ASME SB111 UNS C71500 Seamless Tube for Brine Heater in Desalination Plant
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ASME SB111 UNS C71500 is a 70/30 copper-nickel alloy seamless tube renowned for its exceptional resistance to seawater corrosion, biofouling, and high-velocity erosion, making it ideal for brine heaters in desalination plants. The addition of iron and manganese enhances its mechanical properties and corrosion resistance, ensuring outstanding performance even in high-velocity seawater and polluted environments, which is particularly suitable for brine heaters in desalination facilities.
The UNS C71500 alloy seamless tube exhibits high mechanical strength and excellent high-temperature creep resistance, specifically designed for seawater and marine applications such as condensers, heat exchangers, and distillation systems.Cu-ni 70/30 Welded Pipes are also used in chemical processing industries like heat exchangers, cooling plants, distiller tubes, refrigerators, and condenser components. 70/30 Cu-ni Hollow Pipe has a tensile strength of 50,000 psi and yield strength of 240 MPa.
ASME SB111 UNS C71500 pipe Specification:
| Specifications | ASTM B111 & Its equivalent ASME, DIN & EN Standard |
| Grades | C71500; CuNi30Mn1Fe; CW354H |
| Type | U-bend & Straight seamless tube |
| Outside Diameter | 6.35mm to 25.4mm or as required |
| Wall Thickness | 0.508mm to 3.4mm or as required |
| Length | Upto 6 meters, custom cut lengths |
| Delivery Condition | O61, Annealed |
| Ends | Plain End |
| Other Testing | Product Analysis, Eddy Current Test, Hydrostatic Test, Ultrasonic Test, Flattening Test, Hardness Test, Tensile Test etc. |
| Dimension | All Pipes & Tube Is Manufactured and Inspected / Tested to the Relevant standards including ASTM and ASME |
| Packing | Plywood case |
Chemical Composition:
| Grade | Cu | Ni | Pb | Fe | Zn | Mn |
| C71500 | Remainder | 29.0-33.0 | 0.05 max. | 0.4-1.0 | 1.0 max. | 1.0 max |
Mechanical Properties:
| Grade | Tensile Strength, min, ksi (MPa) |
Yield Strength, min, ksi (MPa) |
Expansion of Tube Outside Diameter, % |
| C71500 | 52(360) | 18(125) | 30 |
UNS C71500 Physical Properties
|
Melting Point - Liquidus°F |
2260 |
|---|---|
|
Melting Point - Solidus°F |
2140 |
|
Density lb/cu in. at 68°F |
0.323 |
|
Specific Gravity |
8.94 |
|
Electrical Conductivity% IACS at 68°F |
4.6 |
|
Thermal ConductivityBtu/ sq ft/ ft hr/ °F at 68°F |
17 |
|
Coefficient of Thermal Expansion 68-57210⁻⁶ per °F (68 – 572°F) |
9 |
|
Specific Heat CapacityBtu/ lb /°F at 68°F |
0.09 |
|
Modulus of Elasticity in Tensionksi |
22000 |
|
Modulus of Rigidityksi |
8300 |
Finishes and Coatings of Cu-Ni 70/30 Heat Exchanger Tube
Novolac Epoxy
High Functionality Epoxy - Curran Coating
liquid epoxy coatings
Thin Film Engineered Polymer Coatings
HVAC Chillers and Heat Exchanger Coatings
Sakaphen- Shell and tube heat exchanger lining
Surface Condenser Tube Sheets
IGS high velocity thermal spray (HVTS) coating solutions
Phenol Epoxy
Curran 1000 T Hybrid Epoxy
Our warehouse holds a large inventory of ASME SB 111 C71500 standard copper-nickel tubes. Please contact us for free samples and the inventory list.
Copper tubes are versatile and made from copper alloys. The 70/30 copper-nickel tube is one of them, with a copper content of 70% and a nickel content of 30%. GNEE offers 70/30 copper-nickel seamless tubes in various sizes, shapes, and specifications. They require no special material considerations and are easy to weld, fabricate, and cold work.
Due to its rapid formation of a protective film when exposed to clean seawater, it exhibits seawater corrosion resistance. The color of this protective film can be brown, green-brown, or green.
