Inconel 718 Alloy Pipe
Inconel 718 Alloy Pipe Property Advantages
Inconel 718 alloy tubing offers high strength, resistance to creep, fatigue, and corrosion, maintaining its performance in environments ranging from sub-zero to high temperatures (approximately 650°C). It exhibits good weldability, resistance to post-weld cracking, high mechanical stability, and is non-magnetic and spark-resistant in its standard state. Its ability to maintain integrity in demanding, high-stress environments makes it an ideal choice for industries such as aerospace, oil and gas, and power generation.
What are the advantages of Inconel 718?
Inconel 718 is a high-strength, corrosion-resistant nickel-based superalloy. It offers excellent mechanical properties, high-temperature strength, and resistance to oxidation and corrosion. Inconel 718 is widely used in various industries, including aerospace, oil and gas, automotive, and power generation.
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 |
Alloy718 seamless Pipe
Size:15" to 150″NB Inch
Wall Thikness: 0.5 to 20mm
Chemical Resistance Guide of 718 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 |
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 |
Alloy 718 Seamless Tubing Wall Thickness
| Types of inconel 718 Tube | Out diameter (OD) | Wall thickness | Length |
|---|---|---|---|
| NB Sizes (in stock) | 1/8" ~ 8" | SCH 5 / SCH 10 / SCH 40 / SCH 80 / SCH 160 | Upto 6 Meters |
| inconel 718 Seamless Tube (Custom Sizes) | 5.0mm ~ 203.2mm | As per requirement | Upto 6 Meters |
| inconel 718 Welded Tube (in Stock + Custom Sizes) | 5.0mm ~ 1219.2mm | 1.0 ~ 15.0 mm | Upto 6 Meters |
Alloy 718 Tubing Pressure Rating
| Tube O.D. (in.) |
Wall Thickness of Tube (inches) | |||||||
|---|---|---|---|---|---|---|---|---|
| .028 | .035 | .049 | .065 | .083 | .095 | .109 | .120 | |
| Working Pressure (psig) | ||||||||
| 1/8 | 7900 | 10100 | ||||||
| 1/4 | 3700 | 4800 | 7000 | 9500 | ||||
| 5/16 | 3700 | 5400 | 7300 | |||||
| 3/8 | 3100 | 4400 | 6100 | |||||
| 1/2 | 2300 | 3200 | 4400 | |||||
| 3/4 | 2200 | 3000 | 4000 | 4600 | ||||
| 1 | 2200 | 2900 | 3400 | 3900 | 4300 | |||
Alloy 718 Tube 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 |
Advantages of Inconel 718 Pipe
Inconel 718 pipe exhibits strong creep rupture properties, extremely high yield strength, and high tensile strength. Nickel is the primary component of Inconel 718 pipe. These pipes are suitable for applications requiring extremely high yield strength, tensile strength, and strong creep rupture properties.
Inconel 718 pipe offers excellent resistance to chloride, high temperatures, and sulfide stress corrosion cracking. Pipes made from Inconel 718 do not corrode in water and do not crack even when attacked by chloride ions.
Due to its delayed response characteristics, the alloy can be aged during annealing without cracking. In addition to its excellent weldability, the material effectively resists post-weld cracking.
In addition to increasing the alloy's stiffness, molybdenum provides high strength without the need for heat treatment. The addition of aluminum and titanium to nickel-chromium alloys improves the alloy's toughness.
Inconel 718 Pipe Specifications
Inconel 718 pipe conforms to various standards, such as ASTM B163/ASME SB163 and ASTM B516/ASME SB516.
The outer diameter of seamless pipe ranges from 3.35 mm to 101.6 mm, while the outer diameter of welded pipe ranges from 6.35 mm to 152 mm.
These pipes are available in various types, including polished, annealed and pickled, bright annealed, and medium frequency annealed.
The pipe alloy types include seamless, EFW, EFW, welded, and fabricated pipes, and are available in a variety of forms, including U-bends, hollow tubes, hydraulic, LSAW, boiler tubes, straight tubes, coils, round, rectangular, and square shapes.
Gnee Steel specializes in the production and sale of various nickel-based alloys, including Nickel 201, Nickel 202, Hastelloy C-276, Hastelloy C-22, Hastelloy B, Hastelloy C-4, Inconel Alloy 600, Inconel 625, Inconel 718, Inconel X-750, Incoloy Alloy 800, Incoloy 800H/HT, Incoloy 825, Monel Alloy 400, Monel K500, and high-temperature alloys. Gnee Steel's products are widely used in aerospace, chemical, electric power, automotive, and nuclear energy applications, and we can provide customized alloy solutions tailored to customer needs. For alloy pricing inquiries or customized alloy solutions, please contact us for a quote at ss@gneemetal.com.
