An application where the Inconel 718 tubing is in gas turbines or what is also referred to as a combustion turbine. A gas turbine is a device that is continuous and is an internal combustion engine.

Inconel 718 Tubing

Inconel 718 Tubing

Alloy 718 Seamless Pipe

Alloy 718 Seamless Pipe

AMS 5589 Tube

AMS 5589 Tube

 

A major roadblock during the construction of a turbine is selecting an appropriate material that aids to combat creep. In this instance, Inconel 718 is an ideal metal, which not only offers good tensile, but also good fatigue, along with higher creep, and rupture strength. Moreover, creep occurring in these turbines is a result of both high stress and elevated temperatures.  Since Inconel 718 is a high strength alloy, the UNS N07718 tube is able to withstand temperature as high as about  1300°F.

Hence, our clients are not let down by the efficient performance of this nickel based AMS 5590 Alloy 718 seamless tube. The SAE specified  AMS 5590 is a solution annealed alloy. This corrosion resistant AMS 5590 designated Inconel 718 pipe is annealed at a temperature of 1950°F; following which the alloy is cooled rapidly, preferably in water. Once cooled these tubes are precipitation hardened at 1400°F for a duration of about 10 hours and the Inconel 718 tube is furnace cooled to a temperature of about 1200°F. Ageing then takes place at the same temperature for 20 hours.

The AMS 5589 Alloy 718 seamless pipe is well suited for applications involving fluid lines and components, where the primary requirement is resistance to stress-rupture of up to a temperature of 1300°F. In addition, the AMS 5589 specified Alloy 718 seamless tubing has good oxidation resistance up to a temperature of 1800°F.

 

Did You Know ?

Inconel 718 Tubing is used in Aerospace engines because it is tough upto 1300°F. Genrally Manufacturers produce Seamless pipes and tubes in Alloy 718, But welded can be arranged on request by seam welding of Coil.

 

standards and specifications of Inconel 718 Tubing

ASME and ASTM designation
ASTM B163/ ASME SB 163

Inventory Size Ranges
15" to 150″NB Inch
Dimension Table ASME, ASTM and API
Size table of Seamless Pipes Wall Thikness: 0.5mm to 20mm
Size: 4mm to 219mm
Size range of Welded Pipes 5.0 to 1219.2 mm
EFW Pipes available Size 5.0 to 1219.2 mm
Popular For Inconel 718 Large Diameter Pipe
Pipe Schedule as per ASME B36.10M or B36.19M SCH160 STD, SCH10, SCH40, SCH80, SCH5,
List of pipe types Welded / ERW / Seamless / LSAW/ Fabricated Pipes
Most Common Pipe Form Hydraulic, Round Form Etc
Pipe length type Double Random, Cut Length & Single Random
Pipe End Type Abbreviations Beveled End, Plain End, Theaded

 

Most Selling Types Of Alloy 718 Tubing
Uns N07718 Tube
Uns N07718 Tube
Nickel Alloy 718 Tubing
Nickel Alloy 718 Tubing
Alloy 718 Square Tube
Alloy 718 Square Tube
Alloy 718 Annealed Tube
Alloy 718 Annealed Tube
Inconel 718 pipe
Inconel 718 pipe
Alloy 718 Tube
Alloy 718 Tube
Alloy 718 Seamless Tubing
Alloy 718 Seamless Tubing
Ams 5590 Tube
Ams 5590 Tube

 

Size table of Alloy 718 Seamless Pipe

Alloy718 seamless Pipe

Size:15" to 150″NB Inch
Wall Thikness: 0.5 to 20mm

 

Chemical Resistance Guide of WERKSTOFF NR.2.4668 Tubing
Grade C Mn Si S Cu Fe Ni Cr
718 0.08 max 0.35 max 0.35 max 0.015max 0.30 max 50.00 – 55.00 17.00 – 21.00

 

Equivalent Material of UNS N07718 Tubing
STANDARD WERKSTOFF NR. UNS JIS BS GOST AFNOR EN
718 2.4668 N07718 NCF 718

 

ASTM B163 Alloy 718 Tubing Mechanical Properties
Grade Elongation   Density Tensile Strength Melting Point   Strength of Yield (0.2%Offset)
718 45 %   8.2 g/cm3 Psi – 1,35,000 , MPa – 930 1350 °C (2460 °F)   Psi – 75,000 , MPa – 482

 

Why alloy 718 tubes are used for aerospace components and oilfield applications?

The alloy 718 is a nickel chromium alloy that could be precipitation hardened. It has very high creep rupture strengths at elevated temperatures at about 700 degrees Celsius. It is a high strength alloy with high corrosion resistance properties. In addition to hardening, it could also be readily fabricated. It has minimum tensile strength at 1100MPa and minimum yield strength at 980MPa which are both very high values. So the material is suitable to operate in cryogenic applications, aviation and aerospace and other high temperature services. Since the oilfield applications can encounter highly corrosive content and high temperatures, the alloy 718 is used in aerospace components and in oilfield applications.