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DOMADIA™ Silverin 404 (UNS N04404): The Nickel-Copper Alloy with a High-Frequency Edge
In the world of high-performance materials, some names echo louder than others. You’ve likely heard of Monel® 404—a staple in high-frequency electrical applications. But have you met its equally powerful, high-integrity counterpart?
Introducing DOMADIA™ Silverin 404, our signature nickel-copper alloy based on the globally recognized UNS N04404 / ASTM F96 standard.
Here’s the truth: while Monel® is a registered trademark of Special Metals Corporation, DOMADIA™ Silverin 404 it is a qualified equivalent engineered for excellence. Let’s unpack what makes it exceptional.
Chemical Composition of Silverin 404 (UNS N04404)
Element | Content (%) |
Nickel (Ni) | 52.0 – 57.0 |
Copper (Cu) | Balance (typically ~45%) |
Iron (Fe) | ≤ 1.0 |
Manganese (Mn) | ≤ 1.25 |
Silicon (Si) | ≤ 0.5 |
Carbon (C) | ≤ 0.15 |
Sulphur (S) | ≤ 0.024 |
This precise blend allows Silverin 404 to achieve superior electrical conductivity, thermal resistance, and magnetic neutrality — ideal for sensitive electronic environments.
Technical Specifications
- UNS N04404
- Standard: ASTM F96
- Density: ~8.88 g/cm³
- Melting Point: ~1300–1350 °C
- Electrical Resistivity: ~0.36 µΩ·m
- Modulus of Elasticity: 175 GPa
- Thermal Conductivity: 21.8 W/m·K
- Magnetic Permeability: Low (non-magnetic in annealed condition)
- Formability: Excellent (Cold and hot worked)
Available Shapes
DOMADIA™ Silverin 404 is supplied in a variety of industrial forms:

Available forms/shapes are foil, plates, rods, strips, bars, sheets and custom shape as per requirement.
This makes it a versatile choice for OEMs, repair shops, and research labs alike.
Key Properties of DOMADIA™ Silverin 404
- High Electrical Conductivity – Excellent for transformer and relay components.
- Low Thermal EMF – Crucial in thermocouples and sensitive electronic circuits.
- Non-Magnetic Nature – Ideal for environments requiring minimal electromagnetic interference.
- Excellent Corrosion Resistance – Performs well in marine and atmospheric conditions.
- Dimensional Stability – Maintains form even at elevated temperatures.
Applications Across Industries
DOMADIA™ Silverin 404 is tailor-made for high-frequency and precision electrical applications, including:

- Electronic and Electrical Devices: Used in components where low permeability and good brazing are needed, such as electronic parts and capsules for transistors.
- Marine Fixtures: Resistant to corrosive environments, making it suitable for marine applications.
- Chemical Processing Equipment: Offers excellent corrosion resistance in various chemical environments.
- Boiler Feed Water Heaters: Used in heat exchangers due to its heat resistance and corrosion resistance.
- Other Heat Exchangers: Suitable for applications where high temperature and corrosion resistance are required.
- Fasteners: Offers strength and corrosion resistance in various fastening applications.
- Valves and Pumps: Used in components that require high strength and corrosion resistance.
- Shafts and Fittings: Used in components that require high strength and corrosion resistance.
- Ceramic-to-Metal Seals: Useful in applications where a strong bond between ceramic and metal is needed.
- Composite Metal Tubes: Its thermal expansion properties make it suitable for composite tube production.
Its unique low thermal EMF and high conductivity make it indispensable in signal-sensitive environments.
Standards & Certifications
- Compliant with ASTM F96
- Material designation: UNS N04404
- Equivalent to Monel® 404, but not affiliated
⚠️ Disclaimer:Monel® is a registered trademark of Special Metals Corporation. DOMADIA™ Silverin 404 is our proprietary brand, offering a performance-based, independently produced alternative equivalent in composition and function. We do not represent or distribute Monel®.
We use precision-controlled melting processes, certified quality assurance, and stringent composition standards to ensure our alloy meets or exceeds performance benchmarks of globally recognized materials.
Why Choose DOMADIA™ Silverin 404 ?
- Material Integrity: Certified to ASTM standards with documented traceability.
- Equivalent Performance: Electrical, thermal, and magnetic specs match Monel® 404.
- Custom Availability: We offer custom sizes, finishes, and packaging.
- Pricing Flexibility: Cost-effective without compromising on quality.
- Brand Assurance: Backed by DOMADIA™’s reputation for reliable specialty metals.
Conclusion: A Smart Move for Smart Applications
If you’re looking for a trusted, high-performance nickel-copper alloy for high-frequency and signal-critical applications, DOMADIA™ Silverin 404 (UNS N04404) delivers all the value of Monel® 404—with the added advantage of direct support, form flexibility, and brand commitment.
Make the switch to Silverin 404 and experience precision engineering backed by metallurgical integrity.
Choose DOMADIA™ Silverin 404 for unmatched reliability, conductivity, and corrosion resistance.
📩 Get in touch today for custom sizes, technical datasheets, or a quick quote!
👉 Contact Us Now | 🌐 Visit: www.domadia.net
Talk to us: Kairav Domadia | Aadil Domadia | Er.Pankaj Domadia | Pragati Sanap | Pooja N N | Shivani Kanojia