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DOMADIA™ Dilaton 51 – UNS N14052: The Alloy That Tames Expansion
Introduction
Imagine crafting a precision optical device meant to operate at high altitudes—or a satellite instrument subjected to fluctuating temperatures in space. One tiny thermal expansion in the material could spell disaster. Now, imagine a material so stable, it practically refuses to expand.
Introducing DOMADIA™ Dilaton 51, your secret weapon in precision engineering.
What is DOMADIA™ Dilaton 51 (FeNi51)?
DOMADIA™ Dilaton 51 is a nickel–iron alloy containing 51% nickel and 49% iron, engineered to maintain exceptionally low thermal expansion across a wide temperature range. Often categorized as a domadiasuper invar, this alloy maintains dimensional stability in applications where even micron-level changes matter.
Chemical Composition
This tight composition control ensures high consistency in performance.
Key Properties of FeNi51 Alloy
| Property | Value |
| Thermal Expansion (20–100°C) | ~1.2 × 10⁻⁶ /°C |
| Density | 8.12 g/cm³ |
| Melting Point | ~1420 °C |
| Electrical Resistivity | 0.8 μΩ·m |
| Curie Temperature | ~310 °C |
| Young’s Modulus | ~145 GPa |
These values make FeNi51 a go-to alloy for environments where dimensional precision matters most.
International Standards
DOMADIA™ Dilaton 51 complies with:
- UNS N14052
- DIN 2.4478
- SEW 385 / DIN 17745
- ASTM F30
- Pernifer 50
This global recognition makes it easier to integrate into standardized supply chains and engineering workflows.
Applications Across Industries
Aerospace & Satellite
Used in precision satellite structures and sensor mounts where heat variation can lead to data inaccuracies or failure.
Optical Devices & Laser Systems
Perfect for components in laser gyroscopes, telescopes, and photolithography machines.
Scientific Instrumentation
Stable under fluctuating conditions in cryogenic and lab environments.
Sealing and Glass-to-Metal Bonds
FeNi51 is ideal for hermetically sealed enclosures, ensuring long-term reliability in electronic devices.
Technical Specifications
- Forming: Excellent cold formability
- Welding: Good welding ability with TIG, MIG, and resistance methods
- Machining: Requires slower speeds and higher feed due to work hardening
- Heat Treatment: Annealing recommended after forming for stress relief
Shapes and Forms Available
We offer DOMADIA™ Dilaton 51 in a variety of forms to match your engineering needs:
Whether you’re prototyping or in full production mode, we’ve got the format you need.
Why Choose DOMADIA™?
At DOMADIA™, we don’t just supply metals—we provide performance. Our DOMADIADilaton 51 is backed by rigorous quality control, traceability, and expert technical support.
Whether you’re building a space telescope or a pacemaker, trust DOMADIA™ Dilaton 51 to hold its shape when everything else flexes.
Conclusion
Precision. Stability. Confidence.
DOMADIA™ Dilaton 51 (FeNi51, UNS N14052) is the answer to your thermal expansion challenges. When the stakes are high and the tolerances tight, this alloy doesn’t just meet expectations—it redefines them.
🔗 Explore our full range of precision alloys and engineering materials at https://domadia.net/
Need help choosing the right form factor? 📩 Contactour experts today!
Talk to: Kairav Domadia | Aadil Domadia | Er.Pankaj Domadia | Pragati Sanap | Pooja N N | Shivani Kanojia
