Inconel 718 Pipe
Inconel 718 Pipe Supplier and Manufacturer
Being a reliable supplier of Inconel 718 pipes, Steel Pipe & Tubes specialises in high-performance piping that performs exceptionally well under extreme temperatures, pressures, and corrosive conditions. Our Inconel 718 Tubes are available in ASTM B670 & ASME SB 670 to provide enhanced mechanical properties, resistance to fatigue, and excellent durability. At Stellar Alloys Steel Pipe & Tubes, we provide seamless as well as welded Inconel 718 pipes and other Inconel pipes also in a range of sizes to cater to different demands within the aerospace, oil & gas, power plant, or high-temperature processing industries.
With our focus on quality control, traceability, and secure packaging for international shipping, we enable international projects to proceed with confidence. At Stellar Alloys Steel Pipes and Tubes, buyers of high-quality Inconel pipes can also explore our other Inconel product ranges, while our overall Inconel range gives buyers access to different grades along with different specifications within one reliable supplier, guaranteeing quality, conformance, and punctuality.
Table of Contents
- ASTM B670 UNS N07718 Seamless Inconel 718 Pipe
- ASME SB 670 Werkstoff Nr. 2.4668 Welded Pipe
- Types of Inconel 718 Pipe
- Inconel 718 Pipe and Tube Overview
- ASTM B670 Inconel 718 Pipe & Tube Specification
- Chemical Composition of Inconel 718 Pipe & Tube
- Mechanical Properties of Inconel 718 Pipe & Inconel 718 Tube
- Equivalent Grades of Inconel 718 Pipe & Tube
- Inconel 718 Pipe Size Dimensions According to WERKSTOFF 2.4668
- Dimensional Data and Technical Parameters of Inconel 718 Pipe & Tube
- Applications of Inconel 718 Pipe
- Why Buy Inconel 718 Pipe from Steel Pipe & Tubes?
- Frequently Asked Questions on Inconel 718 Pipe
ASTM B670 UNS N07718 Seamless Inconel 718 Pipe
The Inconel 718 seamless pipes are widely adopted for environments that tend to put this material in the most extreme temperatures or stress. The pipes meet the ASTMB670 UNS N07718 specifications. They can withstand high temperatures and high stress without failing. They resist oxidation and creep. They can perform their duties for a long time when put to extreme use. If you’re looking for another high-performance nickel alloy that can resist high temperatures and stress and can save your application from oxidation and creep, then Inconel 625 pipes are suitable for any application that requires high resistance to corrosion.
ASME SB 670 Werkstoff Nr. 2.4668 Welded Pipe
Inconel 718 welded pipe is a cost-effective solution for applications that demand world-class strength, excellent corrosion resistance, and precise dimensional accuracy. It’s manufactured as per ASME SB 670 Werkstoff Nr. 2.4668 specifications. These Inconel 718 welded pipes are made from high-quality Inconel 718 plates or coils and are further processed using advanced welding technology and extensive testing. These Inconel 718 pipes have good resistance to oxidation, fatigue life under service conditions, and resistance to stress corrosion cracking. Apart from Inconel 718 pipe, we also provide another Inconel 600 pipe that is ideal for applications where high temperature and corrosive environments are required
Types of Inconel 718 Pipe
Inconel 718 Seamless Pipe
Inconel 718 Welded Pipe
Inconel 718 Hollow Pipe
Inconel 718 Round Pipe
Inconel 718 Square Pipe
Inconel 718 Rectangle Pipe
Inconel 718 Pipe and Tube Overview
The Inconel 718 pipe and tubes are designed to cater to handling demanding operating conditions, where there is a requirement for high strength, corrosion resistance, and thermal stability. Generally, Inconel 718 pipes and tubes are primarily used for their application in pressure-containing and structural uses, whereas Inconel 718 tube is selected for their application in heat exchangers, instrumentation lines, and specialized systems requiring more precise dimensional tolerances. Both Inconel 718 pipes and tubes are made by using precipitation-hardened alloy 718 tubes which are better in terms of resistance to fatigue and creep as well as stability at higher operating temperatures. Examples of properties in Inconel alloy are oxidation, corrosion, and stability in the presence of higher temperatures, and thus it finds a very high application in aerospace, power, and oil and gas. This is made by specifying a defined difference between Inconel pipe and tube, which would enable the engineers and purchasers to make an appropriate selection on either the tube or the pipe that meets the functionality as well as international requirements.
ASTM B670 Inconel 718 Pipe & Tube Specification
ASTM B670 Inconel 718 pipe and Inconel 718 tube are manufactured to deliver exceptional strength, corrosion resistance, and performance in high-temperature and high-pressure applications.
| Parameter | Details |
| ASTM Specification | ASTM B670 / ASME SB670 |
| Global Standards | ASTM, ASME, JIS, AISI, AMS, EN, SAE, DIN, NF, TOCT, DS, DTD, GB |
| Seamless Pipe Size | 4 to 219 mm (W.T.: 0.5 to 20 mm) |
| Welded / EFW Pipe Size | 5.0 mm – 1219.2 mm |
| Wall Thickness (Gauges) | 10, 12, 14, 16, 18, 20 SWG/BWG |
| Pipe Schedule | SCH5, SCH10, SCH10S, SCH20, SCH30, SCH40, SCH40S, STD, SCH80, XS, SCH60, SCH120, SCH140, SCH160, XXS |
| Length | Single Random, Double Random, Standard & Cut Length |
| Surface Finish | Polished, AP (Annealed & Pickled), BA (Bright & Annealed), MF, NO.1, NO.4, 2B, HL, 8K, Mirror Finish |
| Available Forms | Round, Square, Hollow, Rectangular, Hydraulic, Coiled, Straight, “U” Shape, Pan Cake Coils |
| Manufacturing Type | Seamless, ERW, EFW, Welded, Fabricated, CDW, DOM, CEW |
| End Connection | Plain End, Beveled End, Threaded, Screwed Ends |
| Standard Marking | Standard, Grade, OD, Thickness, Length, Heat No. |
Chemical Composition of Inconel 718 Pipe & Tube
The chemical composition of Inconel 718 pipe is carefully controlled to ensure high strength, excellent corrosion resistance, and stability at elevated temperatures.
| Grade / Limit | C | Mn | Si | Fe | S | Cr | Al | Ni |
| 718 (Min.) | — | — | — | Balance | — | 17.0 | 0.25 | 50.0 |
| 718 (Max.) | 0.08 | 0.35 | 0.35 | Balance | 0.01 | 21.0 | 0.85 | 55.0 |
Mechanical Properties of Inconel 718 Pipe & Inconel 718 Tube
The mechanical properties of Inconel 718 pipe offer an excellent balance of strength, ductility, and thermal stability. Inconel 718 tube maintains high tensile and yield strength along with good elongation, making it suitable for high-stress and high-temperature service conditions.
| Grade | Density | Melting Point | Tensile Strength | Yield Strength (0.2% Offset) | Elongation |
| 718 | 8.14 g/cm³ | 1400 °C (2550 °F) | Psi – 80,000 , MPa – 550 | Psi – 32,000 , MPa – 220 | 30% |
Equivalent Grades of Inconel 718 Pipe & Tube
The equivalent grades of Inconel 718 pipe help ensure global compatibility across international standards. Inconel 718 tube is commonly designated as UNS N07718 and Euronorm 2.4668, allowing easy specification and acceptance in worldwide engineering and industrial applications.
| Grade | UNS No | Old British (BS) | Old British (EN) | Euronorm No | AFNOR | GOST | Japanese JIS |
| Inconel 718 | N07718 | — | — | 2.4668 | — | — | — |
Alloy 718 Physical Properties
The physical properties of Alloy 718 highlight its stability and reliability under extreme service conditions. Inconel 718 pipe and Inconel 718 tube exhibit consistent density, specific gravity, and a high melting range in both solution-treated and aged conditions, ensuring dependable performance in high-temperature applications.
| Solution Treated | Solution Treated and Aged | |
| Density | 0.296 lb/in3 (8.192 g/cm3) | 0.297 lb/in3 (8.22 g/cm3) |
| Specific Gravity | 8.19 | 8.22 |
| Melting Range | 2500-2600°F | 1370-1430°C |
Inconel 718 Pipe Size Dimensions According to WERKSTOFF 2.4668
Inconel 718 pipe size dimensions according to WERKSTOFF 2.4668 are manufactured with precise dimensional tolerances to ensure uniform wall thickness, strength, and reliability. These Inconel 718 tube dimensions comply with international standards, making them suitable for high-pressure, high-temperature, and critical engineering applications.
| Wall | Sizes ( O.D.) |
| .010 | 1/16″ , 1/8″ , 3/16″ |
| .020 | 1/16″ , 1/8″ , 3/16″ , 1/4″ , 5/16″ , 3/8″ |
| .012 | 1/8″ |
| .016 | 1/8″ , 3/16″ |
| .028 | 1/8″ , 3/16″ , 1/4″ , 5/16″ , 3/8″ , 1/2″ , 3/4″ , 1″ , 1 1/2″ , 2″ |
| .035 | 1/8″ , 3/16″ , 1/4″ , 5/16″ , 3/8″ , 7/16″ , 1/2″ , 16″ , 5/8″ , 3/4″ , 7/8″ , 1″ , 1 1/4″ , 1 1/2″ , 1 5/8″ , 2″ , 2 1/4″ |
| .049 | 3/16″ , 1/4″ , 5/16″ , 3/8″ , 1/2″ , 16″ , 5/8″ , 3/4″ , 7/8″ , 1″ , 1 1/8″ , 1 1/4″ , 1 1/2″ , 1 5/8″ , 2″ , 2 1/4″ |
| .065 | 1/4″ , 5/16″ , 3/8″ , 1/2″ , 16″ , 5/8″ , 3/4″ , 7/8″ , 1″ , 1 1/4″ , 1 1/2″ , 1 5/8″ , 1 3/4″ , 2″ , 2 1/2″ , 3″ |
| .083 | 1/4″ , 3/8″ , 1/2″ , 5/8″ , 3/4″ , 7/8″ , 1″ , 1 1/4″ , 1 1/2″ , 1 5/8″ , 1 7/8″ , 2″ , 2 1/2″ ,3″ |
| .095 | 1/2″ , 5/8″ , 1″ , 1 1/4″ , 1 1/2″ , 2″ |
| .109 | 1/2″ , 3/4″ , 1″ , 1 1/4″ , 1 1/2″ , 2″ |
| .120 | 1/2″ , 5/8″ , 3/4″ , 7/8″ , 1″ , 1 1/4″ , 1 1/2″ , 2″ , 2 1/4″ , 2 1/2″ , 3″ |
| .125 | 3/4″ , 1″ , 1 1/4″ , 1 1/2″ , 2″ , 3″ , 3 1/4″ |
| .134 | 1″ |
| .250 | 3″ |
| .375 | 3 1/2″ |
Dimensional Data and Technical Parameters of Inconel 718 Pipe & Tube
The dimensional data and technical parameters of Inconel 718 pipe are designed to meet strict quality and performance standards. Inconel 718 tube options are available in various diameters, wall thicknesses, and schedules to ensure accurate fit, structural integrity, and reliable operation in demanding industrial environments.
| Nominal Thickness (in) MM | Pipe Size (in) | Transverse Areas (in2) MM2 | Diameter (in) MM | Volume (ft3/ft) | Number of Threads per inch of Screw | Weight | Length of Pipe (ft per sq.0 foot of surface) | |||||
| Internal | External | Steel | Internal | External | (kg/m) | (lb/ft) | Internal Surface (ft) | External Surface (ft) | ||||
| 0.007 | 1/8 | 0.006 | 0.013 | 0.007 | 0.027 | 0.0405 | 0.00004 | 27 | 0.036 | 0.024 | 14.020 | 9.043 |
| 0.009 | ¼ | 0.010 | 0.023 | 0.013 | 0.036 | 0.0540 | 0.00007 | 18 | 0.063 | 0.042 | 10.049 | 7.007 |
| 0.009 | 3/8 | 0.019 | 0.036 | 0.017 | 0.049 | 0.0675 | 0.00013 | 18 | 0.084 | 0.057 | 7.075 | 5.066 |
| 0.011 | ½ | 0.030 | 0.055 | 0.025 | 0.062 | 0.0840 | 0.00021 | 14 | 1.026 | 0.085 | 6.014 | 4.055 |
| 0.011 | ¾ | 0.053 | 0.087 | 0.033 | 0.082 | 1.0050 | 0.00037 | 14 | 1.068 | 1.013 | 4.064 | 3.064 |
| 0.013 | 1 | 0.086 | 1.036 | 0.049 | 1.005 | 1.0315 | 0.00060 | 11 ½ | 2.050 | 1.068 | 3.064 | 2.090 |
| 0.014 | 1 ¼ | 1.050 | 2.016 | 0.067 | 1.038 | 1.0660 | 0.00104 | 11 ½ | 3.038 | 2.027 | 2.077 | 2.030 |
| 0.015 | 1 ½ | 2.004 | 2.084 | 0.080 | 1.061 | 1.0900 | 0.00141 | 11 ½ | 4.004 | 2.072 | 2.037 | 2.001 |
| 0.015 | 2 | 3.036 | 4.043 | 1.008 | 2.007 | 2.0375 | 0.00233 | 11 ½ | 5.043 | 3.065 | 1.085 | 1.061 |
| 0.020 | 2 ½ | 4.079 | 6.049 | 1.070 | 2.047 | 2.0875 | 0.00333 | 8 | 8.062 | 5.079 | 1.055 | 1.033 |
| 0.022 | 3 | 7.039 | 9.062 | 2.023 | 3.007 | 3.0500 | 0.00513 | 8 | 11.027 | 7.058 | 1.025 | 1.009 |
| 0.023 | 3 ½ | 9.089 | 12.056 | 2.068 | 3.055 | 4.0000 | 0.00687 | 8 | 13.056 | 9.011 | 1.008 | 0.095 |
| 0.024 | 4 | 12.073 | 15.090 | 3.017 | 4.003 | 4.0500 | 0.00884 | 8 | 16.006 | 10.079 | 0.095 | 0.085 |
| 0.026 | 5 | 20.000 | 24.030 | 4.030 | 5.005 | 5.0563 | 0.01389 | 8 | 21.074 | 14.061 | 0.076 | 0.069 |
| 0.028 | 6 | 28.089 | 34.047 | 5.058 | 6.007 | 6.0625 | 0.02006 | 8 | 28.023 | 18.097 | 0.063 | 0.058 |
| 0.032 | 8 | 50.002 | 58.042 | 8.040 | 7.098 | 8.0625 | 0.03552 | 8 | 42.049 | 28.055 | 0.048 | 0.044 |
| 0.037 | 10 | 78.085 | 90.076 | 11.090 | 10.002 | 10.0750 | 0.05476 | 8 | 60.024 | 40.048 | 0.038 | 0.036 |
| 0.041 | 12 | 111.090 | 127.064 | 15.074 | 11.094 | 12.0750 | 0.07763 | 8 | 79.077 | 53.060 | 0.032 | 0.030 |
| 0.044 | 14 | 135.030 | 153.094 | 18.064 | 13.013 | 14.0000 | 0.09354 | 8 | 93.075 | 63.000 | 0.028 | 0.027 |
| 0.050 | 16 | 176.070 | 201.005 | 24.035 | 15.000 | 16.0000 | 1.02230 | 8 | 116.008 | 78.000 | 0.025 | 0.024 |
| 0.056 | 18 | 224.000 | 254.085 | 30.085 | 16.088 | 18.0000 | 1.05550 | 8 | 156.026 | 105.000 | 0.023 | 0.021 |
| 0.059 | 20 | 278.000 | 314.015 | 36.015 | 18.081 | 20.0000 | 1.09260 | 8 | 183.005 | 123.000 | 0.020 | 0.019 |
| 0.069 | 24 | 402.010 | 452.040 | 50.030 | 22.063 | 24.0000 | 2.07930 | 8 | 254.048 | 171.000 | 0.017 | 0.016 |
Applications of Inconel 718 Pipe
The applications of the Inconel 718 pipes are utilized in most severe industries that demand high strength, high temperature, and reliability and some of the typical applications are listed below.
- Aerospace Industry : Inconel 718 is typically employed in aircraft engines, exhaust apparatus, and objects because of its terrific fatigue capacity and its capability to endure intense heat and pressure.
- Processing industries : Used in gas turbines, in furnace piping, and in heat treatment equipment since Inconel 718 does not lose mechanical strength at high temperatures and does not oxidize.
- Oil & Gas Industry : Many companies use this material to make high-pressure piping, wellhead systems, and in offshore structures, where resistance and corrosion are very important for their long life.
- Power Generation Plants : They are generally applied in the nuclear and thermal power plants in steam lines, heat exchangers, and the parts of turbines that can work in high temperature and pressure.
- Chemical and Petrochemical Plants : In terms of aggressive chemicals and process fluids that have limited material degradation, long service life, and operational safety is guaranteed.
- Maritime and Offshore : This was used in many marine companies as subsea systems, offshore structures, because of high seawater corrosion resistance and hostile environments.
Why Buy Inconel 718 Pipe from Steel Pipe & Tubes?
These are some of the reasons that you should purchase Inconel 718 pipe at Steel Pipes & Tubes.
- Certified Quality: ASTM B670 and ASME SB 670 findings are in compliance with complete inspection reports.
- Knowledge of the Industry: 12 years of knowledge in nickel alloy and high-performance piping solutions.
- Extensive Product line: Welded and seamless Inconel 718 pipes of various sizes and schedules.
- International Supply: Quality supplier of Middle East, Europe, Asia, etc.
- Quick Delivery: Good inventory and logistics: Good on-time supply.
- Customer Support: Technical support, competitive prices, and customer care.
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Frequently Asked Questions on Inconel 718 Pipe
The Inconel 718 pipe is commonly used in different industries such as aerospace, oil & gas, power generation, and high-temperature applications.
Yes, we provide high-quality and corrosion-resistant Inconel 718 seamless pipes.
Yes, we are the most trusted supplier and exporter of Inconel 718 pipes.
The pipes are used for fluid transport, while tubes are used for structural and precision applications.
We provide all the necessary documentation with our every product such as mill test certificates, quality reports, and inspection documents.
The price of the Inconel 718 pipes depends on many factors, such as size, thickness, length, quantity, and required standards.
Yes, Alloy 718 tubes can be supplied together with pipes.