Our Inconel 718 spring wire is a high-performance solution built to tackle the toughest challenges in chemical processing. This nickel-chromium superalloy is engineered to deliver exceptional strength, corrosion resistance, and durability in environments where aggressive chemicals and high temperatures are the norm. From reactor springs to heat exchanger components, our spring wire keeps critical systems running smoothly. Let’s dive into what makes this product stand out, explore its applications, analyze industry trends, and show why our company is your top choice for Inconel 718 spring wire.
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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 handle the harsh conditions of chemical processing, where corrosion and heat can wreak havoc. Our spring wire meets the stringent ASTM B637 standard, ensuring top-tier quality for critical applications. With a composition of 50-55% nickel, 17-21% chromium, 4.75-5.50% niobium, and other key elements, it has a density of 8.19 g/cm³ and a melting range of 1260°C to 1336°C.
Our Inconel 718 spring wire delivers impressive mechanical properties: a minimum tensile strength of 185 ksi (1275 MPa), yield strength of 150 ksi (1034 MPa), and 12% elongation at room temperature. It performs reliably from -423°F (-253°C) to 1300°F (700°C), with oxidation resistance up to 1800°F (982°C). This makes it ideal for springs facing intense thermal cycling and stress. Its corrosion resistance is a standout, handling pitting, stress-corrosion cracking, and aggressive chemicals like acids, alkalis, and high-temperature gases.
We produce our spring wire using advanced processes like vacuum induction melting (VIM) and vacuum arc remelting (VAR), followed by cold drawing, solution annealing at 1700-1850°F, and two-stage aging at 1325°F and 1150°F. This ensures a fine microstructure and superior fatigue resistance, critical for springs in high-stress chemical processing environments. Available in diameters from 0.005” to 0.125” and various tempers, our wire is customizable to fit your project. Its weldability in the aged condition makes it versatile for complex assemblies like reactor springs or valve components.
|
Item |
Inconel 600 |
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 chemical processing industry is growing fast, with a projected CAGR of around 4.5% for the global nickel alloy market through 2030. This growth is driven by demand for specialty chemicals, petrochemicals, and pharmaceuticals, all requiring materials that can handle aggressive media and high temperatures. Inconel 718’s exceptional corrosion resistance and strength make it a go-to for chemical plants aiming to maintain reliable, long-lasting equipment.
Sustainability is a major trend. Companies are focusing on materials that reduce maintenance and extend component life, cutting costs and environmental impact. Inconel 718’s durability in corrosive environments aligns perfectly with this shift, ensuring longer service life for critical components. The rise of green chemistry and bio-based processing is also increasing demand for alloys that can handle new, eco-friendly chemical processes without degrading.
Supply chain challenges, like nickel price volatility and the complexity of alloy production, mean chemical processing companies need dependable suppliers. Our optimized manufacturing and stringent quality controls ensure consistent supply and performance, giving us an edge in meeting tight project deadlines. Emerging trends, like advanced reactor designs and sustainable chemical production, are boosting demand for Inconel 718 spring wire, making it a critical material for the future.
Applications of Inconel 718 Spring Wire
Our Inconel 718 spring wire is a workhorse in chemical processing. It’s used in reactor springs, valve springs, and heat exchanger components, where it handles aggressive chemicals like sulfuric acid, hydrochloric acid, and alkalis. Its resistance to pitting and stress-corrosion cracking ensures reliability in high-pressure, high-temperature reactors, reducing downtime and maintenance costs.
In petrochemical plants, our spring wire is found in valves and pumps exposed to corrosive hydrocarbons and sour gases. Its ability to resist stress-corrosion cracking in chloride-rich environments makes it ideal for coastal or offshore facilities. In pharmaceutical processing, it’s used in equipment handling sterile, corrosive media, ensuring compliance with strict hygiene standards while maintaining performance under heat.
Beyond chemical processing, Inconel 718 spring wire finds use in related high-performance applications. In power generation, it’s used in gas turbine springs and steam generator components exposed to high temperatures. In oil and gas, it’s found in valve springs for sour gas wells, resisting hydrogen sulfide and seawater. Even in aerospace, it’s used in fuel system springs that face high temperatures and corrosive jet fuel, proving its versatility across demanding environments.
Comparison with a Competitor
When choosing a supplier for Inconel 718 spring wire, you want someone who delivers more than just material. Our company stands out with advanced manufacturing that produces cleaner, more consistent wire than what you’d get from a typical competitor. We use vacuum melting and precision cold drawing to minimize impurities, ensuring superior fatigue life and reliability for your chemical processing springs.
We’re AS9100D and NADCAP certified, so our quality meets the toughest industry standards. Every batch undergoes comprehensive testing—chemical analysis, mechanical testing, ultrasonic inspection, and microstructural evaluation—with full traceability. Some competitors might skimp on testing or lack equivalent certifications, risking inconsistencies that could lead to costly equipment failures.
Our supply chain is built for speed and customization. Whether you need ultra-fine wire for precision valve springs or heavier gauges for reactor components, we deliver tailored solutions fast. Many competitors struggle with long lead times or limited temper options, but we prioritize flexibility to keep your project on track. Our technical team works closely with you to ensure the wire meets your exact specs, offering support that sets us apart.
Comparison Parameters Table
|
Parameter |
Inconel 718 Spring Wire |
Other Nickel Alloys |
|---|---|---|
|
Tensile Strength (Room Temp) |
≥ 185 ksi (1275 MPa) |
70–120 ksi |
|
Yield Strength (Room Temp) |
≥ 150 ksi (1034 MPa) |
30–100 ksi |
|
High-Temp Strength (650°C) |
≥ 1035 MPa |
350–600 MPa |
|
Corrosion Resistance |
Excellent (acids, alkalis) |
Moderate to good |
|
Oxidation Resistance |
Up to 1800°F (982°C) |
Up to 1600°F (870°C) |
|
Fatigue Resistance |
Superior for cyclic loading |
Moderate |
|
Temperature Range |
-423°F to 1300°F |
-200°F to 1000°F |
|
Diameter Range |
0.005”–0.125” |
0.010”–0.150” |
Our Inconel 718 spring wire is built to perform in the harshest chemical processing environments. We start with high-purity raw materials and use cutting-edge manufacturing to produce wire that meets ASTM B637 standards every time. Our rigorous testing ensures reliability, from corrosion resistance to fatigue performance, so your springs can handle aggressive chemicals and extreme temperatures.
Customization is our strength. Need a specific diameter, temper, or surface finish? We’ll make it happen. Our fast lead times keep your project moving, even for urgent orders. With decades of experience supplying chemical processing industries, we’ve earned a reputation for quality and trust, working with top plants worldwide.
We’re also committed to sustainability. Our durable wire reduces maintenance and replacement costs, aligning with the industry’s push for greener solutions. From reactors to heat exchangers, our Inconel 718 spring wire delivers the performance you need, backed by a team that’s with you every step of the way.
For more details, pls directly contact us.
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 spring wire made of?
It’s a nickel-chromium alloy with niobium, molybdenum, titanium, and aluminum, delivering high strength and corrosion resistance. -
Why is Inconel 718 spring wire ideal for chemical processing?
It resists corrosion from aggressive chemicals and maintains strength up to 1300°F (700°C) in harsh environments. -
What chemical processing applications use Inconel 718 spring wire?
It’s used in reactor springs, valve springs, and heat exchanger components for handling acids and high temperatures. -
How is Inconel 718 spring wire manufactured?
It’s produced via vacuum induction melting, cold drawing, solution annealing, and age hardening for optimal performance. -
What are the mechanical properties of Inconel 718 spring wire?
Minimum tensile strength of 185 ksi (1275 MPa), yield strength of 150 ksi (1034 MPa), and 12% elongation. -
Does Inconel 718 spring wire resist corrosion?
Yes, it resists pitting, stress-corrosion cracking, and oxidation in acids, alkalis, and high-temperature gases. -
Can Inconel 718 spring wire be customized?
Available in diameters from 0.005” to 0.125” and various tempers, tailored to specific chemical processing needs. -
Is Inconel 718 spring wire weldable?
Yes, it’s weldable in the aged condition, making it versatile for complex chemical plant assemblies.