
Inconel 718 Pipe Property Information
Inconel 718 pipes are renowned for their exceptional strength, corrosion resistance, and high-temperature performance, making them suitable for demanding applications in the aerospace, oil and gas, and nuclear industries. These pipes are typically made from a nickel-chromium alloy that can withstand temperatures ranging from cryogenic to 1400°F (760°C). Key properties include high tensile and yield strength, good weldability, and excellent creep and rupture strength at elevated temperatures.
Is Inconel 718 alloy magnetic?
Inconel 718 is generally considered non-magnetic. Although it contains nickel and iron, the alloy's structure and composition make it weakly magnetic, making it practically non-magnetic in most practical applications. However, it can become slightly magnetic after cold working or certain heat treatments.

Inconel 718 seamless pipe chemical composition
| Grade | C | Mn | Si | S | Cu | Fe | Ni | Cr |
| Inconel 718 | 0.08 max | 0.35 max | 0.35 max | 0.015max | 0.30 max | – | 50.00 – 55.00 | 17.00 – 21.00 |
UNS N07718 Tube Mechanical Properties
| Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| Inconel 718 | 8.2 g/cm3 | 1350 °C (2460 °F) | Psi – 1,35,000 , MPa – 930 | Psi – 75,000 , MPa – 482 | 45 % |
Inconel 718 Seamless Pipe Gauge Chart
| GAUGE | THICKNESS RANGE (INCH) | TYPICAL VALUE (INCH) |
|---|---|---|
| 22 | 0.025 - 0.029 | 0.028 |
| 20 | 0.031 - 0.035 | 0.035 |
| 19 | 0.038 - 0.042 | 0.042 |
| 18 | 0.044 - 0.049 | 0.049 |
| 17 | 0.053 - 0.058 | 0.058 |
| 16 | 0.060 - 0.065 | 0.065 |
| 15 | 0.066 - 0.074 | 0.072 |
| 14 | 0.075 - 0.085 | 0.083 |
| 13 | 0.087 - 0.097 | 0.095 |
| 12 | 0.101 - 0.111 | 0.109 |
| 11 | 0.112 - 0.122 | 0.12 |
| 10 | 0.126 - 0.136 | 0.134 |
| 9 | 0.140 - 0.150 | 0.148 |
| 8 | 0.157 - 0.167 | 0.165 |
| 7 | 0.175 - 0.185 | 0.18 |

Gnee Steel specializes in the production of various nickel-based alloys. Gnee Steel's product packaging includes steel strapping: Pipes with an outer diameter of 3 inches or less are typically strapped together with polypropylene film to prevent rust during sea transportation, and then secured with steel strapping. Wooden boxes/crates: Pipes are typically packaged in wooden boxes or crates to protect them during transportation, especially those that are longer or have larger diameters. Seaworthy export packaging: Suppliers typically use standard seaworthy export packaging methods, which may include a variety of materials and techniques to protect the pipes during transportation. Tarpaulin packaging: This prevents rainwater, seawater, and other external factors from penetrating the export wooden crates during transportation. Gnee Steel specializes in the production and sale of alloy materials. Gnee Steel's products are widely used in aerospace, chemical, power, automotive, and nuclear energy industries, and we can provide customized alloy material solutions based on customer needs. For alloy material pricing inquiries or customized alloy material solutions, please contact us for a quote at ss@gneemetal.com





