Cupro Nickel 70/30, a 70% copper and 30% nickel alloy, includes essential additions of iron and manganese, which enhance its corrosion resistance and mechanical strength compared to the 90/10 copper-nickel alloy. This composition makes it highly suitable for demanding applications, particularly in environments involving fast-flowing seawater (up to 4.5m/s) and polluted seawater, where its corrosion resistance is significantly improved. The alloy’s enhanced durability makes it a preferred choice for various marine and industrial applications, ensuring long-term performance and reliability.

Cupro Nickel 70/30 is readily cold-worked, fabricated, and welded with minimal special material considerations, making it an efficient and versatile material for various engineering applications. The most common specifications covering this alloy are CN107 and C71500, with the DEF STAN 02-879 Composition B standard offering stricter controls on impurities and mechanical properties along with a mandatory impact value. This alloy is particularly valued for its ease of manufacturing and excellent performance in harsh environments, ensuring its widespread use in the marine, offshore, and chemical processing industries.