Cu-Ni 70/30 (C71500)

Cu-Ni 70/30 (C71500)

Copper Nickel 70/30 (C71500) is a high-performance marine alloy containing 70% copper, 30% nickel, and small additions of iron and manganese for enhanced strength and corrosion resistance. Known for its excellent resistance to seawater attack, erosion, cavitation, and marine fouling, Cu-Ni 70/30 is widely used in desalination plants, shipbuilding, offshore platforms, heat exchangers, and high-pressure piping systems.

Compared to Cu-Ni 90/10, C71500 offers superior mechanical strength, higher resistance to impingement attack, and better performance in fast-flowing seawater, making it the preferred choice for harsh marine environments.

Saifex Industries supplies Cu-Ni 70/30 in various forms including plates, sheets, tubes, pipes, coils, bars, fittings, and flanges, all conforming to global standards such as ASTM B122, B151, B466, B552, B467 & MIL-T-16420K.

This alloy offers exceptional resistance to:

• High-velocity seawater & brine flow

• Biofouling and microorganism attack

• Chloride pitting & crevice corrosion

• Stress corrosion cracking

• Erosion from suspended solids

With its long service life and robust performance, Cu-Ni 70/30 is the material of choice for heat exchangers, seawater handling systems, marine hardware, and critical components exposed to harsh coastal environments.

Saifex Industries serves clients in Bahrain, Kuwait, Oman, Qatar, Saudi Arabia, Iraq, and the UAE, providing high-quality copper-nickel alloys engineered for reliability and longevity.

Product Variants & Global Supply References

Saifex Industries supplies Cu-Ni 70/30 in multiple forms:

• C71500 Cu-Ni 70/30 Sheets & Plates

• Copper Nickel 70/30 Tubes & Pipes (ASTM B466 / B552)

• 70/30 Cu-Ni Coils & Strips

• C71500 Rods, Bars & Forged Components

• 70/30 Cu-Ni Pipe Fittings & Flanges

• Copper Nickel 70/30 Heat Exchanger Tubes

• C71500 Condenser Tubes

• Marine-Grade Cu-Ni 70/30 Fasteners & Hardware

• Custom Fabricated Cu-Ni Components

All products delivered with mill test certificates (MTCs) and international compliance.

Uses of the Product

• Seawater piping systems & cooling circuits

• Heat exchangers & condensers

• Offshore and marine construction

• Desalination plant tubing & evaporators

• Hydraulic lines & seawater risers

• Pump components, valve parts & marine fasteners

Applications

• Marine & Shipbuilding Industries

• Offshore Oil & Gas Platforms

• Desalination & Water Treatment Plants

• Power Plants (Cooling Water Systems)

• Petrochemical & Refinery Heat Exchangers

• HVAC & Industrial Cooling Modules

Technical Specifications (Typical)

(Custom thicknesses, sizes & pressure ratings available.)

Why Buy From Saifex Industries

• Leading Cu-Ni 70/30 (C71500) supplier, exporter & stockist in GCC & Iraq.

• Marine-grade materials engineered for extreme seawater exposure.

• Large inventory of tubes, plates, sheets, coils, and fittings.

• Fast delivery across Bahrain, Kuwait, Oman, Qatar, Saudi Arabia, Iraq & UAE.

• Compliance with major global standards (ASTM, ASME, MIL Spec).

• Custom fabrication available for OEM and project requirements.

FAQs

Q1. What is the difference between Cu-Ni 70/30 and 90/10?
Cu-Ni 70/30 has higher nickel content, offering better strength and superior erosion resistance, ideal for more demanding seawater systems.

Q2. Is Cu-Ni 70/30 suitable for high-velocity seawater?
Yes — it is specifically designed for high-velocity, sand-laden, and turbulent seawater environments.

Q3. What forms do you supply?
Sheets, plates, coils, tubes, pipes, bars, fittings, flanges, and custom machined components.

Q4. Does Cu-Ni 70/30 resist biofouling?
Yes — it naturally resists marine fouling, reducing maintenance costs.

Q5. Which industries commonly use C71500?
Marine, desalination, offshore oil & gas, power plants, and petrochemical facilities.

Q6. Do you supply across GCC & Iraq?
Yes — we supply Cu-Ni 70/30 to Bahrain, Kuwait, Oman, Qatar, Saudi Arabia, Iraq & the UAE.

Call to Action

Looking for a reliable Cu-Ni 70/30 (C71500) marine alloy supplier?
📩 Email: sales@copaltitemena.com
📞 Phone: +971 58 535 2330

🌍 Serving: Bahrain, Kuwait, Oman, Qatar, Saudi Arabia, Iraq & the United Arab Emirates