Blogs

Meet Your Invar® 36 Match: DOMADIA™ Dilaton 36 Alloy for High-Precision Stability
🚀 Introduction – The Challenge of Precision at Any Temperature
Imagine this: you’re designing a satellite component that will face temperatures ranging from -150°C in space to over 100°C when exposed to sunlight. A tiny dimensional shift in the metal could throw off an entire calibration, potentially costing millions. That’s not just a possibility—it’s a real-world challenge faced by engineers across aerospace, cryogenics, and precision instrumentation.
This is where DOMADIA™ Dilaton 36 enters the picture.
Engineered for exceptional thermal stability, DOMADIA™ Dilaton 36 is our proprietary FeNi36 alloy and a trusted Invar® 36 equivalent—designed for environments where dimensional accuracy is non-negotiable.
🔍 What is DOMADIA™ Dilaton 36?
DOMADIA™ Dilaton 36 is a high-performance alloy made from 36% nickel and the balance iron (FeNi36). What makes it special? It has an ultra-low rate of thermal expansion, meaning it barely changes in size—even when temperatures rise or fall dramatically.
This makes it the perfect choice for applications where even tiny shifts in dimensions can cause big problems—like in aerospace parts, satellite components, precision instruments, cryogenic systems, and more.
Because of its precise chemical composition and carefully controlled manufacturing process, DOMADIA™ Dilaton 36 offers exceptional dimensional stability,reliability, andperformance in critical environments.
🔬 Chemical Composition of DOMADIA™ Dilaton 36 (FeNi36)
Element | Composition (%) |
Nickel (Ni) | ~36% |
Iron (Fe) | Balance |
Carbon (C) | ≤ 0.05% |
Manganese (Mn) | ≤ 0.50% |
Silicon (Si) | ≤ 0.30% |
Chromium (Cr) | ≤ 0.25% |
Sulphur (S) | ≤ 0.02% |
Phosphorus (P) | ≤ 0.02% |
This precise composition allows for ultra-low thermal expansion and stable mechanical properties even under extreme temperatures.
📐 Key Properties of DOMADIA™ Dilaton 36
- Very Low Coefficient of Thermal Expansion (~1.2 × 10⁻⁶ /°C from -100°C to 200°C)
- Excellent Dimensional Stability
- Good Welding ability and Workability
- Non-Magnetic at Room Temperature
- Good Cryogenic Properties
🌍 Applications Across Industries
DOMADIA™ Dilaton 36 is ideal for applications where even the slightest expansion or contraction can lead to failure:

📏 Technical Specifications
Property | Value |
Density | ~8.1 g/cm³ |
Thermal Expansion (20-100°C) | ~1.2 x 10⁻⁶ /°C |
Tensile Strength | ≥ 450 MPa |
Yield Strength | ≥ 240 MPa |
Elongation | ≥ 30% |
Modulus of Elasticity | ~145 GPa |
Curie Temperature | ~230°C |
Magnetic Permeability | Low at room temperature |
📦 Available Shapes and Forms
We supply DOMADIA™ Dilaton 36 in multiple forms to meet diverse industrial needs:

📚 Standards & Designations
DOMADIA™ Dilaton 36 conforms to major international standards, ensuring quality and global compatibility:
- ASTM F15
- SEW 385
- DIN 17745
- DIN 1.3912
💡 Why DOMADIA™ Dilaton 36?
With rigorous quality control and advanced metallurgical expertise, DOMADIA™ Dilaton 36 matches and often exceeds the performance parameters of Invar® 36. Our commitment to precision and consistency makes us the trusted choice for engineers, designers, and manufacturers worldwide.
✅Conclusion
When precision, stability, and reliability are non-negotiable, DOMADIA™ Dilaton 36 delivers. As a trusted Invar® 36 equivalent, it offers outstanding thermal stability, superior mechanical properties, and performance you can count on—no matter the application.
⚠️Disclaimer:Invar® 36 is a registered trademark of its respective owner. DOMADIA™ Dilaton 36 is not associated with or endorsed by that brand. Our product is an independently manufactured equivalent, meeting or exceeding the same industry standards.
Found This Blog Useful?
📧 Contact us today for specs, pricing, or consultation: https://domadia.net/contact
Let’s talk! Our experts are here to help you find the perfect material for your project.
Kairav Domadia | Aadil Domadia | Er.Pankaj Domadia | Pragati Sanap | Pooja N N | Shivani Kanojia