Incoloy vs Inconel differs mainly in composition. Incoloy has lower nickel (< 50%) and higher iron for cost-effective corrosion resistance, while Inconel exceeds 50% nickel for superior extreme-heat strength.
Incoloy Tube Manufacturer
We at Xintongda Special Steel (XTD) are a leading supplier and manufacturer of Incoloy tubes in China. It mainly comprises nickel, iron, and chromium. This alloy performs well because of its exceptional high temperature resistance up to ~1500–1650°F (815–900°C) depending on grade. It also offers excellent oxidation and corrosion resistance in harsh environments. Our tubes are resistant to stress corrosion cracking, carburisation, and acids. Due to these properties, the incoloy tube is suitable for applications like heat exchangers, condensers, furnaces, chemical reactors, oil & gas downhole tubing and more. We manufacturer Incoloy tubes in custom sizes, with OD ranging from 6–457 mm, thickness ranging from 1–65 mm and lengths up to 22 m. We supply grades like 800/800H/800HT, 825 and 925. Our annual supply capacity is 25,000 tons, and we deliver in-stock orders within a week.
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OD Range 6-457 mm -
Thickness Range 1-65 mm -
Length ≤ 22 m
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What is Incoloy Tube?
Incoloy tubes are nickel-iron-chromium superalloys designed for high-temperature and corrosive environments. Grades such as the 800 series typically contain 30–35% nickel and 19–23% chromium, with balance iron. We offer various grades of Incoloy tubing like Incoloy 800 (UNS N08800), 800H (N08810), 800HT (N08811), and 825 (N08825). These Incoloy superalloys are designed for high-temperature and corrosive environments. Our Incoloy tubes have excellent oxidation resistance and strong aqueous corrosion resistance. It also maintains mechanical stability at elevated temperatures.
Inconel contains more than 50% nickel, while Incoloy has less than 50% nickel. This makes Incoloy more cost-effective while still providing good corrosion resistance in mixed conditions.
Key Characteristics of Incoloy Tubing
Our Incoloy tubing have 6 key properties that ensure exceptional performance in aggressive settings.
- High-Temperature Resistance: Our Incoloy tubes maintain structural stability at temperatures up to 1100°C (2012°F). They resist creep and thermal fatigue during long-term exposure. This makes them reliable for use in furnaces and reactors without deformation.
- Aqueous Corrosion Resistance: These tubes perform well in wet environments. They resist attacks from sulfuric, phosphoric, and chloride chemicals in processing pipelines. This ensures they maintain integrity where standard alloys would pit quickly.
- Resistance to Stress Corrosion Cracking: The high nickel content prevents cracking in chloride-stressed conditions. This ensures reliability in marine and sour gas applications. It performs well under combined tensile and corrosive loads.
- Oxidation and Carburization: It forms stable oxide layers that block oxygen and carbon. This helps maintain ductility in high heat carburising environments up to 1100°C. It prevents embrittlement under extreme conditions.
- Good Mechanical Properties: It provides typical room-temperature values of tensile strength above 585 MPa and annealed yield strength over 170-205 MPa for 800 series. The performance is consistent from cryogenic to high temperatures.
- Acid Resistance: It withstands reducing acids such as sulfuric acid concentration and oxidising acids like nitric acid. This makes it suitable for handling aggressive chemicals without pitting or degradation over time.
Incoloy Alloy Tube Specifications
Incoloy tube specifications include ASTM standards, with OD 6-457 mm, thickness 1-65 mm, and lengths up to 22m. We provide seamless forms in round, coil, hydraulic, straight, 'U' bent, hollow tubes, and more in bright annealed, polished, or cold drawn finishes.
Standard
ASTM B163, B407, B983
Outside Diameters
6-457 mm
Length
Max to 22 M
Thickness Range
1-65 mm
Surface Finish
Bright Annealed, Polished, or Cold Drawn
Form
Round, Coil, Hydraulic, Straight, 'U' bent, Hollow
End
Plain End, Beveled End, Threaded
Testing
PMI, Radiography, Mechanical, Chemical
Different Types of Incoloy Tubes
We offer 6 types of Incoloy tubes, specialising in seamless manufacturing for precision and strength in critical applications.
Seamless Incoloy Tubes
Incoloy Heat Exchanger Tubes
Incoloy Condenser Tubes
Incoloy Capillary Tubing
Incoloy Tubes for Sale in Various Grades
We provide 5 common grades of Incoloy tubes, each made for specific application. Incoloy 800/800H/800HT provide high-temperature strength while 825 and 925 offer corrosion resistance in chemical and acidic environments.
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Incoloy 800 Tube
This type of alloy is referred to as Ferrochronin 800, Nickelvac 800, Nicrofer 3220, and Alloy 800 (UNS N08800 / 1.4876). It is good for heat-treating equipment and steam generators as it is both resistant to oxidation and easy to work with.
02
Incoloy 800H Tube
UNS N08810/1.4958 equivalents include Nickelvac 800H, Ferrochronin 800H, Nickel 800H, and Nicrofer 3220, featuring higher carbon for improved creep-rupture strength at 700-900°C in sustained high-heat services.
03
Incoloy 800HT Tube
UNS N08811/1.4959, known as Nickelvac 800HT, Ferrochronin 800HT, and Nicrofer 3220HT, with controlled aluminium and titanium (0.85-1.20%) for improve creep strength and long-term stability in carburising furnaces.
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Incoloy 825 Tube
UNS N08825 / 2.4858, also known as Nickelvac 825, Nicrofer 4241, and Alloy 825, offers pitting resistance through molybdenum and copper additions in severe wet corrosion scenarios like phosphoric acid evaporators.
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Incoloy 925 Tube
UNS N09925, Alloy 925 uses age-hardening for elevated strength in oilfield tubing exposed to H2S, high pressures, and chlorides in downhole conditions.
Applications and Uses of Incoloy Alloy Tubes
Our Incoloy tubes have 6 main uses. Excelling in harsh environments where standard materials degrade. These uses make our tubes corrosion and heat resistance for optimal performance across industries.
Heat Exchangers & Condensers
Our tubes efficiently transfer heat in corrosive petrochemical fluids like sulfuric acid, resisting scaling and erosion for reliable operation and minimal downtime.
Furnaces
They line heating zones to combat oxidation and carburization at temperatures exceeding 1000°C, extending equipment life in metallurgical and petrochemical furnaces.
Chemical Reactors
Tubes handle reactive acids and vapours in vessels, preventing leaks through superior pitting and crevice corrosion resistance in nitric and organic acid processing.
Aerospace Components
Provide thermal cycling durability in engine ducts and exhausts, maintaining integrity under rapid heating and vibration in jet propulsion systems.
Marine Exhaust Systems
Endure saltwater and hot gases, minimising sulfidation and stress cracking in ship and power generation exhaust manifolds.
High-Temperature Fluid Transfer Lines
These tubes are used for transferring high-temperature fluids and gases where standard stainless steel loses strength or corrodes rapidly.
Steam Generator Tubing
Incoloy tubes are installed in steam generators to maintain strength and corrosion resistance under continuous thermal stress.
Oil & Gas Downhole Tubing
It withstands sour service environments and exposure to brine in wells. Pressure capability depends on pipe OD, wall thickness, material grade, and the applicable design code, rather than a fixed pressure value, ensuring safe and reliable operation in sour gas reservoirs when properly specified.
Buy Incoloy Alloy Tubing from XINTONGDA
- Raw Materials Certificate
- 100% Positive Material Identification (PMI)
- Heat Treatment Charts
- Third-Party Inspection Report
- Surface roughness and size measurement
- Manufacturer Test Certificate (Impact Testing, Flattening, Flare, Bend, Hardness, Intergranular Corrosion, Pitting Corrosion, Grain size, Eddy Current (ET), Ultrasonic Testing (UT), Hydrostatic Testing (HT), etc.)
- Laboratory Test Certificate from Govt. Approved Lab
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Frequently Asked Questions
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What is the difference between Incoloy and Inconel Tube?
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Are Incoloy tubes resistant to corrosion?Yes, Incoloy tubes resist acidic corrosion, stress corrosion cracking, oxidation and sulfidation in harsh settings.
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What is the temperature range for Incoloy Tubes?Incoloy tubes operate from cryogenic to 1100°F (593°C) continuously, up to 1500°F (816°C) intermittently.
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What are the advantages of using Incoloy Tubes?The advantages of using Incoloy tubes are long service life in harsh environments, versatility across industries, excellent creep-rupture strength, weldability, and cost savings over higher-nickel alloys.