Chemical and petrochemical industries
4.Food processing and refrigeration industries