SB111 UNS C71500 welded copper nickel Heat exchangers and condensers pipe

C71500 Copper Nickel Tubes PDF

C71500 Copper Nickel Size & Price PDF

C70600 & C71500, Copper nickel offers excellent corrosion resistance, especially in marine salt water environments. The main, wrought copper-nickel alloys chosen for sea water service contain 10 or 30 percent nickel. They also have important additions of iron and manganese which are necessary to maintain good corrosion resistance. Some common applications for copper nickel include: valves, and pump components.

Hydraulic lines

Fish cages for aquaculture

Heat exchangers and condensers

Desalination units

Sea water pipework

Tubes for power plants and ships

Offshore fire water systems

Pumps, valves, sheathing and fittings for ship hulls

Desalination units

Hydraulic lines

Fish cages for aquaculture

Heat exchangers and condensers

Sea water pipework

Offshore fire water systems

Tubes for power plants and ships

Pumps, valves, sheathing and fittings for ship hulls

1. Welding: Prefer TIG or laser welding to minimize heat-affected zone brittleness.

2. Annealing: Post-cold working, anneal at 650-750°C; hot working temperature range: 900-1050°C.

3. Machining: Cutting speed ≤50 m/min; use carbide tools with oil-based coolant.

Q: What is the maximum operating temperature for C71500?
A: C71500 can be used in continuous service at temperatures up to approximately 260°C (500°F). Its strength and oxidation resistance remain stable at elevated temperatures.

Q: Is C71500 magnetic?
A: No, C71500 is generally considered a non-magnetic alloy due to its high copper and nickel content.

Can C71500 be welded?
A: Yes, C71500 can be welded using common techniques such as Gas Tungsten Arc Welding (GTAW/TIG) and Gas Metal Arc Welding (GMAW/MIG). It is essential to use matching filler metals (e.g., ERCuNi) and proper shielding gases.

What is the difference between C71500 and C70600?
A: The primary difference is the nickel content. C71500 contains about 30% nickel, while C70600 (90/10 Cu-Ni) contains about 10% nickel. C71500 generally offers superior corrosion resistance and strength, especially in more aggressive seawater conditions.

Gnee is a premier manufacturer and international supplier of comprehensive copper and copper alloy products, committed to delivering excellence in copper tubes, copper sheets, copper plates, copper bars, copper rods, copper wires, and copper strips.

Our Extensive Product Portfolio & Specifications:

Copper Tubes & Pipes:
We supply a full range including **Capillary Tubes, Thin-Walled Copper Tubes, Thick-Walled Copper Tubes, Round Pipes, Square Pipes, Rectangular Pipes, Welded Pipes, Seamless Pipes, Heat Exchanger Tubes, and Condenser Tubes.

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Our flat-rolled products cover Copper Foils, Thin Sheets, Thick Plates, and Circles (Round Plates) in various tempers (O, H) for diverse applications.

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We offer Round Bars, Square Bars, Hexagonal Bars, and Flat Bars with excellent machinability and strength.

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Our lineup includes high-conductivity Bare Copper Wires, Stranded Wires, and precisely manufactured Copper Strips.

Common Alloys & International Standards:

We master a wide array of materials compliant with ASTM, EN, JIS, and GB standards:

Pure Copper: C11000 (ETP Copper), C10200 (Oxygen-Free Copper), C12000 (DLP)

Brass Alloys: C26000 (Cartridge Brass), C27200 (Brass), C28000 (Muntz Metal)

Copper-Nickel: C70600 (CuNi90/10), C71500 (CuNi70/30)

Phosphor Bronze: C51900, C52100, C54400

Serving industries from HVAC/R and plumbing to electrical, automotive, and marine engineering, Gnee provides OEM support, competitive pricing, and reliable bulk supply for your global projects.