Our High-Performance Inconel 718 (GH4169) coils are engineered to meet the intense demands of the power generation industry. This nickel-chromium superalloy is a rockstar when it comes to handling extreme temperatures, corrosion, and mechanical stress. From gas turbines to nuclear reactors, our coils are built to keep power plants running smoothly. Let’s dive into what makes these coils special, explore their applications, analyze industry trends, and show why our company is your go-to supplier for this critical material.
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Inconel 718, also known as GH4169, is a nickel-chromium alloy packed with niobium, molybdenum, titanium, and aluminum. It’s designed to perform in the toughest conditions, making it a perfect fit for power generation applications. Our coils meet the rigorous ASTM B637 standard, ensuring top-quality performance in high-temperature and high-stress environments. With 50-55% nickel, 17-21% chromium, 4.75-5.50% niobium, and other key elements, the alloy has a density of 8.19 g/cm³ and a melting range of 1260°C to 1336°C.
What makes our Inconel 718 coils stand out is their ability to deliver exceptional mechanical properties. They boast a minimum tensile strength of 185 ksi (1275 MPa), yield strength of 150 ksi (1034 MPa), and 12% elongation at room temperature. These coils hold up under extreme heat—up to 1300°F (700°C)—and resist oxidation up to 1800°F (980°C). They’re also tough in cryogenic conditions, down to -423°F (-253°C), making them versatile for a range of power generation needs.
We produce our coils using advanced techniques like vacuum induction melting (VIM) and vacuum arc remelting (VAR), followed by hot or cold rolling and precise heat treatments—solution annealing at 1700-1850°F and two-stage aging at 1325°F and 1150°F. This ensures a fine grain structure and consistent performance. Available in thicknesses from 0.016” to 0.250” and widths up to 48”, our coils can be tailored to your exact specs. Plus, they’re weldable in the aged condition, which simplifies fabrication for complex components like turbine blades or reactor parts.
|
Item |
Inconel 600 |
Inconel 617 |
Inconel 625 |
Inconel 718 |
Inconel X750 |
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 power generation sector is evolving fast, and high-performance materials like Inconel 718 are at the heart of it. The global nickel alloy market is projected to grow at a CAGR of around 4.7% through 2030, driven by the push for cleaner, more efficient energy. Gas turbines, which rely heavily on Inconel 718 for high-temperature components, are seeing increased demand as countries transition to lower-carbon energy sources. Nuclear power is also making a comeback, with new reactor designs requiring materials that can handle intense radiation and heat.
Sustainability is a big focus. Power plants are under pressure to reduce downtime and maintenance costs, which means they need materials that last longer in harsh conditions. Inconel 718’s resistance to creep, oxidation, and corrosion makes it a top choice for extending equipment life. The rise of renewable energy integration, like combined-cycle power plants, is also boosting demand for high-performance alloys in hybrid systems.
Supply chain challenges, like nickel price volatility and the complexity of alloy production, are pushing power generation companies to seek reliable suppliers. That’s where we shine, with our streamlined manufacturing and rigorous quality controls ensuring you get the coils you need, when you need them. Emerging trends, like additive manufacturing with Inconel 718 for custom turbine parts, are also opening new doors for innovation in the sector.
Applications of Inconel 718 Coils
Our Inconel 718 coils are a powerhouse in power generation. In gas turbines, they’re used for critical components like turbine discs, blades, and combustor cans, where they endure temperatures up to 1300°F (700°C) and intense mechanical stress. Their creep resistance ensures long-term reliability, keeping turbines spinning efficiently.
In nuclear power plants, these coils are formed into reactor components, heat exchangers, and steam generator tubing. They resist radiation-induced embrittlement and corrosion from high-pressure steam, making them ideal for both traditional and next-generation reactors. For fossil fuel plants, Inconel 718 coils are used in boiler systems and exhaust components, where their oxidation resistance shines at temperatures up to 1800°F (980°C).
Beyond power plants, our coils find use in related applications. In aerospace-derived gas turbines for power generation, they handle the extreme heat of jet engine technology adapted for stationary use. In cryogenic systems, like liquefied natural gas (LNG) facilities, they maintain toughness at -423°F (-253°C). Even in chemical plants supporting power generation, they’re used in heat exchangers exposed to aggressive chemicals, proving their versatility across high-stakes environments.
Comparison with a Competitor
When you’re picking a supplier for Inconel 718 coils, you want someone who delivers more than just metal. Our company goes the extra mile. Our coils are produced with state-of-the-art vacuum melting and precision heat treatments, resulting in cleaner material with fewer impurities than what you’d get from a typical competitor. This means better performance and longer life for your power generation components.
We’re AS9100D and NADCAP certified, so our quality meets the strictest industry standards. Every coil comes with full traceability and undergoes comprehensive testing—chemical analysis, mechanical testing, ultrasonic inspection, and microstructural evaluation. Some competitors might cut corners on testing or lack the same certifications, risking inconsistencies that could cost you down the line.
Our supply chain is built for speed and flexibility. Whether you need thin-gauge coils for heat exchangers or wider ones for turbine parts, we deliver customized solutions fast. Many competitors struggle with long lead times or limited customization, but we prioritize getting your project moving. Our technical team is also on hand to work with you, ensuring the coils meet your exact specifications—something not every supplier offers.
Comparison Parameters Table
|
Parameter |
Inconel 718 Coils |
Other Nickel Alloys |
|---|---|---|
|
Tensile Strength (Room Temp) |
≥ 185 ksi (1275 MPa) |
100–160 ksi |
|
Yield Strength (Room Temp) |
≥ 150 ksi (1034 MPa) |
80–130 ksi |
|
High-Temp Strength (650°C) |
≥ 1035 MPa |
600–900 MPa |
|
Corrosion Resistance |
Excellent (steam, chemicals) |
Moderate to good |
|
Oxidation Resistance |
Up to 1800°F (980°C) |
Up to 1600°F (870°C) |
|
Creep Resistance |
Superior at high temps |
Moderate |
|
Temperature Range |
-423°F to 1300°F |
-200°F to 1000°F |
|
Formability |
High (weldable, formable) |
Moderate to difficult |
Our Inconel 718 coils are built to power the future. We start with high-purity raw materials and use advanced manufacturing to produce coils that meet ASTM B637 standards every time. Our rigorous testing ensures you get a product that performs reliably, whether it’s in a gas turbine or a nuclear reactor. From chemical composition to mechanical properties, we leave nothing to chance.
Customization is our strength. Need a specific thickness, width, or heat treatment? We’ll tailor the coils to your needs. Our fast lead times keep your project on track, even for urgent orders. With decades of experience supplying the power generation industry, we’ve earned the trust of top players worldwide.
We’re also committed to sustainability. Our durable coils reduce maintenance and replacement costs, aligning with the industry’s push for greener, more efficient solutions. From fossil fuel plants to next-gen nuclear reactors, our Inconel 718 coils deliver the performance you need, backed by a team that’s with you every step of the way.
High-Performance Inconel 718 (GH4169) coils are a critical material for the power generation industry, offering unmatched strength, corrosion resistance, and reliability in extreme conditions. With a growing market driven by clean energy, nuclear advancements, and efficiency demands, these coils are more essential than ever. Our company’s advanced manufacturing, rigorous quality control, and customer-focused approach make us the top choice for Inconel 718 coils. Whether you’re building gas turbines or nuclear components, our coils are engineered to perform, and we’re here to help you power the future.
For more details, pls directly contact us.
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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 Inconel 718 (GH4169) made of?
It’s a nickel-chromium alloy with niobium, molybdenum, titanium, and aluminum for superior strength and corrosion resistance. -
Why are Inconel 718 coils suited for power generation?
They maintain high strength up to 1300°F (700°C) and resist oxidation and creep in extreme thermal environments. -
What power generation applications use Inconel 718 coils?
They’re used in gas turbine components, nuclear reactor parts, and heat exchangers for reliable performance under stress. -
How are Inconel 718 coils manufactured?
They’re produced through vacuum induction melting, hot/cold rolling, solution annealing, and precipitation hardening. -
What are the key mechanical properties of Inconel 718 coils?
Minimum tensile strength of 185 ksi (1275 MPa), yield strength of 150 ksi (1034 MPa), and 12% elongation. -
Can Inconel 718 coils withstand corrosive environments?
Yes, they resist pitting, oxidation, and stress-corrosion cracking in harsh conditions like high-pressure steam. -
Are Inconel 718 coils weldable?
They can be welded in the aged condition, making them ideal for complex power generation assemblies. -
What sizes do Inconel 718 coils come in?
Available in thicknesses from 0.016” to 0.250” and widths up to 48”, customizable for specific applications.