Premier Cupro Nickel 70 / 30 Sheet & Plate Stockists in Mumbai: High-Performance Marine Alloy Soluti

Introduction: Engineering Durability in Marine & Industrial Environments

When designing marine infrastructure, heat exchangers, and seawater desalination systems that require exceptional resistance to biofouling, stress corrosion cracking, and high-velocity turbulent marine conditions, choosing the right material is paramount. As leading Cupro Nickel 70 / 30 Sheet & Plate Stockists in Mumbai, Chhajed Steel Limited maintains comprehensive, ready-to-dispatch inventories of high-grade copper-nickel alloy plates engineered to withstand severe aqueous environments. Certified to rigorous international specifications such as ASTM B122 and ASME SB122, our Cupro Nickel 70/30 (C71500) products merge superior mechanical strength with outstanding corrosion resistance for critical industrial and maritime applications worldwide.

For marine engineers, heat exchanger manufacturers, and project managers searching for dependable stockists, sourcing certified Cupro Nickel 70/30 sheets and plates from ready stock guarantees immediate availability, minimized project downtime, long-term operational reliability, and superior resistance to marine biofouling.

What is Cupro Nickel 70/30 Sheet & Plate?

Cupro Nickel 70/30 (UNS C71500, also known as Copper-Nickel 70/30) is a high-performance alloy composed of approximately 70% copper and 30% nickel, complemented by controlled additions of iron and manganese. Compared to 90/10 alloys, the higher nickel content in 70/30 provides enhanced mechanical strength, greater resistance to high-velocity turbulent water, and superior performance in aggressive acid and salt environments.

• Superior Marine Corrosion Resistance: Highly resistant to seawater corrosion, stress corrosion cracking, and localized pitting across diverse aquatic conditions.
• Natural Biofouling Resistance: The inherent copper content naturally deters the attachment and growth of marine organisms like barnacles and algae on exposed surfaces.
• High Mechanical Strength: Offers excellent tensile and yield strength retention at elevated operating temperatures compared to standard copper alloys.
• Exceptional Fabricability: Retains outstanding cold and hot working characteristics, making it easy to weld, form, and machine into complex components.

Stockist Size Range & Technical Parameters

Available Sheet & Plate Dimensions in Stock

• Thickness Range: 0.5 mm to 100 mm (custom gauges available upon request)
• Width Range: 1,000 mm to 3,000 mm
• Length Range: 2,000 mm to 12,000 mm (or custom cut-to-length / sheared profiles)
• Delivery Conditions: Annealed, hard, half-hard, or hot-rolled / cold-rolled to match specific fabrication needs.

Controlled Chemical Composition

Elemental Limits (ASTM B122 / UNS C71500)

• Copper (Cu): Balance ()
• Nickel + Cobalt (Ni + Co):
• Iron (Fe):
• Manganese (Mn):
• Lead (max): 0.05%
• Zinc (max): 0.50%
• Carbon (max): 0.05%
• Sulfur (max): 0.02%

Mechanical Properties

Property Parameter

Metric Value

Imperial Value

Tensile Strength (min)

380 MPa

55 ksi

Yield Strength (0.2% offset, min)

150 MPa

22 ksi

Elongation (min in 50 mm)

30%

30%

Major Industrial & Marine Applications

• Marine & Shipbuilding: Seawater piping systems, hull plating for specialized vessels, salt-water intake screens, and sea chests.
• Heat Exchangers & Condensers: Tube sheets, condenser plates, evaporator tubes, and water box liners in power plants and desalination facilities.
• Offshore Oil & Gas: Subsea equipment, splash-zone protection, and process vessels handling sour gas and brine mixtures.
• Desalination Plants: Flash chamber walls, brine heaters, and multi-stage flash distillation equipment.

Global Stockist Supply, Packaging & Quality Assurance

As trusted stockists based in Mumbai, India, Chhajed Steel Limited distributes these high-performance Cupro Nickel 70/30 sheets and plates locally across industrial centers and to worldwide markets including the Middle East, Southeast Asia, Europe, and the Americas.

• Export-Ready Packaging: Carefully interleaved, packed in robust wooden crates or pallets, and secured with moisture-barrier wrapping to prevent surface damage or oxidation during transit.
• Complete Documentation & Traceability: Fully supported by Mill Test Certificates (MTC) conforming to EN 10204 3.1/3.2, third-party inspection (TPI) reports, and comprehensive heat traceability.

Chhajed Steel and Alloys is the largest manufacturer, supplier and stockist of Plates to various countries like Saudi Arabia, Kuwait, Qatar, Oman, Yemen, Uae, Iran, Turkey.