Product Description
Technical Identifiers and Standards
| Field | Cupro Nickel 90/10 (C70600) | Cupro Nickel 70/30 (C71500) |
| Common Material Names | CuNi 90/10, Copper Nickel 10 Percent, C706 | Cupro Nickel 70/30, CuNi 70/30, Copper Nickel 30 Percent, C715 |
| UNS Number | C70600 / C70620 | C71500 / C71520 |
| Werkstoff Number | 2.0872 | 2.0882 |
| EN / European Standard | CuNi10Fe1Mn | CuNi30Mn1Fe |
| ISO Standard | CuNi10Fe1Mn | CuNi30Mn1Fe |
| ISRI Scrap Specifications | Code Dandy (Clean Copper-Nickel Solids) | Code Dandy (Clean Copper-Nickel Solids) |
| ASTM Standards | ASTM B111, ASTM B122, ASTM B171, ASTM B466 | ASTM B111, ASTM B122, ASTM B171, ASTM B466 |
| Material Family | Copper-Nickel Wrought Alloy | Copper-Nickel Wrought Alloy |
Scrap Classification and Value Drivers
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Nickel Content Valuation Premium: Cupro Nickel 70/30 commands a higher value than 90/10 due to its 29.00 to 33.00 percent Nickel content compared to 9.00 to 11.00 percent in 90/10.
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Low Lead and Carbon Impurity Limits: Strict tolerance limits for Lead (0.020 percent maximum) and Carbon (0.050 percent maximum) mean scrap must be kept completely clean for direct re-melting into marine tube heats.
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Strict Grade Segregation: Must be kept completely separate from Monel 400 (67Ni-30Cu), Monel K500, Admiralty Brass, Aluminum Bronze, Nickel Silver, and standard 300-series stainless steels.
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Magnetic Response: Completely non-magnetic in all standard commercial conditions.
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Cleanliness Requirements: Solid scrap should be free of carbon steel flanges, brass attachments, silver/braze joints, marine bio-fouling deposits, heavy oxidation scale, grease, and insulation.
Superior Alloy PropertiesCupro Nickel 70/30 Scrap stands out for its 70% copper and 30% nickel content, providing outstanding corrosion and erosion resistance. Meeting ASTM B122/B151 standards, it retains reliable structural and metallurgical qualities-vital for demanding applications in marine, chemical, and industrial settings. The density of 8.95 g/cm3 contributes to its mechanical resilience.
Sustainable RecyclabilityOne of the strongest advantages is its 100% recyclability. Cupro Nickel scrap is valued by fabricators and recyclers seeking eco-friendly materials for re-melting and alloy recovery. Its use supports resource conservation and waste reduction while delivering high-value recovery for a circular economy.
Versatile Forms & ApplicationsOffered as flat sheets and plates in varying lengths and thicknesses, this scrap adapts to the requirements of fabricators, manufacturers, and exporters. It's suited for marine fittings, desalination equipment, chemical plant fabrication, and more, owing to its durability and resistance to harsh environments.
FAQ's of Cupro Nickel Scrap Cupro Nickel 70/30 Scrap Cu-Ni Scrap:
Q: How is Cupro Nickel 70/30 Scrap typically used after collection?
A: After collection, Cupro Nickel 70/30 Scrap is mainly directed towards re-melting in foundries for alloy recovery or utilized by fabricators to manufacture new components in marine, chemical, and industrial applications.
Q: What are the main benefits of using Cupro Nickel 70/30 Scrap?
A: This scrap provides a reliable source of high-quality alloy, ensures excellent corrosion resistance, supports complete recycling, and helps lower raw material costs while maintaining metallurgical integrity.
Q: Where can this scrap be used within industry sectors?
A: Industries such as marine engineering, chemical processing, desalination plants, and heavy industrial fabrication frequently rely on Cupro Nickel 70/30 Scrap due to its resistance to corrosion and biofouling.
Q: What is the process for recycling Cupro Nickel 70/30 Scrap?
A: The recycling process involves collecting, sorting, cleaning, and re-melting the scrap to recover valuable copper-nickel alloy, which is then used to create new plates, sheets, or custom components.
Q: When is Cupro Nickel 70/30 Scrap preferred over other scrap metals?
A: It is preferred when enhanced durability, resistance to seawater, and protection against chemical attack are required-making it ideal for applications like heat exchangers, seawater piping, and condenser tubes.
Q: How is the material packaged and delivered to buyers?
A: Cupro Nickel 70/30 Scrap is prepared for shipment either bundled or loose, depending on customer requirements, and sold by weight to accommodate varying project scales and industrial needs.