C71640, also known as Copper-Nickel 70/30 or CuNi 70/30, is a high-performance copper-nickel alloy that consists of approximately 70% copper and 30% nickel, with small amounts of iron and manganese. This alloy is widely used for its excellent corrosion resistance, particularly in marine and seawater environments. Like other copper-nickel alloys, C71640 is known for its durability, resistance to biofouling, and good mechanical properties, making it suitable for a variety of industrial applications.
Chemical Composition
Copper (Cu): 66.5 - 70%
Nickel (Ni): 29 - 33%
Iron (Fe): 0.4 - 0.8% (for added strength and improved resistance to seawater corrosion)
Manganese (Mn): 1.0% max
Other Elements: Trace amounts of sulfur, phosphorus, carbon, and silicon
