Product Overview –Inconel 718 Tubes
Inconel 718 Tubes, are high-performance precipitation-hardened nickel-chromium alloy tubes engineered for applications requiring exceptional mechanical strength, outstanding corrosion resistance, and reliable performance under extreme temperatures and high-pressure conditions. Designated as UNS N07718, this alloy is strengthened by the addition of niobium, molybdenum, titanium, and aluminum, providing superior tensile strength and fatigue resistance compared to many conventional nickel alloys.
Unlike standard nickel alloys, Inconel 718 maintains excellent mechanical properties from cryogenic temperatures up to approximately 700°C (1290°F). Its resistance to oxidation, stress corrosion cracking, chloride attack, and creep deformation makes it a preferred material for demanding industrial environments.
Inconel 718 Tubes are extensively used in aerospace engines, gas turbines, nuclear reactors, offshore platforms, subsea systems, oil & gas processing, chemical plants, power generation, pressure vessels, hydraulic tubing, and high-performance heat exchanger systems.
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As a trusted supplier, exporter, and stockist of Inconel 718 Tubes,we serve customers across the UAE, Saudi Arabia, Qatar, Oman, Kuwait, Bahrain, India, Africa, Europe, and Southeast Asia, delivering quality products, competitive pricing, and reliable logistics for industrial and infrastructure projects.
Material Specification -Inconel 718 Tubes
Technical Specifications –Inconel 718 Tubes
| Outside Diameter: | 6.35 mm to 114.3 mm |
| Wall Thickness: | 0.5 mm to 12 mm |
| Length: | Up to 18 Meters & Custom Length |
| Pipe Ends: | Plain End, Annealed Ends |
| Product Type | Seamless & Welded Pipes |
| Surface Finish: | Bright Annealed, Pickled, Polished |
| ASTM : | ASTM B983 |
| AMS: | AMS 5589 / AMS 5590 |
| Alloy Family: | Nickel-Chromium Precipitation Hardened Alloy |
| Available Sizes: | ¼", ⅜", ½", ⅝", ¾", 1", 1¼", 1½", 2", 2½", 3", 4" |
Custom lengths and project-specific sizes are available on request.
Third Party Inspection Available
All specifications are in accordance of Inconel 625. Mechanical and chemical values are as per standard limits. Mill Test Certificates (MTC) available upon request.
Chemical Composition –Inconel 718 Tubes
(As per ASTM specification)
| Element | Max (%) |
|---|---|
| Iron (Fe) | Balance |
| Carbon (C) | ≤0.08% |
| Nickel (Ni) | 58.0 Min% |
| Chromium (Cr) | 17.00 – 21.00% |
| Manganese (Mn) | ≤0.35% |
| Silicon (Si) | ≤0.35% |
| Boron (B) | ≤0.006% |
| Sulphur (S) | ≤0.015% |
| Aluminum (Al) | 0.20 – 0.80% |
| Molybdenum (Mo) | 2.80 – 3.30% |
| Niobium + Tantalum (Nb + Ta) | 4.75 – 5.50% |
| Phosphorus (P) | ≤0.015% |
| Titanium (Ti) | ≤0.40 |
| Cobalt (Co) | ≤1.00 |
Note: The addition of niobium, molybdenum, titanium, and aluminum gives Inconel 718 exceptional precipitation-hardening capability, resulting in excellent strength, fatigue resistance, and high-temperature performance.
Mechanical Properties of Inconel 718 Tubes
| Property | Value (Min) |
|---|---|
| Yield Strength (0.2%) | ≥1034 MPa |
| Tensile Strength | ≥1275 MPa |
| Elongation | ≥12% |
| Melting Point | 1260–1336°C |
| Density | 8.19 g/cm³ |
| Hardness | 331 HB Max |
| Modulus of Elasticity | 200 GPa |
Note :Inconel 718 offers one of the highest strength levels among commercially available nickel alloys while maintaining excellent corrosion resistance and dimensional stability under severe operating conditions.
Why Choose Inconel 718 Tubes?
Applications of Inconel 718 Tubes
Where Inconel 718 Tubes are used:
- 🔸Chemical Processing Equipment
- 🔸Gas Turbine Exhaust Systems
- 🔸Combustion Chambers
- 🔸Furnace Rollers
- 🔸High Pressure Piping
- 🔸Pressure Vessels
- 🔸Mining Equipment
- 🔸Furnace Components
- 🔸Decorative Steel Projects
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Key Advantages of Inconel 718 Tubes
Best Alternatives to Inconel 718 Tubes
- This process provides:
- 🔸 Superior corrosion resistance in seawater
- 🔸 Better resistance to pitting and crevice corrosion
- 🔸 Excellent weldability
Best for:Offshore, marine, desalination, and aggressive chemical processing.
- 🔸 Outstanding resistance to strong acids
- 🔸 Excellent chemical corrosion resistance
- 🔸 Superior performance in harsh process environments
Best for: Chemical processing, fertilizer plants, and pharmaceutical industries.
- 🔸 Excellent strength-to-weight ratio
- 🔸 Outstanding seawater corrosion resistance
- 🔸 Lightweight construction
Best for: Aerospace, marine engineering, offshore structures, and defense applications.