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, 90-10 Cu-Ni | 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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Copper and Nickel Base Valuation: Cupro Nickel 90/10 is valued primarily on its high Copper content (approx 86.5 to 88.5 percent) plus a stable 9.00 to 11.00 percent Nickel addition.
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Strict Impurity Limits: Extremely low tolerance for Lead (0.020 percent maximum) and Carbon (0.050 percent maximum) requires clean, unmixed scrap for direct re-melting into seamless tubing heats.
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Grade Segregation: Must be kept completely separate from Cupro Nickel 70/30 (which commands a higher Nickel premium), Monel 400, Admiralty Brass, Aluminum Bronze, Nickel Silver, and stainless steel.
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Iron Addition Purpose: Contains 1.00 to 1.80 percent Iron added for enhanced velocity and impingement corrosion resistance in seawater environments; iron levels must be preserved without tramp steel contamination.
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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 growth, scale, grease, and insulation.
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Common Scrap Forms and Sources
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Solid Scrap: Condenser tube cut-offs, heat exchanger tubes, seawater piping remnants, marine hull plate offcuts, flange drops, valve bodies, fittings, sheet trimmings.
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Turnings / Borings: Machining chips, millings, and turnings from marine valve and fitting manufacturing (requires thorough degreasing, drying, and magnetic screening for tramp iron).
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Industrial Origin: Naval and defense shipbuilding, commercial maritime vessels, coastal power plant condensers, seawater desalination plants, offshore oil and gas platforms, and hydraulic brake tubing.
Versatile Application in Metal RecoveryCupro Nickel 90/10 Scrap is widely utilized in foundries as a premium raw material for recycling and metal recovery. The robust blend of copper and nickel ensures that the recovered alloys exhibit reliable corrosion resistance and consistent metal purity, supporting industries such as marine, power generation, and chemical processing.
Fully Recyclable and Environmentally FriendlyThis scrap form is 100% recyclable, making it an environmentally responsible choice for manufacturers and fabricators. By integrating secondary materials such as oxidized sheet or plate scrap, companies can help conserve natural resources while reducing the overall environmental footprint of metal production.
Supplied to Meet Diverse Industry NeedsSuppliers, exporters, and retailers across India offer Cupro Nickel 90/10 Scrap in various sizes and packaging options. Whether loose or bundled, quantities and forms can be tailored according to client specifications, ensuring efficient handling and seamless integration into existing foundry and recycling processes.
FAQ's of Cupro Nickel Scrap, Cupro Nickel 90/10 Scrap Cu-Ni Scrap:
Q: How is Cupro Nickel 90/10 Scrap typically used in industry?
A: Cupro Nickel 90/10 Scrap is mainly used as a raw material in foundries for recycling and metal recovery. Its high corrosion resistance and non-magnetic properties make it ideal for manufacturing new components in marine, engineering, and chemical applications.
Q: What is the process for recycling Cupro Nickel 90/10 Scrap?
A: The recycling process involves collecting and sorting the scrap sheets or plates, removing impurities if necessary, and then melting the material at temperatures between 1150C and 1200C. This ensures the recovery of high-grade alloy suitable for new production.
Q: When should Cupro Nickel 90/10 Scrap be considered over other raw materials?
A: It is best chosen when high corrosion resistance, non-magnetic behavior, and guaranteed purity (minimum 99% combined metal content) are required, especially in sectors exposed to harsh environments or requiring durable, long-lasting materials.
Q: Where can buyers source Cupro Nickel 90/10 Scrap in India?
A: Cupro Nickel 90/10 Scrap is available throughout India from manufacturers, exporters, dealers, traders, and suppliers. It is commonly supplied as loose or bundled sheets/plates, depending on customer requirements.
Q: What are the benefits of using oxidized, used/secondary Cupro Nickel scrap?
A: Using oxidized, used/secondary Cupro Nickel scrap supports sustainable manufacturing by lowering environmental impact. It provides high-quality alloy with excellent corrosion resistance while offering cost advantages due to its recycled nature.
Q: Is the surface oxidation on Cupro Nickel Scrap a concern for recyclers?
A: No, surface oxidation is a normal condition for used scrap and is typically removed or handled during the melting process, ensuring that the end product retains the desired purity and properties.