Dengwei International Trade is mainly engaged in various high-end steel import and export businesses, and is a brand enterprise in the metal circulation industry.
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Inconel 718 is a high-strength, nickel-based superalloy designed for high-temperature and high-stress applications. This alloyed steel pipe is known for its exceptional creep resistance, corrosion resistance, weldability, and mechanical strength at temperatures up to 700°C. It is widely adopted in aerospace, nuclear, chemical, and marine sectors where thermal fatigue and oxidation resistance are critical.
Excellent high-temperature tensile and creep-rupture strength
Outstanding corrosion and oxidation resistance
Good weldability without post-weld cracking
Suitable for cryogenic to 700°C applications
Conforms to multiple standards: UNS N07718, AMS 5596, GH4169, 2.4668
| Element | Content (%) |
|---|---|
| Nickel (Ni) | 50.0 – 55.0 |
| Chromium (Cr) | 17.0 – 21.0 |
| Iron (Fe) | Balance |
| Niobium + Tantalum (Nb + Ta) | 4.75 – 5.50 |
| Mo (Molybdenum) | 2.80 – 3.30 |
| Titanium (Ti) | 0.65 – 1.15 |
| Aluminum (Al) | 0.20 – 0.80 |
| Property | Typical Value |
|---|---|
| Tensile Strength | ≥ 965 MPa |
| Yield Strength (0.2% offset) | ≥ 550 MPa |
| Elongation | ≥ 30% |
| Hardness | ≤ 363 HB |
| Service Temperature | -253°C to 700°C |
Inconel 718 steel pipe is widely used in:
Aerospace engine components (discs, shafts, casings)
Gas turbines and combustors
High-temperature fasteners and springs
Nuclear reactors and marine equipment
Heat exchangers and chemical processing units
| Standard | Designation |
|---|---|
| UNS | N07718 |
| AMS | 5596 |
| DIN | 2.4668 |
| Chinese Equivalent | GH4169 / NS 4301 |
We offer precision machining and customized dimensions for Inconel 718 pipes. Surface finish, cut length, annealing, pickling, and testing (UT, RT, PMI, etc.) are available as per request. OEM and small-batch prototyping support is also provided for specialized aerospace and engineering projects.
We offer a wide range of outer diameters (OD) from 6 mm to 219 mm and wall thicknesses from 0.5 mm to 20 mm. Custom sizes can be manufactured on request.
Yes. We provide MTC (Material Test Certificate) along with SGS, BV, or TUV third-party inspection reports upon customer request.
Yes. Inconel 718 has good weldability and is widely used in applications requiring strong weld joints. No post-weld heat treatment is necessary in most cases.
For regular sizes in stock, delivery can be arranged within 7–10 working days. Custom production may take 15–30 days depending on the complexity.
