High Quality Copper Nickel Sheets & Plates

Premium Copper Nickel 70/30 & 90/10 Sheets & Plates by Ratnadeep Steel & Engg.

Ratnadeep Steel & Engg. Co. is a trusted manufacturer, exporter, and supplier of high-quality Copper Nickel Sheets and Plates in both 70/30 and 90/10 grades. Based in Mumbai, India, we specialize in delivering premium Copper-Nickel alloy products engineered for exceptional corrosion resistance, outstanding strength, and long service performance—especially in seawater and marine environments. Our Copper Nickel plates are produced using advanced alloy compositions enriched with copper, nickel, and strengthening elements such as iron and manganese, ensuring superior resistance to biofouling, stress corrosion cracking, and erosion in flowing seawater conditions.

Cu-Ni 90/10 (90% Copper, 10% Nickel) and Cu-Ni 70/30 (70% Copper, 30% Nickel) are globally recognized for their excellent corrosion resistance, thermal stability, and durability. 90/10 grade offers outstanding fabricability, good mechanical strength, and cost-effectiveness, making it widely suitable for general marine and heat exchanger applications. 70/30 grade, with its higher nickel content, provides superior strength and enhanced resistance to fast-moving seawater, high-pressure systems, and aggressive environments—making it ideal for demanding naval, offshore, and industrial applications. These alloys also exhibit excellent weldability, formability, and anti-microbial properties, making them reliable for various critical engineering uses.

At Ratnadeep Steel & Engg. Co., every Copper Nickel Sheet and Plate undergoes stringent quality inspections to ensure full compliance with international standards and specific client requirements. We supply Cu-Ni 70/30 and Cu-Ni 90/10 Sheets and Plates in a wide range of thicknesses, sizes, tempers, and custom configurations to suit diverse marine, industrial, and engineering applications. With our commitment to precision, quality, and timely delivery, we continue to be a preferred global supplier of high-performance Copper Nickel products for corrosion-resistant, long-lasting, and technically demanding environments.

• Copper Nickel Sheets & Plates

• CuNi 70/30 Sheets & Plates
• CuNi 90/10 Sheets & Plates

Our Copper Nickel 70/30 & 90/10 Sheets & Plates are available in a variety of size, depending on the specific demands of your project.