CuNi10Fe1Mn Copper Nickel
CuNi10Fe1Mn, 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.
Volume: 0
CuNi10Fe1Mn, 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.
Volume: 0
When seawater eats through carbon steel pipes in months, CuNi10Fe1Mn (90% Cu, 10% Ni, 1.4% Fe, 1% Mn) becomes your plant’s lifetime investment. This ‘marine brass’ forms self-healing oxide layers that laugh off salt, sand, and sulfides. UNS C70600-certified – it’s the backbone of desalination plants, offshore rigs, and naval systems where failure means million-dollar shutdowns.
TECH SPECS: ENGINEERED TO OUTLAST THE SEA
(ASTM B122 / UNS C70600 / DIN 2.0872)
| Property | CuNi10Fe1Mn | 316L Stainless | Aluminum Bronze |
|---|---|---|---|
| Composition | 90% Cu, 10% Ni, 1.4% Fe, 1% Mn | 16% Cr, 10% Ni, 2% Mo | 81% Cu, 11% Al, 5% Ni |
| Corrosion Rate | <0.025 mm/yr | 0.12 mm/yr | 0.05 mm/yr |
| Max Seawater Velocity | 5 m/s | 1.5 m/s | 3 m/s |
| Thermal Conductivity | 40 W/m·K | 15 W/m·K | 59 W/m·K |
| Biofouling Resistance | Excellent | Poor | Moderate |
| Weldability | Grade A (ASME IX) | Grade B | Grade C |
Certifications: ASTM B122. NORSOK M-630. KTA 1401. EN 12451
4 IRRESISTIBLE ADVANTAGES (Why Engineers Swear By It)
Seawater Immunity
“0.025 mm/yr corrosion in Arabian Gulf tests – protects Saudi SWCC desal plants for 30+ years.”
Anti-Fouling Secret Weapon
“Ni-Fe oxide layer deters barnacles – slashes cleaning costs for ship hulls by 60%.”
Impact Resistant
“Absorbs 50 J impact at -50°C – survives Arctic offshore ice collisions.”
Lifecycle Value
“Cuts replacement costs 80% vs. stainless steel in chlorinated seawater systems.”
KEY FEATURES: MARINE-GRADE INTELLIGENCE
Self-Repairing Surface: Ni-Fe-Mn oxide layer regenerates after mechanical damage
Cavitation Resistance: Withstands 100.000+ cycles in pump impellers (ASTM G32)
Low Magnetic Permeability: <1.05 μ – ideal for minesweeper hulls (MIL-DTL-24441)
Stress-Corrosion Immunity: Zero cracking in 10.000-hr ASTM G36 tests
PRECISION PROCESSING: METALLURGY THAT DEFIES SALT
1 Vacuum Induction Melting
“O₂ controlled to <10 ppm – prevents microporosity in condenser tubes.”
2 Hot Extrusion
“Seamless pipes up to 24" OD (ASTM B466) for subsea pipelines.”
3 Solution Annealing
“900°C rapid quench – optimizes Fe-Ni dispersion for uniform corrosion barrier.”
4 Pickling Passivation
“Nitric acid treatment jumpstarts protective film formation.”
DOMINANT APPLICATION FIELDS
| Industry | Critical Components | Performance Proof |
|---|---|---|
| Desalination | Heat exchanger tubes, evaporators | 40-year service in UAE plants |
| Offshore Oil/Gas | Seawater piping, valve trim | Zero leaks in North Sea platforms |
| Shipbuilding | Condensers, ballast systems | US Navy spec: MIL-C-15726 Rev F |
| Power Generation | Cooling water circuits | 50+ nuclear plants certified (KTA 1401) |
| Aquaculture | Fish cage nets, structural frames | Resists H₂S from organic waste |
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