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DOMADIA™ CuNi30Mn1FeTi (UNS C71500): The Cupronickel Alloy Built to Conquer Corrosion
“So… tell me where it hurts,” said the engineer to the cupronickel metal pipe.
“Everywhere,” whispered the corroded alloy.
Let’s face it—most metals have trust issues when it comes to saltwater. The moment they meet seawater, things go downhill: corrosion, cracking, and dramatic breakdowns. It’s a toxic relationship.
But not for DOMADIA™ CuNi30Mn1FeTi. This copper-nickel alloy doesn’t just survive the relationship—it thrives in it, setting a new standard for resilience in marine and industrial applications.
What Is DOMADIA™ CuNi30Mn1FeTi?
DOMADIA™ CuNi30Mn1FeTi is a high-performance cupronickel alloy, conforming to UNS C71500 and DIN 2.0822. It’s part of the 70/30 copper-nickel family—comprising roughly 70% copper and 30% nickel, with small yet powerful additions of manganese, iron, and titanium to enhance strength, weldability, and corrosion resistance.
Engineered to perform where other alloys fail, this material is purpose-built for use in marine, power, chemical, and desalination industries.
Chemical Composition
| Element | Content (%) |
|---|---|
| Copper (Cu) | ~70 |
| Nickel (Ni) | ~30 |
| Manganese (Mn) | 0.5–1.0 |
| Iron (Fe) | 0.4–0.8 |
| Titanium (Ti) | 0.05–0.15 |
| Others | < 0.1 |
This composition makes it stable in extreme environments—especially where chloride-induced corrosion is a threat.
Fabrication & Heat Treatment
- Machinability: Rated at 20. Standard but manageable for an alloy of this resilience.
- Weldability: Compatible with soldering, brazing, arc welding, spot welding, and more.
- Hot Working: Best performed at 927–1038°C (1700–1900°F).
- Cold Working: Excellent, especially for precision components.
- Annealing Range: 649–816°C (1200–1500°F) for stress relief and ductility recovery.
Technical Properties
| Property | Value |
|---|---|
| Density | ~8.94 g/cm³ |
| Melting Range | 1170–1240°C |
| Electrical Conductivity | 5–10% IACS |
| Tensile Strength | 310–450 MPa |
| Yield Strength | 105–200 MPa |
| Elongation | 20–40% |
| Hardness | 70–110 HV |
Forms Available
DOMADIA™ CuNi30Mn1FeTi is available in:
Custom shapes and cuts available upon request.
Applications Across Industries
- Condensers & Heat Exchangers
Used in marine, power, and industrial cooling systems that rely on seawater. - Seawater Piping Systems Ideal for offshore and shipboard pipelines due to exceptional corrosion resistance.
- Pump Impellers, Valves & Flanges
Performs reliably in saltwater environments with high strength and resistance to erosion. - Desalination Plants
Applied in brine heaters, evaporators, and heat recovery units in both MSF and MED systems. - Marine Hardware & Hull Components
Used in fittings, sheathing, and hardware for boats and naval equipment. - Power Generation Facilities
Essential for condensers, cooling loops, and water circulation systems in thermal and nuclear plants. - Chemical Processing Equipment
Suitable for components exposed to acidic or chloride-rich environments. - Aquaculture & Sanitation Systems
Used in fish farming cages and antimicrobial surfaces due to biofouling resistance. - Firewater & Utility Water Systems
Durable in various water qualities including brackish and high-salinity types.
Standards & Equivalents
- UNS: C71500
- DIN: 2.0822
- Type: Cupronickel 70/30 equivalent
- ASTM: B111, B466, B122
- ISO/EN: EN 12451, EN 1652
Why Choose DOMADIA™ CuNi30Mn1FeTi?
Trusted Cupronickel Standard
Equivalent to UNS C71500, meeting global specs like DIN 2.0822 and ASTM B111.
Outstanding Corrosion Resistance
Built to thrive in seawater, brine, and harsh industrial environments.
Strong & Durable
High mechanical strength and excellent wear resistance for long service life.
Excellent Workability
Easy to weld, hot work, and cold form—ideal for complex fabrications.
Thermal & Electrical Efficiency
Stable under extreme heat and suitable for high-performance cooling systems.
Non-Magnetic & Biofouling Resistant
Perfect for marine, naval, and hygiene-sensitive applications.
Ready to Upgrade Your System?
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Talk to: Kairav Domadia | Aadil Domadia | Er.Pankaj Domadia | Pragati Sanap | Pooja N N | Shivani Kanojia
