When it comes to micro wire designed for extreme environments, few materials can match the balance of strength, durability, and versatility of Inconel 718. DLX has been delivering high-performance Inconel 718 micro wire, conforming to standards such as GOST ЭП718, to industries where precision and reliability are non-negotiable.
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Inconel 718 micro wire is a nickel-chromium alloy strengthened by additions of niobium, molybdenum, and iron. This composition enables excellent tensile, yield, and fatigue strength, while still maintaining ductility and weldability. What makes the micro wire variant unique is its ultra-fine diameter and tight tolerance production, making it an ideal choice for aerospace, turbine, and precision engineering components.
Unlike many alloys that sacrifice weldability for strength, Inconel 718 strikes a unique balance, allowing it to be fabricated into complex shapes and miniature parts without losing mechanical integrity. Its ability to resist oxidation, scaling, and creep deformation under long-term service at high temperatures is why it remains a staple in aerospace fasteners, gas turbine parts, and high-performance springs.
Item | Inconel 600 | Inconel 625 | Inconel 825 | |||||
C | ≤0.15 | ≤0.1 | 0.05-0.15 | ≤0.08 | ≤0.05 | ≤0.08 | ≤0.08 | ≤0.05 |
Mn | ≤1 | ≤1.5 | ≤0.5 | ≤0.35 | ≤0.5 | ≤0.35 | ≤1 | ≤1 |
Fe | 6-10 | rest | ≤3 | rest | 7-11 | rest | 5-9 | ≥22 |
P | ≤0.015 | ≤0.02 | ≤0.015 | -- | -- | -- | -- | -- |
S | ≤0.015 | ≤0.015 | ≤0.015 | ≤0.015 | ≤0.015 | ≤0.01 | ≤0.01 | ≤0.03 |
Si | ≤0.5 | ≤0.5 | ≤0.5 | ≤0.35 | ≤0.5 | ≤0.35 | ≤0.5 | ≤0.5 |
Cu | ≤0.5 | ≤1 | -- | ≤0.3 | ≤0.5 | ≤0.3 | ≤0.5 | 1.5-3 |
Ni | ≥72 | 58-63 | ≥44.5 | 50-55 | ≥58 | 50-55 | ≥70 | 38-46 |
Co | -- | -- | 10-15 | ≤10 | -- | ≤1 | ≤1 | -- |
Al | -- | 1-1.7 | 0.8-1.5 | ≤0.8 | -- | 0.2-0.8 | 0.4-1 | ≤0.2 |
Ti | -- | -- | ≤0.6 | ≤1.15 | -- | -- | 2.25-2.75 | 0.6-1.2 |
Cr | 14-17 | 21-25 | 20-24 | 17-21 | 27-31 | 17-21 | 14-17 | 19.5-23.5 |
Nb+Ta | -- | -- | -- | 4.75-5.5 | -- | 4.75-5.5 | 0.7-1.2 | -- |
Mo | -- | -- | 8-10 | 2.8-3.3 | -- | 2.8-3.3 | -- | 2.5-3.5 |
B | -- | -- | ≤0.006 | -- | -- | -- | -- | -- |
Shape | Size (mm) |
Wire | 0.02-7.50 |
Rod/Bar | 8.0-200 |
Strip | (0.5-2.5)*(5-180) |
Tube/Pipe | Customized |
Sheet/Plate | Customized |
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The global demand for Inconel 718 has been rising steadily, driven by the expansion of aerospace and energy sectors. Micro wire forms, in particular, are increasingly in demand due to the push for smaller, lighter, yet stronger components in turbine engines and aerospace fastening systems. As manufacturers innovate toward more efficient propulsion systems, materials like Inconel 718 micro wire are becoming a key enabler.
The aerospace industry alone accounts for a significant portion of consumption, using this alloy in both civilian and defense aviation. Gas turbine production is another major driver, as efficiency and emissions standards push for components that can withstand higher operating temperatures. Offshore energy and automotive industries are also contributing to growth, with micro wire being used in advanced sensors, seals, and control systems.
From a regional perspective, Europe and North America continue to be the largest consumers, given their strong aerospace and defense sectors. However, Asia-Pacific is experiencing rapid adoption as turbine and energy projects expand, particularly in China and India.
Applications
Gas Turbine Components: Used in seals, springs, and precision parts exposed to hot gas flow.
Aerospace Fasteners: Provides high tensile strength and fatigue resistance, ensuring structural integrity under extreme conditions.
Combustor and Engine Parts: Withstands high pressure and temperatures without creep failure.
Automotive Performance Systems: Micro wire is used in exhaust systems, turbocharger parts, and precision springs.
Marine and Energy Applications: High corrosion resistance makes it suitable for harsh offshore environments.
Company Comparison and DLX Advantage
While many suppliers offer Inconel 718, DLX distinguishes itself with its precision and reliability. Producing micro wire at ultra-fine diameters requires advanced manufacturing controls. DLX has invested in precision drawing and annealing technology to ensure dimensional stability, smooth surface finishes, and consistent metallurgical integrity.
Where other suppliers may deliver wire with uneven mechanical performance, DLX ensures batch-to-batch consistency, critical for aerospace and turbine customers. DLX’s expertise in working with international standards, including ASTM, AMS, and GOST ЭП718, provides peace of mind to clients that they are receiving compliant material.
Additionally, DLX emphasizes customer support and technical guidance. For clients working on custom turbine designs or aerospace fasteners, DLX provides engineering input on alloy selection, surface condition, and processing methods. This level of partnership goes beyond just supply—it ensures the end product delivers maximum performance.
Comparison Table: Inconel 718 Micro Wire vs Other High-Temperature Alloys
| Property | Inconel 718 Micro Wire (GOST ЭП718) | Inconel 625 Wire | Hastelloy X Wire |
|---|---|---|---|
| Tensile Strength (MPa) | 1240 – 1380 | 827 – 965 | 750 – 950 |
| Yield Strength (MPa) | 1030 – 1100 | 414 – 552 | 550 – 690 |
| Elongation (%) | 12 – 23 | 30 – 40 | 30 – 40 |
| Density (g/cm³) | 8.19 | 8.44 | 8.22 |
| Max Service Temp (°C) | ~700 | ~600 | ~650 |
| Corrosion Resistance | Excellent | Excellent | Very Good |
| Fatigue Resistance | High | Moderate | Moderate |
| Weldability | Good | Good | Fair |
The outlook for Inconel 718 micro wire is strong. With aerospace and energy efficiency requirements pushing the boundaries of material science, alloys like Inconel 718 will remain indispensable. DLX is positioned to lead this space by continuing to refine micro wire manufacturing, providing the durability and precision demanded by modern industries.
As lightweight design, miniaturization, and environmental regulations become more important, demand for micro wire in Inconel 718 will only increase. DLX is committed to staying ahead of this trend, ensuring clients have access to reliable, high-performance materials that meet evolving needs.
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About Us:
Our 12,000㎡ factory is equipped with complete capabilities for research, production, testing, and packaging. We strictly adhere to ISO 9001 standards in our production processes, with an annual output of 1,200 tons. This ensures that we meet both quantity and quality demands. Furthermore, all products undergo rigorous simulated environment testing including high temperature, high pressure, and corrosion tests before being dispatched, ensuring they meet customer specifications. For all our clients, we offer timely and multilingual after-sales support and technical consulting, helping you resolve any issues swiftly and efficiently.
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FAQs:
What is the primary advantage of Inconel 718 micro wire?
High strength and creep resistance at elevated temperatures.What industries commonly use Inconel 718 micro wire?
Aerospace, gas turbines, automotive, marine, and energy.What is the typical operating temperature range?
-250°C to 700°C.Is Inconel 718 micro wire resistant to corrosion?
Yes, it offers excellent resistance to oxidation, corrosion, and stress corrosion cracking.Can Inconel 718 micro wire be welded?
Yes, it has good weldability compared to many other high-strength alloys.What are the key standards for Inconel 718 micro wire?
ASTM B637, AMS 5662, AMS 5663, GOST ЭП718.What are the typical applications in aerospace?
Fasteners, turbine blades, combustor components, seals, and springs.Why choose DLX for Inconel 718 micro wire?
Consistent quality, precision sizing, and reliable delivery for demanding industries.