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Girgaon, Mumbai - 400004
Inconel 718 Tubes Supplier in India
What Are Inconel 718 Tubes?
Inconel 718 Tubes are nickel-chromium-iron alloy tubes developed for applications requiring high strength, excellent corrosion resistance and reliable performance at elevated temperatures. Inconel 718, designated as UNS N07718, is a precipitation-hardenable nickel alloy containing niobium, molybdenum, titanium and aluminium to provide high mechanical strength and stability.
Inconel 718 Tubes are known for their high tensile and yield strength, excellent fatigue resistance, good corrosion resistance, creep resistance and outstanding performance at elevated temperatures. These properties make them suitable for demanding applications where conventional stainless steels and nickel alloys may not provide the required combination of strength and temperature resistance.
These tubes are used in aerospace engines, gas turbines, power generation, oil and gas equipment, chemical processing, heat exchangers and other high-performance industrial systems. The appropriate tube size, wall thickness, heat treatment, finish and condition are selected according to the application and operating requirements.
Kamal Steels is a reliable Inconel 718 Tubes Supplier and Exporter in India, supplying tubes in different sizes, wall thicknesses, lengths and finishes according to customer and project requirements. We also cater to international requirements with suitable export packaging and documentation.
Table of Contents
- Inconel 718 Tube Specifications
- Inconel 718 Tube Size Chart
- Inconel 718 Tube Weight Chart
- Inconel 718 Tube Standards
- Inconel 718 Tube Features
- Inconel 718 Tube Chemical Composition
- Inconel 718 Tube Mechanical Properties
- Inconel 718 Tube Equivalent Grades
- Inconel 718 Tube vs Other Inconel Grades
- Inconel 718 Tube Applications
- Industries Using Inconel 718 Tubes
- Frequently Asked Questions
Inconel 718 Tube Specifications
Inconel 718 Tubes are high-strength nickel-chromium-iron alloy tubes designed for demanding applications involving elevated temperatures, mechanical loads and corrosive environments. The alloy is designated as UNS N07718 and is widely used where high strength and resistance to creep and fatigue are required.
| Specification | Inconel 718 Tubes |
|---|---|
| Material | Nickel-Chromium-Iron Alloy |
| Grade | Inconel 718 |
| UNS | N07718 |
| Product Type | Seamless / As specified |
| Outside Diameter | As per requirement |
| Wall Thickness | As per requirement |
| Length | Random, Fixed or Customized |
| Heat Treatment | Solution Annealed / Age Hardened as specified |
| Finish | Annealed / Pickled / As required |
Inconel 718 Tube Size Chart
Inconel 718 Tubes are available in different outside diameters and wall thicknesses for aerospace, power generation, oil and gas and other high-performance applications. Customized dimensions can also be supplied according to customer drawings and project requirements.
| Tube Size | Outside Diameter (mm) | Wall Thickness | Length |
|---|---|---|---|
| 1/4" | 6.35 | As required | As required |
| 1/2" | 12.70 | As required | As required |
| 3/4" | 19.05 | As required | As required |
| 1" | 25.40 | As required | As required |
| 1-1/2" | 38.10 | As required | As required |
| 2" | 50.80 | As required | As required |
| 3" | 76.20 | As required | As required |
| 4" | 101.60 | As required | As required |
| 6" | 152.40 | As required | As required |
Kamal Steels can supply Inconel 718 Tubes in customized diameters, wall thicknesses and lengths according to customer drawings and project requirements.
Inconel 718 Tube Weight Chart
The theoretical weight of an Inconel 718 Tube depends on its outside diameter, wall thickness and length. The following values are approximate reference values based on nominal dimensions and the typical density of Inconel 718.
| Outside Diameter (mm) | Wall Thickness (mm) | Inside Diameter (mm) | Approx. Weight (kg/m) |
|---|---|---|---|
| 12.70 | 1.00 | 10.70 | 0.37 |
| 19.05 | 1.50 | 16.05 | 0.85 |
| 25.40 | 2.00 | 21.40 | 1.57 |
| 31.75 | 2.50 | 26.75 | 2.48 |
| 38.10 | 3.00 | 32.10 | 3.50 |
| 50.80 | 3.00 | 44.80 | 4.85 |
| 63.50 | 3.00 | 57.50 | 6.18 |
| 76.20 | 4.00 | 68.20 | 9.88 |
| 101.60 | 5.00 | 91.60 | 16.05 |
Note: The values shown are approximate theoretical weights. Actual tube weight may vary according to dimensions, tolerances, density and manufacturing conditions.
Inconel 718 Tube Standards
Inconel 718 Tubes can be supplied according to applicable ASTM, ASME, AMS and other industry specifications depending on the product form, application and customer requirements. The exact standard should be confirmed for the required tube dimensions and service.
| Standard / Designation | Details |
|---|---|
| UNS | N07718 |
| ASTM / ASME | Applicable nickel-alloy tube specification as required |
| AMS | Applicable aerospace material specification as required |
| Grade | Inconel 718 |
| Material Type | Precipitation-Hardenable Nickel Alloy |
Inconel 718 Tube Features
Inconel 718 Tubes provide an excellent combination of high strength, corrosion resistance and high-temperature performance. The alloy can maintain useful mechanical properties under demanding operating conditions.
- Very high tensile and yield strength
- Excellent fatigue resistance
- Good creep resistance
- Excellent high-temperature strength
- Good corrosion resistance
- Good resistance to oxidation
- Excellent resistance to stress rupture
- Good weldability for a precipitation-hardenable nickel alloy
- Suitable for aerospace and gas-turbine applications
- Reliable performance under demanding mechanical loads
Inconel 718 Tube Chemical Composition
Inconel 718 contains nickel, chromium and iron with controlled additions of niobium, molybdenum, titanium and aluminium. These alloying elements contribute to the high strength, corrosion resistance and elevated-temperature performance of the material.
| Element | Composition (%) |
|---|---|
| Nickel | 50.0 - 55.0 |
| Chromium | 17.0 - 21.0 |
| Iron | Balance |
| Niobium + Tantalum | 4.75 - 5.50 |
| Molybdenum | 2.80 - 3.30 |
| Titanium | 0.65 - 1.15 |
| Aluminium | 0.20 - 0.80 |
| Cobalt | 1.00 max. |
| Carbon | 0.08 max. |
| Manganese | 0.35 max. |
| Silicon | 0.35 max. |
Inconel 718 Tube Mechanical Properties
Inconel 718 is a precipitation-hardenable nickel alloy known for its high mechanical strength. Its final properties depend on product form, heat treatment, dimensions and applicable specification.
| Property | Typical Value |
|---|---|
| Tensile Strength | Approx. 1240 MPa |
| Yield Strength | Approx. 1035 MPa |
| Elongation | Approx. 12% |
| Density | Approx. 8.19 g/cm³ |
| Melting Range | Approx. 1260 - 1336°C |
Note: Mechanical properties vary according to heat treatment, product form, dimensions and specification. Certified material test reports should be used for final verification.
Inconel 718 Tube Equivalent Grades
| Designation | Inconel 718 |
|---|---|
| UNS | N07718 |
| EN | 2.4668 |
| Trade Name | Inconel 718 |
| Material Type | Precipitation-Hardenable Nickel Alloy |
Inconel 718 Tube vs Other Inconel Grades
Different Inconel grades are selected according to the required combination of strength, temperature resistance, corrosion resistance and operating conditions. Inconel 718 is particularly valued for its high strength and fatigue resistance at elevated temperatures.
| Grade | Main Characteristics | Typical Applications |
|---|---|---|
| Inconel 600 | Good corrosion and oxidation resistance | Chemical processing and high-temperature applications |
| Inconel 601 | Excellent oxidation resistance at elevated temperatures | Furnaces and heat-treatment equipment |
| Inconel 625 | High strength with excellent corrosion resistance | Marine, chemical, oil & gas and aerospace |
| Inconel 718 | Very high strength, fatigue resistance and high-temperature performance | Aerospace, gas turbines and high-performance engineering |
Inconel 718 Tube Applications
Inconel 718 Tubes are used in demanding applications where high strength, fatigue resistance, corrosion resistance and elevated-temperature performance are required.
Aerospace Engines
Used in selected aircraft engine components and high-temperature aerospace systems requiring high strength and fatigue resistance.
Gas Turbines
Used in gas turbine components and high-temperature systems exposed to mechanical loads and elevated temperatures.
Oil & Gas Equipment
Used in selected downhole, drilling and high-pressure equipment requiring high strength and corrosion resistance.
Power Generation
Used in selected power-generation and turbine components operating under high temperatures and mechanical stress.
Chemical Processing
Used in selected chemical processing equipment requiring strength and resistance to corrosive environments.
Heat Exchangers
Used in specialized heat-transfer equipment where high-temperature mechanical performance is required.
Industries Using Inconel 718 Tubes
Kamal Steels supplies Inconel 718 Tubes to industries requiring high-performance nickel-alloy tubing for elevated-temperature and mechanically demanding environments.
Aerospace Industry
Used in aerospace engine and high-temperature components requiring high strength, fatigue resistance and reliability.
Gas Turbine Industry
Used in turbine systems and components exposed to high temperatures, cyclic loads and demanding service conditions.
Oil & Gas Industry
Used in selected drilling, downhole and offshore equipment requiring high mechanical strength and corrosion resistance.
Power Generation Industry
Used in high-performance turbine and power-generation equipment operating at elevated temperatures.
Chemical Industry
Used in selected chemical processing systems where corrosion resistance and mechanical strength are required.
Precision Engineering
Used for specialized engineering components requiring high strength and dimensional reliability.
Frequently Asked Questions
Inconel 718 Tubes are high-performance precipitation-hardenable nickel-chromium alloy tubes manufactured from Inconel Alloy 718 (UNS N07718 / WNR 2.4668). They are designed for applications requiring exceptional mechanical strength, corrosion resistance, and high-temperature performance.
Our Inconel 718 Tubes are manufactured according to ASTM B163, ASTM B670, ASTM B516, ASTM B517, ASME SB163, and ASME SB670 standards.
Inconel 718 Tubes provide exceptional tensile strength, outstanding fatigue resistance, excellent creep resistance, superior oxidation resistance, excellent weldability, and long service life in demanding environments.
They are widely used in aerospace engines, gas turbines, offshore oil & gas platforms, nuclear power stations, pressure vessels, heat exchangers, chemical processing plants, and power generation equipment.
Inconel 718 maintains excellent mechanical strength, creep resistance, and corrosion resistance in continuous service at temperatures up to approximately 700°C.
Each tube undergoes PMI Testing, Chemical Analysis, Mechanical Testing, Hydrostatic Testing, Ultrasonic Testing (UT), Eddy Current Testing (ECT), Flattening, Flaring, Dimensional Inspection, and Visual Inspection.
Its exceptional strength-to-weight ratio, outstanding fatigue resistance, creep resistance, and high-temperature stability make Inconel 718 one of the preferred alloys for aerospace and gas turbine components.
Yes. Every shipment includes EN 10204 3.1/3.2 Mill Test Certificates, inspection reports, complete material traceability, and third-party inspection certificates upon request.
Yes. Kamal Steels exports Inconel 718 Tubes worldwide with export-standard packaging, complete documentation, and timely international delivery.
Kamal Steels offers ASTM-compliant Inconel 718 Tubes with ready stock, certified quality, competitive pricing, stringent quality control, export-standard packaging, complete documentation, and dependable worldwide delivery for critical industrial applications.