ASME SB111 C71500 alloy Heat Exchangers Copper Tube

C71500 Copper Nickel Tubes PDF

C71500 Copper Nickel Size & Price PDF

1. High Corrosion Resistance: Excellent performance in seawater, weak acids, and high-temperature oxidation (corrosion rate ≤0.003 mm/a).

2. Mechanical Excellence: Tensile strength 350-550 MPa, elongation 20-40%, combining toughness and plasticity.

3. Machinability: Supports cold/hot working, welding (TIG/MIG), and deep drawing; surface finish up to Ra 0.1μm.

4. Temperature Adaptability: Design temperature up to 371°C (annealed state), no brittleness at cryogenic conditions.

Tensile Strength: The tensile strength of seamless copper tubes in C71500 heat exchangers is typically between 345 and 485 MPa. This means it can withstand significant tensile forces without breaking. In practical applications, when the copper tube is subjected to internal fluid pressure, tension during installation, or tensile stress caused by thermal expansion and contraction, the high tensile strength ensures the structural integrity of the copper tube, allowing it to operate stably under complex conditions, such as in large heat exchangers where it can withstand the tensile forces from high-temperature, high-pressure fluids.

Yield Strength: Its yield strength is generally around 130-240 MPa. Yield strength is the stress value at which a material begins to undergo significant plastic deformation. C71500 copper tubes have suitable yield strength. During normal use, when the stress is below the yield strength, the copper tube will only undergo elastic deformation and can return to its original shape after the stress is relieved, ensuring the dimensional stability and performance reliability of the copper tube during long-term use.

C71500 70/30 alloy is widely used in marine applications due to its excellent resistance to seawater corrosion and stress corrosion cracking.

C71500 70/30 is used primarily in valves, pump components, fittings, flanges and various other marine hardware components.

The alloy is also found uses in high temperature and pressure applications.

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.

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

Copper Bars, Rods & Profiles:
We offer Round Bars, Square Bars, Hexagonal Bars, and Flat Bars with excellent machinability and strength.

Copper Wires & Strips:
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.