Cu-Ni 70/30 (C71500)
Description
Cu-Ni 70/30 (C71500) – High Strength & Erosion-Resistant Marine Alloy
AL MOIZZIYAH TRADING CO. L.L.C supplies premium Cu-Ni 70/30 (Copper Nickel C71500), an advanced copper-nickel alloy designed for high strength, superior erosion resistance, and long-term durability in aggressive marine and industrial environments. With 70% copper and 30% nickel and added strengthening elements like iron and manganese, this alloy offers exceptional resistance to seawater corrosion, biofouling, velocity attack, and erosion–corrosion.
We supply Cu-Ni 70/30 sheets, plates, tubes, pipes, coils, flanges, and custom components across Bahrain, Kuwait, Oman, Qatar, Saudi Arabia, Iraq, and the United Arab Emirates.
Key Features
-
Higher strength than Cu-Ni 90/10 for more demanding applications.
-
Exceptional erosion corrosion resistance, ideal for high-velocity seawater.
-
Resistant to biofouling, stress corrosion cracking & pitting.
-
Maintains mechanical properties under elevated temperatures.
-
Excellent fabrication, welding, and forming characteristics.
High Performance
British-Standard Quality
Strong and Durable
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.
AL MOIZZIYAH TRADING CO. L.L.C 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.
AL MOIZZIYAH TRADING CO. L.L.C 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
AL MOIZZIYAH TRADING CO. L.L.C 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)
| Property | Cu-Ni 70/30 (C71500) |
|---|---|
| Chemical Composition | Cu 70%, Ni 30%, Fe 0.5–1.5%, Mn 0.5–1% |
| Standards | ASTM B122 / B466 / B467 / B171 / MIL-T-16420 |
| Density | 8.95 g/cmÂł |
| Tensile Strength | 380–520 MPa |
| Yield Strength | 150–205 MPa |
| Elongation | 30–45% |
| Hardness | 80–120 HB |
| Melting Range | 1170–1240°C |
| Electrical Resistivity | ~34 µΩ·cm |
| Corrosion Resistance | Excellent in seawater & brine |
| Erosion Resistance | Superior (High-Velocity Media) |
(Custom thicknesses, sizes & pressure ratings available.)
Why Buy From AL MOIZZIYAH TRADING CO. L.L.C
-
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?
đź“© Email: sales@moizziyah.com
đź“ž Phone: +971585242153
🌍 Serving: Bahrain, Kuwait, Oman, Qatar, Saudi Arabia, Iraq & the United Arab Emirates
Robert J. Hayes (verified owner) –
Exceptional lifting equipment! It enhances workplace safety and efficiency, reducing downtime and increasing productivity.