CuNi 90/10 Copper Nickel Offers excellent corrosion resistance, especially in marine salt water environments. The main, wrought copper-nickel alloys chosen for sea water service contain 10 or 30 percent nickel. They also have important additions of iron and manganese which are necessary to maintain good corrosion resistance.
Volume: 0
While lesser metals dissolve like sugar in seawater, CuNi 90/10 stands unshaken. This 90% copper-10% nickel alloy is the silent guardian of ships, offshore rigs, and desalination plants – laughing at salt spray, shrugging off barnacles, and outlasting vessels it protects.
TECH SPECS THAT DEFY THE SEA (UNS C70600 / DIN 2.0872)
| Property | CuNi 90/10 | Carbon Steel (For Context) |
|---|---|---|
| Composition | 88-90% Cu, 9-11% Ni, 1% Fe | 99% Fe |
| Corrosion Rate | 0.025 mm/year in seawater | 0.5-1.5 mm/year |
| Thermal Conductivity | 40 W/m·K | 45 W/m·K |
| Tensile Strength | 350-450 MPa | 370-480 MPa |
| Max Service Temp | 400°C | 350°C (prone to scaling) |
5 REASONS MARINE ENGINEERS SWEAR BY 90/10
Corrosion Assassin
“Survives 20+ years in tropical seawater without pitting – outperforms stainless steel 316L in splash zones. Salt? More like a mild seasoning.”
Biofouling Bodyguard
“Copper ions naturally repel mussels/algae. Save $500k/year per tanker on hull scraping dives.”
Chemical Warfare Veteran
“Takes sulfuric acid spills, ammonia bursts, and chlorine injections without flinching. Perfect for scrubber systems.”
Weldability Wizard
“No pre-heat needed, no post-weld cracks. Even your newest apprentice can join it flawlessly.”
Lifetime Cost Crusher
“Pay 3x upfront vs. steel → Save 12x on replacements over 25 years. CFOs call it ‘the annuity alloy’.”
HOW WE FORGE SEA IMMORTALITY
Step 1: Vacuum Induction Melting
“Raw metals fused in oxygen-free chambers – no impurities invited to this party.”
Step 2: Hot Extrusion
“Shaped at 900°C into seamless tubes/plates with grain structures tighter than submarine hatches.”
Step 3: Cold Pilger Rolling
“Wall thickness precision ±0.05mm – crucial for high-pressure seawater lines.”
Step 4: Solution Annealing
“Quenched to lock in corrosion-fighting microstructure. Think of it as metallurgical vaccination.”
WHERE IT RULES THE WAVES
| Industry | Critical Applications | Why 90/10 Wins? |
|---|---|---|
| Shipbuilding | Condenser tubes, hull sheathing | Slashes biofouling fuel costs 15% |
| Offshore Oil | Seawater cooling pipes, ballast systems | Zero crevice corrosion in welds |
| Desalination | Heat exchanger tubes, evaporator bodies | Handles brine 10x longer than titanium |
| Power Plants | Saltwater intake condensers | 30-year service life (vs. 8 for steel) |
| Aquaculture | Fish cage frames, water exchangers | Non-toxic to marine life |
Please Feel free to give your inquiry in the form below. We will reply you in 24 hours.
Products
Phone
