C71500 is an alloy of copper and nickel, due to Ni unlimited solid solution in Cu, so C71500 has a single α-phase organization. C71500 alloy not only has good overall mechanical properties, but also due to the thermal conductivity close to carbon steel and become easy to weld, no preheating before welding, no need for heat treatment after welding.
C71500 for 70Cu-30Ni alloy, the main component for Cu, Ni, with a small amount of Mn and Fe, can better prevent corrosion of seawater, limit the impurity elements Zn, C, Pb, S, P and so on can improve the rate of thermoelectricity and weldability.
It has good corrosion resistance, high-temperature pressure resistance and thermal conductivity.C71500 copper alloy tube is suitable for a wide range of applications, including marine engineering, refrigeration and air conditioning systems, the chemical industry, and the oil and gas industry. It can withstand high temperatures, pressures and corrosion in harsh environments and ensure the e operation of equipment and piping.C71500 copper alloy tubing is a reliable material choice for a wide range of industrial applications.
ASTM B111 C71500 Chemical Composition
| Element | Content (%) |
| Copper, Cu | 70.0 |
| Nickel, Ni | 30.0 |
ASTM B111 C71500 Mechanical Properties
| Properties | Metric | Imperial |
| Tensile strength, ultimate | 372-517 MPa | 54000-75000 psi |
| Tensile strength, yield (depending on temper) | 88.0-483 MPa | 12800-70100 psi |
| Elongation at break (in 381 mm) | 45.0% | 45.0% |
| Charpy impact | 107 J | 78.9 ft-lb |
| Machinability (UNS C36000 (free-cutting brass) = 100%) | 20% | 20% |
| Shear modulus | 57.0 GPa | 8270 ksi |
| Poisson's ratio | 0.34 | 0.34 |
| Elastic modulus | 150 GPa | 21800 ksi |
Physical properties of ASTM B111 C71500
| Properties | Metric | Imperial |
| Density | 8.94 g/cm3 | 0.323 lb/in3 |
| Melting point | 2140°F | 1171°C |




Characteristic of ASTM B111 C71500
Excellent insulation performance
Elegant design
Super strength
Corrosion resistant
Durability
Application
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
Copper products that GNEE can provide
| Product Name | Copper Pipe |
| Standard | ASTM,JIS,DIN,GB,AISI,DIN,EN |
| Material | T1, T2, T3, C21000, C22000, C22600, C23000, C24000, C26000, C26130, C26800, C27000, C27200, C46500, C51000, C52100, C53400, C61300, C61400, C63000, C63800, C65100, C65500, H63, H65, H68, H70, H80, H85, H90, H96. |
| Purity | 99.9% |
| Technique | Cold drawn, hot rolled, cold rolled and others. |
| Side shape | Round, Square, Rectangular, ect |
| Outer Diameter | 6.35-406mm or Customizable |
| Thickness | 0.5-80mm or Customizable |
| Length | 1-12m or Customizable |
| Surface Treatment | Coating, Oxidation, Coating, Polishing, etc. |
| Type | Seamless, Welded |
| Origin | China |
| Delivery Time | 7-15 days, depending on the situation and quantity |
| Price Terms | EXW, FOB, CIF, CRF, CNF or others |
| Loading Port | Any port in China |
| Payment Term | TT, LC,Cash, Paypal, DP, DA,Western Union or Others. |
| Application | 1. Construction industry2. Mechanical production, energy extraction3. Home appliance industry, refrigeration industry, transportation industry, home decoration and bathroom4. Communication technology, infrastructure, municipal pipeline network, etc. |
| Packaging | Bundle, PVC Bag, Nylon Belt, Cable Tie, Standard export seaworthy package or as Reque |
| Processing Servic | Bending, Welding, Decoiling, Punching, Cutting and Others |
| Tolerance | ±1% |
Standard | ASTMB152,B187,B133,B301,B196,B441,B465,JISH3250-2006, |
Material | C10100,C10200,C10300,C10400,C10500,C10700,C10800,C10910,C10920, |
Diameter | 3mm~800mm |
Length | 1.0m 5.8m,6m,or as required |
Export to | Singapore,India,Poland,Indonesia,Ukraine,Spain,Korea,Thailand,Canada,USA, |
Container Size | 20ft GP:5898mm(Length)x2352mm(Width)x2393mm(High) |
Price Term | Ex-work, FOB, CFR, CIF, etc. |
Application | Copper bar is widely used in boat building,War industry, Car industry and communication |
Package | Standard export seaworthy package,suit for all kinds of transport,or as required. |
Contact | If you have any question,please feel free to contact me. |
Product name | Copper Strip / Copper tape / Copper sheets coil |
Shape | strip,tape,band,coil,roll |
Standard | ASTM, ISO, JIS, DIN, GB, EN |
Grade | ASTM:C10100,C10200,C10300,C10400,C10500,C10700,C10800,C10910,C10920, |
MOQ | 300KG |
Temper | 1/4 hard,1/2hard,full hard,soft,etc |
Surface | Mill finish, polished, anodizing, brushing, sand blasting, powder coating,etc |
Payment terms | T/T,L/C,western union, Paypal |
Price terms | CIF,CFR,FOB,CIF,EXW,CNF |
Width | 0.1-1500mm or customized |
Thickness | 0.1-50mm or customized |
Package | Standard export seaworthy package or as required. |
Delivery time | About 7~10 working days after deposit received |
Application | 1)Further making utensil. |
Product Name | Copper Wire |
Type | Insulated |
Payment term | TT/Trade Insurance/Credit card |
Delivery time | 7-30days( Depend on the quantity) |
Shipping terms | FOB CIF DDP EXW |
Thermal Class | 130/155/180/200/220 C |
Diameter | 0.04mm-6.0mm |
Enameled Type | Polyester/Polyurethane/Polyesterimide/Polyamide-imide |
Application | Motor Transformer Fan Speaker |
Conductor content | 99% |
Copper CNC machined parts
Product Name | Copper Wire |
Type | Insulated |
Payment term | TT/Trade Insurance/Credit card |
Delivery time | 7-30days( Depend on the quantity) |
Shipping terms | FOB CIF DDP EXW |
Thermal Class | 130/155/180/200/220 C |
Diameter | 0.04mm-6.0mm |
Enameled Type | Polyester/Polyurethane/Polyesterimide/Polyamide-imide |
Application | Motor Transformer Fan Speaker |
Conductor content | 99% |

About Us
Founded in 2008, we specialize in exporting premium copper products. Our manufacturing leverages continuous casting lines and precision drawing machines. Rigorous quality control, including eddy current testing and spectrometer analysis, guarantees the superior performance of our copper tubes and coils for global applications.
If you need any help, please contact us immediately!
Email address:sales@gneemetal.com
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