Nov 15, 2025 Leave a message

ASTM B111 C71500 70/30 Copper-Nickel for Exchanger shells

C71500 Copper Nickel Tubes PDF

C71500 Copper Nickel Size & Price PDF

 

Products Description

ASTM B111 C71500 70/30 Copper-Nickel (also known as CuproNickel) is an alloy with 70% Copper and 30% Nickel. GNEE carries C71500 70/30 alloy in Sheet, Plate, Bar, Pipe, Tube, Fittings, and Flanges.

 

B111 B71500 Chemical Composition

Cu Fe Pb Mn Ni Zn
Min/Max Rem 0.40 - 1.0 0.05 1 29.0 - 33.0 1
Nominals 69.5000 0.5000 - - 30.0000 -

 

SB 111 C71500 Physical Properties

Product Property US Customary Metric
Coefficient of Thermal Expansion 9.0 · 10-6 per oF (68-572 F) 16.2 · 10-6 per oC (20-300 C)
Density 0.323 lb/in3 at 68 F 8.94 gm/cm3 @ 20 C
Electrical Conductivity 4 %IACS @ 68 F 0.027 MegaSiemens/cm @ 20 C
Electrical Resistivity 225.0 ohms-cmil/ft @ 68 F 37.4 microhm-cm @ 20 C
Melting Point - Liquidus 2260 F 1238 C
Melting Point - Solidus 2140 F 1171 C
Modulas of Elasticity in Tension 22000 ksi 152000 MPa
Modulus of Rigidity 8300 ksi 57230 MPa
Specific Gravity 8.94 8.94
Specific Heat Capacity 0.09 Btu/lb/oF at 68 F 377.1 J/kg · oK at 293 K
Thermal Conductivity 17.0 Btu · ft/(hr · ft2 · oF) at 68F 29.4 W/m · oK at 20 C
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C71500 Copper Nickel (70/30) Applications

Condensers

Seawater piping

Power plants

Exchanger shells

Industrial

Marine

 

Manufacturing and Processing Technology

The manufacturing process of C71500 heat exchanger tubes involves multiple steps to ensure their quality and performance. Alloy billets are obtained through melting and casting, and then hot-rolled or cold-drawn into tubes. During processing, controlling temperature and pressure is crucial to avoid internal material defects. Subsequent treatments may include annealing to relieve stress, and surface polishing or coating to enhance corrosion resistance. The entire process must strictly adhere to standard specifications to guarantee the dimensional accuracy and mechanical properties of the tubes.

 

Maintenance and Usage Recommendations

To extend the service life of C71500 heat exchanger tubes, routine maintenance is essential. During use, the tube walls should be regularly inspected for signs of corrosion or scaling, and deposits should be cleaned promptly. Prolonged operation at extreme temperatures or pressures is recommended to prevent material fatigue. If localized damage is found, repair or replacement may be necessary. Storage should be in a dry environment to reduce the risk of oxidation. These measures help maintain heat exchange efficiency and reduce maintenance costs.

 

Our spot inventory

ASME SB111 C71500

C71500 seamless condenser tube

C71500 welded copper nickel pipe

ASTM B111 C71500

ASTM B466 C71500 pipe

C71500 cupronickel boiler tube

70/30 copper nickel pipe

C71500 heat exchanger tube

C71500 welded copper nickel pipe

SB111 UNS C71500

70/30 cupronickel condenser tube

ASTM B111 C71500 heat exchanger tube

C71500 copper nickel pipe

ASTM B111 C71500 heat exchanger tube

ASME SB111 C71500 copper nickel pipe

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About us

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.

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