Our Inconel 625 (GH3625) coil tubes are a high-performance nickel alloy designed to excel in extreme heat and corrosive environments. Composed of roughly 58% nickel, 20-23% chromium, 8-10% molybdenum, 3.15-4.15% niobium, and small amounts of iron, carbon, and other trace elements, this alloy is a powerhouse for demanding applications. Built to meet ASTM B444, ASTM B704, and UNS N06625 standards, our coil tubes come in outer diameters from 0.125” to 1.000” and customizable lengths, making them versatile for a range of industries.
These tubes are built to resist oxidation, pitting, crevice corrosion, and stress corrosion cracking, even in harsh conditions like high-temperature gases or acidic environments. They maintain strength up to 1800°F (982°C), making them perfect for aerospace, oil and gas, and power generation. Plus, they’re easy to weld, form, and machine, so you can shape them to your needs without losing durability. Our Inconel 625 coil tubes keep your operations running smoothly, cutting downtime and maintenance costs.
For more details, pls directly contact us.
The global nickel alloy market, including our Inconel 625 (GH3625) coil tubes, was valued at USD 1.2 billion in 2023 and is projected to reach USD 1.8 billion by 2032, growing at a CAGR of 5.3%. Aerospace, oil and gas, and power generation are key drivers, as these industries demand materials that can withstand extreme heat, corrosion, and stress while meeting strict safety and environmental standards. Sustainability trends are pushing companies toward durable, low-maintenance materials to reduce waste and operational costs.
Aerospace is seeing increased demand for lightweight, high-strength alloys like Inconel 625 to support more efficient jet engines and space exploration components. In oil and gas, the need for corrosion-resistant materials is growing as exploration moves to harsher environments like deepwater and sour gas wells. Power generation, including nuclear and geothermal plants, relies on alloys that can handle high temperatures and corrosive conditions. Emerging trends in renewable energy, such as geothermal and solar thermal systems, are boosting demand for high-performance materials. Chemical processing also leans on Inconel 625 for its ability to resist aggressive acids and high temperatures.
As industries prioritize efficiency and longer equipment lifespans, our Inconel 625 coil tubes are a perfect fit. Their corrosion resistance and high-temperature stability make them a go-to choice for high-stakes applications, ensuring reliability and cost savings over time.
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Item |
Inconel 600 |
Inconel 625 |
Inconel 690 |
Inconel 718 |
Inconel 825 |
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|
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 |
For more details, pls directly contact us.
Our Inconel 625 (GH3625) coil tubes are a versatile workhorse across multiple industries. In aerospace, they’re used in jet engine components, turbine blades, and exhaust systems, handling extreme heat and oxidative stress. In oil and gas, they’re critical for pipelines, sour gas wells, and offshore platforms, resisting corrosion from hydrogen sulfide and chlorides.
In power generation, our tubing is found in boilers, heat exchangers, and nuclear reactor components, standing up to high temperatures and corrosive gases. The chemical processing industry uses it in reactors, distillation columns, and piping systems, where it resists acids like sulfuric and hydrochloric. In marine engineering, it’s used in heat exchangers and piping exposed to seawater, preventing corrosion in salty conditions.
The nuclear industry relies on our tubing for reactor tubing and steam generator components, thanks to its resistance to high-purity water and chloride-ion stress corrosion cracking. In pollution control, it’s used in scrubbers and exhaust systems to handle acidic gases. Its durability and versatility make it a must-have for any application requiring high performance under extreme conditions.
Company Comparison and Our Advantages
Our Inconel 625 (GH3625) coil tubes set the industry standard, and we’re proud to lead the pack. We source only the highest-quality raw materials, ensuring every tube meets ASTM B444, B704, and UNS N06625 standards. With outer diameters from 0.125” to 1.000” and customizable options, we tailor our tubing to your exact needs, whether it’s specific lengths, wall thicknesses, or finishes.
Our manufacturing process is state-of-the-art, delivering precision and consistency while prioritizing sustainability to minimize waste and energy use. We provide full material traceability and detailed documentation, making compliance with industry regulations a breeze. Unlike others, our tubing is designed for reliable fabrication—welding, forming, and machining are manageable with proper techniques, ensuring strong performance.
We offer value-added services like custom cutting, bending, and heat treatment, all tailored to your project’s requirements. Our expert team supports you from material selection to on-time delivery, ensuring your project stays on track. While some companies might cut corners, we focus on delivering a product that lasts, saving you maintenance costs and downtime. Our global supply chain ensures fast, reliable delivery, no matter where your project is located.
|
Property/Feature |
Inconel 625 (GH3625) |
Inconel 600 |
Stainless Steel 316L |
|---|---|---|---|
|
Nickel Content (%) |
~58 |
~72 |
~10-14 |
|
Chromium Content (%) |
20-23 |
14-17 |
16-18 |
|
Molybdenum Content (%) |
8-10 |
None |
2-3 |
|
Tensile Strength (ksi) |
120 min |
80-100 |
70-85 |
|
Yield Strength (ksi) |
60 min |
25-50 |
25-40 |
|
Corrosion Resistance |
Superior in acids and chlorides |
Excellent in oxidizing conditions |
Moderate, weaker in chlorides |
|
Temperature Resistance |
Up to 1800°F (982°C) |
Up to 2000°F (1093°C) |
Up to 1600°F (871°C) |
|
Weldability |
Good, requires careful handling |
Excellent, versatile methods |
Good, less resistant post-weld |
|
Applications |
Aerospace, oil/gas, chemical |
Chemical, aerospace, nuclear |
General industrial use |
Our Inconel 625 (GH3625) coil tubes are built to excel in high-temperature, corrosive environments across aerospace, oil and gas, power generation, and more. Their nickel-chromium-molybdenum composition delivers unmatched corrosion resistance, high-temperature stability, and durability, making them ideal for jet engines, pipelines, and reactors. With industry trends favoring sustainable, long-lasting materials, our tubing is a smart investment that boosts efficiency and cuts costs.
We take pride in delivering a product that’s tough, reliable, and tailored to your needs. From rigorous quality control to customizable solutions and global delivery, we’re committed to your success. Choose our Inconel 625 coil tubes for a material that stands up to the harshest conditions, backed by a company focused on quality, sustainability, and getting it right every time.
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:
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What is the composition of Inconel 625 (GH3625) coil tubes?
~58% nickel, 20-23% chromium, 8-10% molybdenum, 3.15-4.15% niobium, with iron (max 5%), carbon (max 0.1%), and trace elements. -
Which industries use these coil tubes?
Aerospace, oil and gas, power generation, chemical processing, marine engineering, and nuclear industries. -
What are their main applications?
Jet engine components, heat exchangers, oil and gas pipelines, chemical reactors, and nuclear reactor tubing. -
How do they resist corrosion?
Excellent resistance to oxidation, pitting, crevice corrosion, and stress corrosion cracking in acidic and chloride-rich environments. -
Are they easy to weld?
Yes, they weld well using TIG, MIG, or shielded metal-arc methods, with good joint strength. -
What temperatures can they handle?
They maintain strength up to 1800°F (982°C), ideal for high-temperature applications. -
Are they cost-effective?
Higher initial cost but save money long-term with durability and low maintenance needs. -
What standards do they meet?
Comply with ASTM B444, B704, ASME SB444, SB704, and UNS N06625 for consistent quality.