Inconel Tube Manufacturer
Gnee supplies Inconel Tubes to global markets, including Europe, Southeast Asia, the Middle East, Latin America, etc. Serving industries such as aerospace, marine, power generation, and chemical processing.
Our seamless and welded Inconel tubes, available in grades like Inconel 600, 625, 718, and more, offer outstanding resistance to high temperatures, oxidation, and corrosion.
We provide custom cutting, welding, precision machining, surface treatment, third-party testing, and fast worldwide shipping, ensuring reliable solutions tailored to your needs. Contact Gnee today to get a quote on high quality Inconel pipes.

| About Gnee Alloy | Founded in 2008, Factory Area 35,000m², expert nickel alloy manufacturer & supplier & exporter with rich experience. |
|---|---|
| Exporting Countries | Exported to 70+ countries including India, Saudi Arabia, UAE, Brazil, France, etc. |
| Large Stock | Inconel Plate & Pipe & Tube & Sheet & Bar & Coil & Fitting |
| Supply Ability | Up to 800 tons per month |
We have rich inconel alloy shapes in stock
You might be interested in these products
Description
Inconel tube manufactured by Gnee is a high-performance nickel-chromium alloy tube designed for extreme environments requiring excellent corrosion resistance, oxidation resistance, and high-temperature strength. Common grades like Inconel 600, 625, and 718 maintain mechanical integrity even at temperatures exceeding 1000°C (1832°F), making them ideal for aerospace, power generation, and chemical processing.
Gnee, a nickel-based alloy manufacturer with over 10 years of experience, specializes in high-performance Inconel Tube. We produce and manufacture Inconel seamless and welded options, ranging in diameter from 6mm to 273mm, customizable.
What forms does Gnee Inconel Tube supplier supply?
- Inconel Welded Pipe
- Inconel Seamless Tube
- Inconel Round Tube
- Inconel Square Tube
- Inconel Rectangular Tube
- Inconel Thin Wall Tube
- Inconel Thick Wall Tube
- Inconel Heat Exchanger Tube
- Inconel Gas Turbine Tube
- Inconel Chemical Equipment Tube
- Inconel High Temperature High Pressure Tube
- Inconel Bright Tube
- Inconel Hairline Tube
- Inconel Polished Tube
Inconel Pipe Product Parameters
| Parameter | Description |
| Material Grades | Inconel 600, 601, 625, 718, 800, 800H, 800HT, X-750, 33, 690, 22 |
| Tube Shape | Round, Square, Rectangular, Thin Wall, Thick Wall |
| Dimensions | OD: 6mm–120mm, Wall Thickness: 0.5mm–20mm, Length: Up to 12m |
| Surface Finish | Bright, Hairline, Polished, Pickled |
| Manufacturing Process | Seamless, Welded, Cold Drawn, Hot Finished |
| Applications | Heat Exchanger, Gas Turbine, Chemical Equipment, High Temp & Pressure, Superheater, Boiler |
| Mechanical Properties | Yield Strength: 290 MPa, Tensile Strength: 760 MPa, Elongation: 35% |
| Temperature Resistance | Up to 1,000°C |
| Certifications | ISO 9001, ASTM B163/B167/B516, SGS |
Rich grades of Inconel Pipe in stock
| GENERIC TERM | DIN/EN | UNS NO | INGREDIENT |
| INCONEL Alloy 600 | 2.4816 | N06600 | 72Ni-151Cr-8Fr-0.2Cu-0.02C |
| INCONEL Alloy 601 | 2.4851 | N06601 | 60Ni-22Cr-1.2Al-0.02C |
| INCONEL Alloy 625 | 2.4856 | N06625 | 58Ni-21Cr-9Mo-3.5Nb-1CO-0.02C |
| INCONEL Alloy 625LCF | 2.4856 | N06626 | 58Ni-21Cr-9Mo-3.5Nb-1CO-0.02C |
| INCONEL Alloy 686 | 2.4606 | N06686 | 57Ni-21Cr-16Mo-4W-0.01C |
| INCONEL Alloy 690 | 2.4642 | N06690 | 58Ni-30Cr-9Fe-0.2Cu-0.02C |
| INCONEL Alloy 718 | 2.4668 | N07718 | 52Ni-19Cr-5Nb-3Mo-1Ti-0.6Al-0.02C |
| INCONEL Alloy 750 | 2.4669 | N07750 | 70Ni-15Cr-6Fe-2.5Ti-0.06Al-1Nb-0.02C |
What ASTM standards of Inconel Tube can Gnee produce?
| Standard | Description |
| ASTM B163 | Standard Specification for Nickel-Chromium Alloys Seamless Tubes and Tubular Products |
| ASTM B167 | Standard Specification for Nickel-Chromium Alloys Welded Tubes and Tubular Products |
| ASTM B516 | Standard Specification for Nickel-Chromium Alloy Clad Steel Tubes |
| ASTM B444 | Standard Specification for Nickel-Chromium-Molybdenum Alloys Seamless Tubes |
| ASTM B775 | Standard Specification for Welded Nickel-Chromium-Molybdenum Alloys Tubes |
Size of Inconel Pipe
| Type | Outer Diameter (OD) | Wall Thickness (WT) | Length |
| Seamless | 6mm – 273mm | 0.5mm – 20mm | Up to 12m |
| Welded | 6mm – 1219mm | 0.5mm – 30mm | Customizable |
Features and Advantages
- High-Temperature Resistance – Inconel pipes maintain excellent strength and integrity at high temperatures (up to 2000°F/1093°C), making them ideal for extreme heat environments.
- Corrosion Resistance – Outstanding resistance to oxidation, sulfidation, and corrosion in both high-temperature and high-pressure environments, especially in acidic, alkaline, and seawater applications.
- Durability – Exceptional fatigue and thermal-fatigue strength, enabling long-lasting performance even under extreme thermal cycling.
- High Strength-to-Weight Ratio – Provides high tensile and yield strength, ensuring reliability while maintaining relatively low weight, especially in aerospace and automotive applications.
- Weldability – Easy to weld and form into complex shapes, making it ideal for custom applications and projects that require precise fabrication.
- Oxidation Resistance – Excellent oxidation resistance at elevated temperatures, particularly useful in applications involving high-temperature gases or oxidizing environments.
Parameter Information
Chemical Composition
| Element | Inconel 600 | Inconel 625 | Inconel 718 |
| Nickel | 72.0 min | 58.0 min | 50.0 – 55.0 |
| Chromium | 14.0 – 17.0 | 20.0 – 23.0 | 17.0 – 21.0 |
| Iron | 6.0 – 10.0 | 5.0 max | Bal. |
| Molybdenum | 0.5 max | 8.0 – 10.0 | 2.8 – 3.3 |
| Copper | 0.5 max | – | – |
| Titanium | 0.3 max | 0.4 max | 0.65 – 1.15 |
| Aluminum | 0.3 max | 0.4 max | 0.20 – 0.80 |
| Carbon | 0.15 max | 0.1 max | 0.08 max |
| Silicon | 0.5 max | 0.5 max | 0.35 max |
| Sulfur | 0.015 max | 0.015 max | 0.015 max |
| Phosphorus | 0.015 max | 0.015 max | 0.015 max |
Mechanical Property
| Property | Inconel 600 | Inconel 625 | Inconel 718 |
| Tensile Strength | 550 – 690 MPa | 760 – 930 MPa | 965 – 1035 MPa |
| Yield Strength (0.2% offset) | 240 – 415 MPa | 345 – 415 MPa | 550 – 790 MPa |
| Elongation | 30% min | 30% min | 20% min |
| Hardness (Rockwell C) | HRB 88 max | HRB 95 max | HRB 40 – 55 |
| Young’s Modulus | 207 GPa | 207 GPa | 207 GPa |
| Poisson’s Ratio | 0.29 | 0.29 | 0.29 |
Physical Property
| Property | Inconel 600 | Inconel 625 | Inconel 718 |
| Density | 8.47 g/cm³ | 8.44 g/cm³ | 8.19 g/cm³ |
| Melting Point | 1,371°C (2,500°F) | 1,345-1,358°C (2,453-2,476°F) | 1,260-1,330°C (2,300-2,426°F) |
| Thermal Conductivity | 14.9 W/m·K at 100°C | 12.6 W/m·K at 100°C | 10.1 W/m·K at 100°C |
| Specific Heat Capacity | 0.107 cal/g°C (25°C) | 0.098 cal/g°C (25°C) | 0.098 cal/g°C (25°C) |
| Electrical Resistivity | 1.03 μΩ·m (20°C) | 1.29 μΩ·m (20°C) | 1.26 μΩ·m (20°C) |
| Magnetic Permeability | 1.002 (annealed condition) | 1.0006 (annealed condition) | 1.003 (annealed condition) |
Application
- Aerospace – Engine components, turbines, and exhaust systems.
- Petrochemical – Heat exchangers, reactors, and furnace components.
- Marine – Corrosion-resistant components in seawater environments.
- Power Generation – Gas turbines and boiler systems.
- Chemical Processing – Equipment for handling aggressive chemicals.
- Nuclear – Reactor core components and coolant systems.
- Heat Treatment – Furnace components and high-temperature equipment.





























































































