C71500 Copper Nickel
Sheet: ASTM B122/B122M, ASTM B171/B171
Rod: ASTM B151/B151M
Tube: ASTM B111/ B111M, ASTM B359 / B359M, ASTM B395 / B395M, ASTM B466 / B466M, ASTM B467 / B467M, ASTM B543, ASTM B552, ASTM B956
What is C71500 copper-nickel alloy?
C71500 copper-nickel alloy, commonly known as "70-30 copper-nickel alloy," is a copper-based alloy composed of 70% copper and 30% nickel. Due to its high nickel content, this alloy possesses exceptional corrosion resistance, particularly in harsh environments like seawater. Compared to other metals, C71500 copper nickel offers significant advantages in resistance to chloride ion corrosion and microbial corrosion, making it an irreplaceable material choice in fields such as marine engineering, petrochemicals, and energy equipment.
Key Features
Excellent Corrosion Resistance
In marine and saltwater environments, C71500 copper nickel exhibits exceptional corrosion resistance, particularly in the presence of chloride ions. Even in prolonged contact with seawater, the alloy remains stable and is not susceptible to electrochemical corrosion.
Excellent High-Temperature Resistance
C71500 copper-nickel alloy exhibits outstanding high-temperature oxidation resistance, maintaining its properties in environments exceeding 500°C. This makes it an ideal material for high-temperature applications, such as chemical equipment and power plants.
Excellent Mechanical Properties
This copper-nickel alloy possesses excellent mechanical strength and machinability, meeting the demands of a wide range of industrial applications. Even under harsh operating conditions, C71500 maintains excellent structural integrity and is resistant to brittle fracture or deformation.
Specifications
|
Property |
Value/Description |
|
Grade |
C71500 (CuNi30Fe) |
|
Standards |
ASTM B122, ASTM B171, ASTM B466, ASTM B467, EN 12451, DIN 17664 |
|
Forms |
Plate, Sheet, Tube, Bar, Forging, Custom Profiles |
|
Size Range |
Customizable (standard and non-standard sizes available) |
|
Surface Finish |
Pickled, Polished, Protective Coating (upon request) |
Chemical Composition
|
Element |
Content (%) |
|
Copper (Cu) |
65.0 - 69.0 |
|
Nickel (Ni) |
29.0 - 33.0 |
|
Iron (Fe) |
0.40 - 1.0 |
|
Manganese (Mn) |
0.40 - 1.0 |
|
Zinc (Zn) |
≤ 1.0 |
|
Lead (Pb) |
≤ 0.05 |
|
Other Impurities |
≤ 0.5 |
Mechanical Properties
|
Property |
Value |
|
Tensile Strength |
≥ 370 MPa |
|
Yield Strength (0.2% offset) |
≥ 125 MPa |
|
Elongation (% in 50mm) |
≥ 30% |
|
Hardness (Rockwell B) |
50 - 75 HRB |
|
Density |
8.94 g/cm³ |
Typical Applications
Due to its excellent chemical properties and favorable processing, C71500 copper nickel is widely used in the following fields:
Marine Engineering
C71500 alloy is the preferred material for equipment such as seawater condensers, ship piping, heat exchangers, and desalination plants due to its excellent corrosion and erosion resistance.
Chemical Equipment
Acid-resistant equipment and pipes, valves, and other components used in salt spray environments due to its excellent resistance to acidic media.
Energy Industry
Piping systems and high-temperature heat exchange equipment in nuclear power plants due to its excellent high-temperature oxidation resistance.
Why Choose Us?
We provide complete C71500 copper nickel Test Certificates (MTC) with Full Material Traceability, ensuring every batch meets the required chemical composition and mechanical properties. Third-party inspections (SGS, TÜV) and ultrasonic testing (UT) are available, providing undeniable quality documentation.
We have supplied over 1,000 clients across Russia, Turkey, Italy, Poland, the USA, India, Mexico, France, and the UK with consistent quality products. Our 85% client retention rate with repeat orders demonstrates our excellence in product quality, delivery reliability, and customer service.
From raw material procurement to final product delivery, every manufacturing step undergoes strict quality control processes, ensuring defect-free products that meet dimensional tolerances and performance requirements.
We have participated in numerous international large-scale marine, energy, and infrastructure projects, demonstrating robust project supply chain management and on-time delivery capabilities for both prototype samples and bulk orders.
We provide material selection, fabrication, and welding technical support, along with custom manufacturing according to client drawings or specifications, helping optimize your procurement and operational costs.
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If you're looking for a high-quality, trustworthy C71500 copper nickel supply, contact us today for current pricing and technical documentation. Our team will provide personalized professional support to ensure you receive the most suitable product solution.
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