Inconel 718 Pipe
Inconel 718 UNS N07718 Seamless Pipe and Tube Manufacturer and Supplier Providing High Strength Nickel Alloy 718 Products for Critical Applications
Inconel 718 ASTM B670 UNS N07718 Pipe and Tube Product Range
Inconel Alloy 718 welded pipe
ASTM B163 Alloy 718 seamless tube
Inconel 718 welded tube supplier
Inconel 718 UNS N07718 pipe
Inconel 718 Tube
Inconel 718 seamless pipe ASTM B670
Inconel 718 ASTM B670 UNS N07718 Seamless and Welded Pipes
Tested for Tensile Strength, Yield Properties, Oxidation Stability and Long-Term Thermal Performance
The Inconel 718 ASTM B670 UNS N07718 welded and seamless pipes are designed to provide dependable mechanical service in conditions where high temperatures, high pressure and corrosive media are the order of the day. A distinctive tensile strength, yield and creep strength, seamless pipes of Alloy 718 as well as welded pipes of Alloy 718 ensure structural integrity in alloy service applications over extended periods of high heat, which is why they are a good choice in situations that demand high-quality service.
UNS N07718 Inconel pipes are manufactured to high metallurgical standards, such as ASTM B637, ASTM B516, and AMS 5589, and have exceptional resistance to oxidation, pitting, chloride-induced cracking and thermal fatigue. Their nickel-chromium-molybdenum alloy gives them a high weldability and therefore these pipes could be used with a wide range of stress levels without affecting the durability.
Aerospace, petrochemical, marine engineering, power generation and oil and gas industries are some of the industries that are dependent on Inconel 718 ASTM B670 pipes because they have the capability of enduring high mechanical loads and chemical degradation. Turbine parts, exhaust systems, underwater equipment, heat exchangers, high-pressure manifolds, steam lines and reactor vessels are some of the areas that cannot afford to have material failures.
The exact dimensional precision of Alloy 718 UNS N07718 seamless pipes enables the high flow steadiness and the welded pipes made of 718 provide reliable performance in the assemblies with complicated fabrication. All pipes will be tested under tensile, hardness, elongation and microstructural uniformity to conform to the industry standards and provide extended life.
Having good thermal stability, high fatigue endurance and corrosion resistance, Inconel 718 UNS N07718 seamless and welded pipes still continue to be one of the most reliable available in extreme operating conditions of industries.
Inconel 718 ASTM and International Standards
| Parameter | Details |
| ASTM Specification | AMS 5590, AMS 5589 |
| International Specification | WERKSTOFF Nr 2.4668 , UNS N07718 |
| Standard | GB, DTD, ASME, AISI, ASTM, TOCT, JIS, NF, SAE, DIN, AMS, DS, EN |
| Size of Seamless Pipe | Wall thickness.: 0.05- 20 milimeter, 4 – 219 milimeter |
| Size of Welded Pipe | 5.0 to 1219.02 milimeter |
| size of EFW Pipe | 5.0 to 1219.02 milimeter |
| Seamless Tube Size | 3.35 milimeter To 101.6 milimeter OD |
| Welded Tube Size | 6.35 milimeter To 152 milimeter OD |
| Bwg & Swg | 18 Swg., 14 20 Swg., Swg. Swg., 12 16 Swg., 10 Swg. |
| Tubing wall thickness | 0.020″ –0.220″, (custom wall thicknesses available) |
| Pipe Schedule | SCH20, XS, STD, XXS, SCH60, SCH140, SCH80, SCH80, SCH5, SCH40S, SCH40, SCH120, SCH10S, SCH10, SCH30, SCH160 |
| Length | Standard & Cut length , Single Random, Double Random Pipe |
| Finish | AP (Annealed & Pickled), BA (Bright & Annealed), NO.1, 2B, Polished, MF, HL, NO.4, Mirror finish, BA, 8K etc |
| End | Plain End, Beveled End, Treaded Pipe, Screwed ends |
| Form | Hydraulic, Rectangular, Coiled, Square, Hollow, Round, Straight Pipes/tubes, “U” Shape, Pan Cake Coils, Boiler, LSAWetc. |
| Application | Dairy Pipe, Oil Pipe/tube, Gas Pipe/tube, Fluid Pipe/tube, Boiler Tube, Heat exchanger Tube |
| Type | Seamless /ERW/ EFW / Welded / Fabricated /CDW /DOM/CEW Inconel 718 Pipe |
| Marking | Heat No. (Or as per need.), Thickness, OD, Grade, Standard Length |
| Value Added Service | Expansion and Draw as per needed Length and Size, , Polish (Comilimeterercial and Electro), Machining, Annealed & Pickled Bending Etc. |
| Specialize in | Large Diameter Inconel 718 Pipe Nickel NW 2200 Capillary Tube & Other Odd Size ASME SB163 Alloy 718 Heat Exchanger & Condenser Tube |
| Suppliers of | Sanyo Special Steel, Japan Sumitomo Metals, Japan Kobe Special Tube, Japan Seah Steel Corporation, Korea Schoeller Bleckmann, Austria Tubacex Tubos Inoxidables S.A., Spain Nippon Steel Corporation, Japan |
| Test Certificate | Under Third Party Inspection Manufacturer Test Certificate |
| Manufacturing Technique | Cold drawn, hot drawn, bright annealed, solid solution, hot extruding |
| Our stockyard | New Delhi, Pimpri-Chinchwad, Abu Dhabi, Howrah, Ankara, Ludhiana, Mumbai, Hyderabad, Montreal, Mexico, Rajkot, Vadodara, Kolkata, Bogota, Ahvaz, Sydney, Lagos, Chennai, Bengaluru, Santiago, Damilimeteram, Karachi, Manama, Nagpur, Kanpur, Gurgaon, Indore, Surat, Riyadh, Ranchi, Jamshedpur, Thiruvananthapuram, Gujarat, London, Calgary, Melbourne, Tau, Bangalore, Ernakulam, Kuwait, Caracas, Janeiro, Tehran, Ahmedabad, Perth, Istanbul, Baroda, Khobar, Courbevoie, Muscat, India, Coimbatore, Noida, Port-of-Spain, Gimhae-si, |
Different Types of Inconel 718 Pipe
Inconel 718 Seamless Pipe
Inconel 718 Welded Pipe
Inconel 718 Exhaust Pipe
Inconel 718 Pipe Material
Inconel 718 Weld Pipe
Inconel 718 Lined Pipe
Inconel 718 Square Pipe
Inconel 718 Clad Pipe
Inconel 718 Flex Pipe
Inconel 718 Rectangle Pipe
Inconel 718 Square Pipe (Radius Corners)
Inconel 718 Hollow Pipe
Available Types of Inconel 718 Seamless and Welded Pipe
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Chemical Composition of Inconel 718 Alloy Tube
| 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 |
Mechanical Strength and Temperature Properties of Inconel 718
| 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 % |
Global Equivalent Grades for Inconel 718 Pipes and Tubes
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | GOST | AFNOR | EN |
| Inconel 718 | 2.4668 | N07718 | NCF 718 | – | – | – | – |
Alloy 718 Physical Properties
| 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
| 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
| 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 |
Available Dimensions for Alloy 718 Square Tube Profiles
| DIMENSIONS | WEIGHT PER | WALL | DIMENSIONS | WEIGHT PER | WALL |
| (MM) | METRE (KG) | (MM) | (MM) | METRE (KG) | (MM) |
| 12.07 x 12.07 | 0.044 | 1.020 | 40 x40 | 1.049 | 1.020 |
| 12.07 x 12.07 | 0.055 | 1.050 | 40 x40 | 1.085 | 1.050 |
| 15 x 15 | 0.053 | 1.020 | 40 x40 | 2.045 | 2.000 |
| 15 x 15 | 0.065 | 1.050 | 40 x40 | 3.075 | 3.000 |
| 20 x 20 | 0.071 | 1.020 | 50 x50 | 2.032 | 1.050 |
| 20 x 20 | 0.088 | 1.050 | 50 x50 | 3.008 | 2.000 |
| 20 x 20 | 1.019 | 2.000 | 50 x50 | 4.065 | 3.000 |
| 25 x 25 | 0.092 | 1.020 | 60 x60 | 3.071 | 2.000 |
| 25 x 25 | 1.014 | 1.050 | 60 x60 | 5.049 | 3.000 |
| 25 x 25 | 1.049 | 2.000 | 70 x70 | 6.053 | 3.000 |
| 25 x 25 | 2.020 | 3.000 | 80 x80 | 4.098 | 2.000 |
| 30 x 30 | 1.010 | 1.020 | 80 x80 | 7.053 | 3.000 |
| 30 x 30 | 1.037 | 1.050 | 100 x 100 | 6.040 | 2.000 |
| 30 x 30 | 1.084 | 2.000 | 100 x 100 | 9.053 | 3.000 |
| 30 x 30 | 2.072 | 3.000 |
ASME B36.10M Pipe Schedule Specifications for Alloy 718
| DIMENSIONS | WEIGHT PER | WALL | DIMENSIONS | WEIGHT PER | WALL |
| (MM) | METRE (KG) | (MM) | (MM) | METRE (KG) | (MM) |
| 12.07 x 12.07 | 0.044 | 1.020 | 40 x40 | 1.049 | 1.020 |
| 12.07 x 12.07 | 0.055 | 1.050 | 40 x40 | 1.085 | 1.050 |
| 15 x 15 | 0.053 | 1.020 | 40 x40 | 2.045 | 2.000 |
| 15 x 15 | 0.065 | 1.050 | 40 x40 | 3.075 | 3.000 |
| 20 x 20 | 0.071 | 1.020 | 50 x50 | 2.032 | 1.050 |
| 20 x 20 | 0.088 | 1.050 | 50 x50 | 3.008 | 2.000 |
| 20 x 20 | 1.019 | 2.000 | 50 x50 | 4.065 | 3.000 |
| 25 x 25 | 0.092 | 1.020 | 60 x60 | 3.071 | 2.000 |
| 25 x 25 | 1.014 | 1.050 | 60 x60 | 5.049 | 3.000 |
| 25 x 25 | 1.049 | 2.000 | 70 x70 | 6.053 | 3.000 |
| 25 x 25 | 2.020 | 3.000 | 80 x80 | 4.098 | 2.000 |
| 30 x 30 | 1.010 | 1.020 | 80 x80 | 7.053 | 3.000 |
| 30 x 30 | 1.037 | 1.050 | 100 x 100 | 6.040 | 2.000 |
| 30 x 30 | 1.084 | 2.000 | 100 x 100 | 9.053 | 3.000 |
| 30 x 30 | 2.072 | 3.000 |
Advantages of Inconel 718 Seamless and Welded Pipe
Inconel 718 welded and seamless pipes provide an exclusive blend of high temperature strength, resistance to corrosion together with excellent metallurgical stability. Nickel-chromium-molybdenum alloy has very good pitting, crevice, stress, and corrosion cracking as well as oxidation resistance even under extreme thermal conditions. Alloy 718 UNS N07718 has tensile and yield strength that remains high at high temperatures, hence is applicable in heavy-duty, long term, performance.
These pipes are the ones that offer better weldability and thus complex fabrication can be done without structural integrity being compromised. They are low magnetic permeability to ensure aerospace and electronics systems behave in a stable manner. Alloy 718 is also characterized by high creep resistance, fatigue strength, and impact toughness, which guarantees the long life of the alloy in tough environments as well. Having such a high level of dimensional tolerance, pressure management, and being able to work both with high temperature and low-temperature environment, Inconel 718 ASTM B637 pipes are among the surest material choices, which could be introduced in modern engineering projects.
Applications of Inconel 718 Seamless and Welded Pipe
Inconel 718 Seamless and welded pipes are commonly used in industries that require high standards of mechanical strength and resistance to corrosion as well as reliable working performance at a high temperature. The Alloy 718 UNS N07718 has a nickel-chromium-molybdenum alloy structure that allows it to provide long-term stability in the presence of pressure and thus applicable in mission-critical equipment when failure of material is not a possibility. Inconel 718 ASTM B670 pipes are used in high-temperature aerospace applications, but also in chemical processing plants where the media may be aggressive, pitting, oxidation and thermal fatigue resistant.
Key Applications
- Jet engines, exhausts, combustors, aerospace gas turbines.
- Downhole tools, oil and gas wellhead system, subsea equipment.
- Petrochemical heat exchangers, reactors, high pressure processing.
- Steam lines of power generation, superheater tubes, components of the boiler.
- The hardware used in nuclear industries is exposed to heat and radiation.
- Chloride rich or corrosive seawater engineering piping.
- Pumps used to carry out chemical processing, evaporators, condensers, and pressure vessels.
- Cryogenic service lines which demand low temperature performance.
- High pressure manifolds, valves, and industrial furnace parts.
Why Choose Stellar Alloys for Inconel 718 Seamless and Welded Pipe
Stellar Alloys is a reputable supplier of seamless and welded pipes with Inconel 718, certified materials in accordance with the global standards of ASTM B670, ASTM B637, AMS and UNS N07718. Having a high attention to quality control, the pipes are strictly tested in terms of their chemical composition, mechanical strength, hardness, and dimensional accuracy. This will guarantee that customers are supplied with materials that can be used in high pressure, high temperature and those materials that are prone to corrosion.
Stellar Alloys has a high inventory of seamless, welded, ERW, LSAW and custom-fabricated Alloy 718 pipes in its ready-stock to cater to the urgent project requirements. The company offers certification of MTC 3.1, third party inspection, competitive prices, and rapid delivery of products within India and other locations worldwide. Their technical support team helps engineers and procurement departments in the selection of materials, size suggestions and documentation. Stellar Alloys is a reliable company to rely on when it comes to all Inconel 718 pipe and tube needs given its steady reliability of its products and customer services.
Frequently Asked Questions About Inconel 718 Pipe
Inconel 718 Seamless pipe is used at very high temperature and pressure, e.g. gas turbines, jet engines, offshore equipment, heat exchangers, and petrochemical processing units. Its ability to perform in a critical service environment is due to its superior strength and ability to resist corrosion.
Seamless pipes have a better pressure handling and dimensional control, whereas welded pipes are chosen when it is in large diameter and cost efficient fabrication. They are both operated depending on the temperature of operation, pressure needs, and project specifications.
Yes, Alloy 718 UNS N07718 has a great oxidation, pitting, crevice, as well as chloride stress cracking resistance. It has a high temperature mechanical strength, thus it can be used in aerospace, marine and chemical processing.
The Inconel 718 pipes are produced to the international standard like the ASTM b670, ASTM b637, ASTM B516, AMS 5589, AMS 5590 and UNS N07718. These standards guarantee adequate chemical composition, mechanical properties and dimensional tolerances.
The inconel 718 pipes come in a very large variety of diameter, wall thickness and length based on the needs of the project. Seamless, welded pipes of various sizes can also be provided, depending on the needs of the application.
Alloy 718 pipes are chosen because they are high tensile strength, fatigue strength, easily welded and also the pipes perform well even in extreme conditions of thermal cycling. Their characteristics render them suitable in aerospace applications, reactor and power plants, as well as offshore devices.
Yes. Even under very low temperatures Inconel 718 is structurally stable and tough and is therefore used in cryogenic processing, LNG systems and low temperature liquid handling lines.
