Extruded ASTM B111 C71500 aluminum finned tube
What is extruded ASTM B111 C71500 aluminum finned tube?
Extruded ASTM B111 C71500 aluminum finned tubes are specialized heat exchanger components featuring a copper-nickel alloy tube (C71500) with helically wound, rectangular aluminum fins extruded onto its surface. This combination offers excellent thermal conductivity, high corrosion resistance, and robust mechanical strength, making it ideal for use in harsh environments such as marine and offshore oil and gas industries. The aluminum fins, tightly bonded to the copper-nickel tube, enhance heat transfer efficiency by providing a large surface area, while the customizable fin pitch, height, and thickness allow for specific application requirements.
Finned tubes made from B111 C71500 copper-nickel alloy with extruded aluminum fins are an excellent choice for various heat exchanger applications. These tubes offer a high level of thermal conductivity, corrosion resistance, and mechanical strength, making them suitable for use in harsh operating conditions.
ASTM B111 C71500 Copper-Nickel Alloy Tube Chemical Composition
Element |
Percentage Range (%) |
Copper (Cu) |
69.0 - 71.0 |
Nickel (Ni) |
29.0 - 30.0 |
Iron (Fe) |
0.40 max |
Zinc (Zn) |
1.0 max |
Manganese (Mn) |
1.0 max |
Lead (Pb) |
0.05 max |
Silicon (Si) |
0.25 max |
Sulfur (S) |
0.05 max |
Carbon (C) |
0.05 max |
ASTM B111 C71500 Copper-Nickel Alloy Tube Mechanical Properties
Property |
Value |
Tensile Strength, ksi |
52 - 67 |
Yield Strength, ksi |
18 - 32 |
Elongation, % |
30 min |
Hardness (Rockwell B) |
60 - 80 |
The extruded aluminum fins are helically wound around the plain copper-nickel tube. The fins provide a large surface area for heat transfer, which allows for efficient heat transfer between the fluids passing through the heat exchanger.
The B111 C71500 copper-nickel alloy tube used in the plain tube has a high level of resistance to corrosion, particularly in marine environments. This makes it an excellent choice for heat exchangers used in the offshore oil and gas industry.
The extruded aluminum fins are also corrosion-resistant, which makes them suitable for use in harsh environments. The aluminum fins are extruded onto the plain tube, which ensures a tight bond between the fins and the tube. This eliminates the possibility of the fins separating from the tube during operation.
The fin pitch, height, and thickness can be customized to meet specific application requirements. The fin pitch refers to the distance between adjacent fins, and the fin height refers to the height of the fins from the surface of the plain tube. The fin thickness refers to the thickness of the aluminum fins.
Extruded ASTM B111 C71500 aluminum finned tube Typical Inquiry
Base Tube Material |
Fin Material |
Tube Length (mm) |
Fin length (mm) |
Fin Tube Quantity (Pc) |
ASTM B111 C71500 |
Aluminum |
9144 |
9040 |
740 |
Base Tube O.D (mm) |
Base Tube Thickness (mm) |
Fin Height (mm) |
Fin Thickness (mm) |
Fin Pitch (mm) |
25.4 |
2.11 |
15.88 |
0.4 |
2.54 |
ASTM B111 is Standard Specification for Copper and Copper-Alloy Seamless Condenser Tubes and Ferrule Stock |
In terms of performance, finned tubes made from B111 C71500 copper-nickel alloy tube with extruded aluminum fins have a high heat transfer coefficient and a low pressure drop. This makes them ideal for use in applications where high heat transfer rates are required.
Finned tubes made from B111 C71500 copper-nickel alloy with extruded aluminum fins offer excellent performance and durability in a variety of heat exchanger applications. They are an excellent choice for applications where high heat transfer rates are required in harsh operating environments.