Cu Ni 70/30 Manufacturer, Supplier and Exporter in India
Cu Ni 70/30, Cu Ni 70/30 Manufacturer, Cu Ni 70/30 Supplier and Exporter, Cu Ni 70/30 Exporter
Copper Nickel 70/30 (UNS C71500) is a high-performance copper-nickel alloy containing 70% copper and 30% nickel, with small additions of iron and manganese to enhance its strength and corrosion resistance. Compared to 90/10 alloy, Cu-Ni 70/30 offers superior mechanical strength and is better suited for more aggressive environments, including high-velocity seawater, brine, and polluted marine atmospheres.
At Sumer Metal Industries Pvt. Ltd., we are a leading manufacturer, supplier, and global exporter of Copper Nickel 70/30 sheets, plates, and coils, produced in accordance with international standards such as ASTM B122, ASTM B171, ASME SB171, and EN equivalents. Our products are engineered to deliver long-lasting performance, high thermal stability, and exceptional corrosion resistance in both industrial and marine conditions.

The addition of up to 0.6–1.0% iron in Cu-Ni 70/30 significantly increases its resistance to impingement attack and erosion. This makes it particularly valuable for use in naval applications, desalination plants, and offshore oil & gas infrastructure, where materials are constantly exposed to fluctuating water flow and salinity levels. The alloy retains excellent mechanical properties even at elevated temperatures, with minimal loss of corrosion resistance.
All products from Sumer Metal Industries are subjected to rigorous quality control procedures, including chemical testing, mechanical testing, and third-party inspection. We provide full mill test certifications (MTC) and offer global export support with compliance to customer-specific packaging and documentation requirements. Our Cu-Ni 70/30 products are used across industries including power generation, desalination, shipbuilding, chemical processing, and heat transfer systems.