FERRY Alloy,ASTM B 267; DIN 17644; Werkstoff Nr. 2.0842; AFNOR NFE 18.001, Ferry Nickel-Copper Alloy，1

### **Product Introduction: Copper-Nickel Alloy UNS C70600 (Commonly Referred to as FERRY Alloy)** **Copper-Nickel Alloy UNS C70600**, often historically or regionally known as **FERRY Alloy**, is a 90-10 copper-nickel alloy renowned for its excellent resistance to seawater corrosion and macrofouling. It is a cost-effective and highly reliable material, offering a superb balance of corrosion resistance, fabricability, and thermal conductivity. The addition of iron and manganese enhances its resistance to impingement attack and erosion-corrosion in high-flow velocity environments. This alloy is a cornerstone material for marine engineering, extensively used in condensers, heat exchangers, and piping systems that handle seawater, brackish water, and fresh water. --- ### **International Standards & Material Equivalents** This alloy is standardized under all major international specifications, with the provided designations being key European standards. | Standard Type | Standard Number | Designation | | :--- | :--- | :--- | | **UNS (USA)** | **C70600** | Copper-Nickel Alloy, 90-10 | | **ASTM (USA)** | **B267** | Specification for Wire for Thermocouples and Electrical Heating (Specific product form) | | **ASTM (USA)** | B111 | Seamless Condenser and Heat-Exchanger Tubes | | **DIN (Germany)** | **17644** | CuNi10Fe | | **Werkstoff Nr.** | **2.0842** | **2.0842** | | **AFNOR (France)** | **NFE 18-001** | CuNi10Fe | | **EN (Europe)** | EN 12452 | CuNi10Fe1Mn | | **JIS (Japan)** | H3300 | C7060 | > **Note:** The name "FERRY Alloy" is a common industry name. The technically accurate and globally recognized name is **90-10 CuNi or UNS C70600**. **ASTM B267** specifically covers wire forms of this alloy, while other standards like ASTM B111 cover its more common tubular forms. --- ### **Chemical Composition** The composition is carefully balanced to optimize corrosion resistance and mechanical properties, with iron being a critical element. | Element | Content (%) | | :--- | :--- | | **Copper (Cu)** | Balance | | **Nickel (Ni)** | 9.0 - 11.0 | | **Iron (Fe)** | 1.0 - 2.0 | | **Manganese (Mn)** | 0.5 - 1.0 | | **Zinc (Zn)** | 0.5 max. | | **Lead (Pb)** | 0.02 max. | | **Carbon (C)** | 0.05 max. | | **Other Impurities** | 0.1 max. | --- ### **Physical Properties** The physical properties of CuNi10Fe1Mn make it an excellent material for heat transfer and marine applications. | Property | Value | | :--- | :--- | | **Density** | 8.94 g/cm³ (0.323 lb/in³) | | **Melting Point (Liquidus)** | 1100 - 1140 °C (2010 - 2080 °F) | | **Thermal Conductivity** | 45 W/m·K (at 20°C) | | **Electrical Resistivity** | 0.20 μΩ·m (at 20°C) | | **Modulus of Elasticity** | 135 GPa (20 x 10⁶ psi) | | **Coefficient of Thermal Expansion** | 17.1 μm/m·°C (20-300°C) | | **Magnetic Response** | Essentially non-magnetic | --- ### **Mechanical Properties (Typical for Annealed Condition)** Properties vary with product form (tube, sheet, wire) and temper. | Property | Value (Annealed) | | :--- | :--- | | **Tensile Strength** | 310 - 380 MPa (45 - 55 ksi) | | **Yield Strength (0.2% Offset)** | 110 - 170 MPa (16 - 25 ksi) | | **Elongation** | 35% - 45% | | **Hardness (Rockwell B)** | 40 - 65 HRB | --- ### **Key Characteristics & Advantages** 1. **Excellent Seawater Corrosion Resistance:** Highly resistant to general corrosion, pitting, crevice corrosion, and stress-corrosion cracking in seawater and brackish water. 2. **Good Biofouling Resistance:** The copper content provides inherent resistance to the attachment of marine organisms, reducing maintenance costs. 3. **Superior Erosion-Corrosion Resistance:** The iron content is crucial for forming a protective surface film that provides outstanding resistance to high-velocity, turbulent water, making it ideal for condenser tubes. 4. **High Thermal Conductivity:** Offers excellent heat transfer capabilities, which is essential for condenser and heat exchanger applications. 5. **Excellent Fabricability:** Can be easily welded, brazed, soldered, and formed using standard techniques for copper alloys. --- ### **Product Applications** The primary use of UNS C70600 is in systems that handle seawater and other corrosive water. * **Marine Engineering:** * **Seawater condenser and heat exchanger tubes** in ships and offshore platforms. * Desalination plant tubing and piping systems. * Shipboard piping for firefighting, ballast, cooling, and sanitary systems. * **Power Generation:** * **Condenser tubes** and feedwater heater tubes in coastal and nuclear power stations. * **Oil & Gas:** * Offshore platform piping for seawater cooling and water injection. * Ballast water piping. * **Industrial & Chemical Processing:** * Heat exchangers for corrosive process streams. * Piping and vessels for handling brines, chlorides, and other non-oxidizing chemicals. ### **Summary** **Copper-Nickel Alloy UNS C70600 (Werkstoff 2.0842)**, historically known as FERRY Alloy, is a fundamental 90-10 copper-nickel material prized for its **exceptional resistance to seawater corrosion and erosion**. Governed by standards such as **DIN 17644** and **ASTM B267**, it provides a cost-effective and highly reliable solution for heat exchangers, condensers, and piping systems in marine and industrial environments. Its excellent fabricability and biofouling resistance make it a globally recognized and specified alloy for ensuring long service life in the world's most challenging water-based applications.

Packing of Standard Packing: Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Solutions are packaged in polypropylene, plastic or glass jars up to palletized 3296 gallon liquid totes Special package is available on request.