C71500 Copper Nickel 70/30 (CDA 715)
Standards: ASTM B-151, ASTM B-122, DIN 2.0882
C71500 Copper Nickel (70/30) is a highly durable and versatile alloy known for its excellent resistance to seawater corrosion, making it a preferred choice for marine and offshore industries. With a composition of 70% copper and 30% nickel, this alloy exhibits superior mechanical properties, including high tensile strength and excellent weldability. Sunflex Metal Industries provides premium-grade C71500 Copper Nickel that is widely used for heat exchangers, condensers, and piping systems. Its unique combination of strength and corrosion resistance ensures long-lasting performance even in the harshest marine environments.
Sunflex Metal Industries is a trusted supplier and exporter of C71500 Copper Nickel (70/30), serving clients across various sectors, including shipbuilding, power generation, and desalination plants. Our products are manufactured to meet industry standards, ensuring reliability and durability. Whether for large-scale industrial projects or smaller custom applications, we deliver high-quality materials that perform efficiently. For more information or to place an order, please email us at sales@sunflexfittings.com.
C71500 Copper Nickel 70/30 Typical Uses:
- Marine Applications: Used extensively in shipbuilding for components like piping systems, heat exchangers, and seawater-cooled systems due to its excellent resistance to seawater corrosion.
- Power Generation: Ideal for condenser tubes and heat exchangers in power plants, ensuring efficient heat transfer and longevity in challenging environments.
- Desalination Plants: Commonly employed in reverse osmosis systems and desalination processes where corrosion resistance and durability are essential.
- Oil and Gas Industry: Utilized in offshore oil rigs and related infrastructure where exposure to harsh marine conditions is prevalent.
- Chemical Processing: Used in the fabrication of chemical equipment that requires high strength and resistance to corrosive substances.
- Automotive Components: Found in certain automotive applications where good corrosion resistance and mechanical properties are required.
- Military and Defense: Used in naval vessels and other defense-related applications due to its reliability and performance in demanding conditions.
- Heat Exchangers: Widely used in various industries for heat exchange systems due to its thermal conductivity and resistance to scale buildup.
C71500 Copper Nickel 70/30 Specifications
| End Product | Specification |
| Bar | ASTM B122, B151, MILITARY MIL-C-15726, SAE J461, J463 |
| Bolts | ASTM F468 |
| Electrode, Welding | AWS A5.6, MILITARY MIL-E-22200/4 |
| Nuts | ASTM F467 |
| Pipe, Seamless | ASME SB466, ASTM B466 |
| Pipe, Welded | ASTM B608, B467 |
| Plate | ASTM B122, MILITARY MIL-C-15726, SAE J461, J463 |
| Plate, Clad | ASTM B432 |
| Plate, Condenser Tube | ASME SB171, ASTM B171, SAE J463, J461 |
| Rod | ASTM B151, MILITARY MIL-C-15726 |
| Screws | ASTM F468 |
| Sheet | ASTM B122, MILITARY MIL-C-15726, SAE J463, J461 |
| Strip | ASTM B122, MILITARY MIL-C-15726, SAE J461, J463 |
| Studs | ASTM F468 |
| Tube, Condenser | ASME SB111, ASTM B552, B111, MILITARY MIL-T-15005, SAE J463, J461 |
| Tube, Finned | ASME SB359, ASTM B359, MILITARY MIL-T-22214 |
| Tube, Seamless | ASME SB466, ASTM B466, MILITARY MIL-T-16420 |
| Tube, U-Bend | ASME SB395, ASTM B395 |
| Tube, Welded | ASME SB543, ASTM B543 |
| Wire | MILITARY MIL-C-15726 |
Copper Nickel 70/30 Tube/Pipe Equivalent Grades:
| KS D5301
JIS H3300 |
C7150T |
| ASTM B111 | C71500 |
| ASTM B466 | C71500 |
| BS2871 {PART2} | CN107 |
| AS1752 | C71500 |
| DIN17664 | CuNi30Mn1FE |
| DIN 86019 WL2.1972 | |
| EEMUA 144 | |
| MIL-T-16420K | 771506 |
| EN12449 | CW354H |
Sizes Available
| SOLID BAR: | 1/4″ – 12″ diameter |
| PLATE: | up to 6″ thick |
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 | – |
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 |
Mechanical Properties
| Temper | Sect. Size | Cold Work | Type Min | Temp | Tensile Strength | YS 0.05% UL |
YS 0.02% Offset |
YS 0.005% Offset |
Elong. | RH B |
RH C |
RH F |
RH 30T |
VH 500 |
BH 500 |
BH 3000 |
Shear Strgth |
Fatigue Strgth |
Izod Impact Strgth |
| – | in. | % | – | F | ksi | ksi | ksi | ksi | % | B | C | F | 30T | 500 | 500 | 3000 | ksi | ksi | ft-lb |
| – | mm. | – | – | C | MPa | MPa | MPa | MPa | – | – | – | – | – | – | – | – | MPa | MPa | J |
| Flat Products | |||||||||||||||||||
| 20 | 1 | 68 | 55 | 20 | – | – | – | – | – | – | – | – | – | – | – | – | |||
| 20 | 25.4 | 0 | TYP | 20 | 379 | 138 | – | – | 45 | 35 | – | – | – | – | – | – | – | – | 0 |
| Rod | |||||||||||||||||||
| H02 | 1 | 68 | 75 | 70 | – | – | – | – | – | – | – | – | – | – | – | – | |||
| H02 | 25.4 | 20 | TYP | 20 | 517 | 483 | – | – | 15 | 80 | – | – | – | – | – | – | – | – | 0 |
| Tube | |||||||||||||||||||
| OS035 | 0 | 68 | 54 | – | – | – | – | – | – | – | – | – | – | – | – | – | |||
| OS035 | 0 | 0 | TYP | 20 | 372 | – | – | – | 45 | 36 | – | 77 | – | – | – | – | – | – | 0 |
| OS025 | 0 | 68 | 60 | 25 | – | – | – | – | – | – | – | – | – | – | – | – | |||
| OS025 | 0 | 0 | TYP | 20 | 414 | 172 | – | – | 45 | 45 | – | 80 | – | – | – | – | – | – | 0 |
Fabrication
| Joining Technique | Suitability |
| Brazing | Excellent |
| Butt Weld | Excellent |
| Capacity for Being Cold Worked | Good |
| Capacity for Being Hot Formed | Good |
| Coated Metal Arc Welding | Excellent |
| Gas Shielded Arc Welding | Excellent |
| Machinability Rating | 20 |
| Oxyacetylene Welding | Good |
| Seam Weld | Excellent |
| Soldering | Excellent |
| Spot Weld | Excellent |
Applications & Industries where our C71500 Copper Nickel 70/30 are used
Sunflex Metal Industries is a prominent supplier and exporter of C71500 Copper Nickel 70/30, widely used in marine applications, power generation, desalination plants, oil and gas industry, chemical processing, automotive components, military and defense, and heat exchangers.
Prominent Countries Where We Export C71500 Copper Nickel 70/30
Exporting C71500 Copper Nickel 70/30 to Singapore, Malaysia, Hongkong, Thailand, Indonesia, Taiwan. Other countries includes Australia, Afghanistan, Albania, Andorra, Austria, Bahrain, Bangladesh, Bhutan, Brunei, Belarus, Belgium, Bulgaria, Canada, Cambodia, China, Cyprus, Croatia, Czech Republic, Denmark, Estonia, Egypt, Finland, France, Germany, Greece, Georgia, Hungary, Iceland, Ireland, Italy, Iran, Iraq, Israel, Japan, Jordan, Kazakhstan, Kuwait, Kyrgyzstan, Lebanon, Latvia, Latin America, Liechtenstein, Lithuania, Luxembourg, Mexico, Malta, Moldova, Monaco, Maldives, Mongolia, Myanmar (Burma), Nepal, North Korea, Netherlands, Norway, Oman, Poland, Portugal, Palestine, Philippines, Qatar, Russia, Romania, Russia, San Marino, Serbia and Montenegro, Slovakia, Slovenia, Spain, Sweden, Switzerland, Saudi Arabia, South Korea, South Africa, Sri Lanka, Syria, Tanzania, Tajikistan, Thailand, Turkey, Turkmenistan, Ukraine, United States, United Kingdom, United Arab Emirates (UAE), Uzbekistan, Vietnam, Yemen
Send your requirement today. We respond to all enquiries within 4-5 business hours. You can email us your requirement on sales@sunflexfittings.com