Inconel 718 Round Bars & Rods: Manufacturer, Supplier & Exporter
USA Piping Solution is a distinguished manufacturer, supplier and exporter of premium Inconel 718 Round Bars. Our products also known as 718 Round Bar or Inconel 718 Bar are designed to deliver superior performance in the most severe environments. Inconel 718 is a precipitation-hardenable nickel-chromium alloy popular for its notable tensile, yield and stress-rupture characteristics at temperatures up to 1300°F (704°C). The material's remarkable corrosion resistance and weldability make it an perfect choice for a wide range of difficult industrial operations. We provide a complete range of Inconel 718 rod in various sizes and finishes, all fully certified to meet international quality standards.
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What is Inconel 718?
Inconel 718 is a high-strength, corrosion-resistant nickel-chromium superalloy that is known for its ability to retain exceptionally-high structural integrity across an exceptionally large temperature range (-423 °F to 1300 °F; -253 °C to 704 °C). Operating in both extremes is a distinguishing characteristic of Inconel 718 compared to most alloys. Inconel 718 is composed unique to other nickel-chromium superalloys in that it contains substantial amounts of niobium and molybdenum, which means it not only has outstanding resistance to chloride-ion stress-corrosion cracking and pitting, but it also has excellent creep-rupture strength as well. The strengthening mechanism of Inconel 718 is a slow precipitation-hardening process, but this mechanism allows for high levels of weldability with negligible risk of spontaneous-cracking that can occur if rapidly cooled. The Inconel 718 round bar can ultimately be applied to a broad range of high-performance machinery with reliability.
Inconel 718 Round Bars Specifications
Our Alloy 718 Round Bar products are manufactured and rigorously tested to ensure they meet or exceed the highest industry standards.
| Specification | Value |
|---|---|
| Standard | ASTM B637, UNS N07718, AMS 5662, AMS 5663, AMS 5832, Werkstoff No. 2.4668 |
| Size | 3 mm to 800 mm |
| Form | Round Bar, Rod, Wire, Flat Bar |
| Length | 100mm to 3000mm & above |
| Finish | Hot Rolled, Cold Drawn, Bright, Polished, Black |
Chemical Composition of Inconel 718 Round Bars
These equivalent grades apply to our full range of Alloy 600 Pipe and Alloy 600 Tube products.
| Element | Content (%) |
|---|---|
| Nickel (Ni) | 50.0 - 55.0 |
| Chromium (Cr) | 17.0 - 21.0 |
| Iron (Fe) | Balance |
| Niobium (Nb) | 4.75 - 5.50 |
| Molybdenum (Mo) | 2.80 - 3.30 |
| Titanium (Ti) | 0.65 - 1.15 |
Mechanical Properties of Inconel 718 Round Bars
| Property | Value |
|---|---|
| Tensile Strength | 135 ksi (930 MPa) min |
| Yield Strength | 75 ksi (517 MPa) min |
| Elongation | 30% min |
| Hardness | 35 HRC max |
Equivalent of Inconel 718 Round Bars
Inconel 718 is a globally recognized superalloy, and its equivalent grades are used to ensure material consistency and interchangeability across different standards and regions. The most common equivalent grades and specifications for our Inconel 718 Round Bars include:
| UNS | Werkstoff No. | ISO | AMS | DIN |
|---|---|---|---|---|
| N07718 | 2.4668 | 6208 | 5662, 5663, 5832 | 17744 |
Inconel 718 Round Bars Size Chart
We provide Inconel 718 round bars in a comprehensive range of sizes, catering to both domestic and international standards.
| ASTM/Canadian | Metric | Japanese | US Bar | ||||
|---|---|---|---|---|---|---|---|
| Diam. (mm) | Bar Size | Diam. (mm) | Bar Size | Diam. (mm) | Bar Size | Diam. (mm) | Bar Size |
| 300 | 20M | 13 | 13 | 0.500 | #4 | ||
| 200 | 15M | 10 | 10 | 0.375 | #3 | ||
| 700 | 30M | 19 | 19 | 0.750 | #6 | ||
| 1000 | 35M | 22 | 22 | 0.875 | #7 | ||
| 500 | 25M | 16 | 16 | 0.625 | #5 | ||
| 2500 | 55M | 29 | 29 | 1.125 | #9 | ||
| 100 | 10M | 6 | 6 | 0.250 | #2 | ||
| 1500 | 45M | 25 | 25 | 1.000 | #8 | ||
| -- | -- | 35 | 35 | 1.375 | #11 | ||
| -- | -- | - | - | - | - | ||
| -- | -- | 32 | 32 | 1.250 | #10 | ||
| -- | -- | 44 | 44 | 1.750 | #14 | ||
| -- | -- | 48 | 48 | 1.875 | #15 | ||
| -- | -- | 38 | 38 | 1.500 | #12 | ||
| -- | -- | 41 | 41 | 1.625 | #13 | ||
| -- | -- | 57 | 57 | 2.250 | #18 | ||
Inconel Alloy 718 Round Bar Tolerances
Our manufacturing process ensures strict adherence to dimensional tolerances to provide a perfect fit for your application.
| Alloy(s) | Condition | Diameter Tolerance | Spec. Diameter (in.) |
|---|---|---|---|
| 718 | Hot Rolled | +0.125″, -0.063″ | Over 4 |
| 718 | Hot Rolled | +0.031″, -0.016″ | Over 1 to 2, incl. |
| 718 | Hot Rolled | +/- 0.016″ | Up to 1, incl. |
| 718 | Hot Rolled | +0.047″, -0.031″ | Over 2 to 4, incl. |
ISO Tolerance of UNS N07718 Bar
Our UNS N07718 bars are produced with strict ISO tolerances for guaranteed precision.
| Type | Sizes (Inches) | Sizes (mm) | ISO Tolerance |
|---|---|---|---|
| Peeled and Polished | 1.50″ to 6.00″ | 40.00 to 150.00 | h11 - DIN 1013 |
| Cold Drawn and Ground | 5/6″ to 2.50″ | 10.00 to 75.00 | h9 - h8 - h11 - h10 |
| Cold Drawn and Polish | 1/8″ to 3.00″ | 3.00 to 75.00 | h9 - h8 - h11 - h10 |
| Peeled and Ground | 3/4″ to 2.00″ | 20.00 to 50.00 | h10 - h9 - h11 |
Inconel 718 Round Bar Manufacturing Process
The manufacturing of Inconel 718 bars typically involves:
- Melting: Using processes like Vacuum Induction Melting (VIM) followed by Electroslag Remelting (ESR) or Vacuum Arc Remelting (VAR) to ensure high purity and a refined grain structure.
- Forging & Rolling: The resulting ingot is hot-worked by forging or hot rolling into bar stock.
- Heat Treatment: The bars undergo a two-stage heat treatment:.
- Solution Annealing: Heating to a high temperature (around 955-1010°C or 1750-1850°F) to dissolve strengthening phases.
- Precipitation Hardening (Aging): A two-step aging process (e.g., 720°C/1325°F for 8 hours, followed by 620°C/1150°F for 8 hours) to precipitate the γ' and γ'' phases that give the alloy its exceptional strength.
- Finishing: The bars are then finished to the required size, tolerance, and surface condition through processes like peeling, grinding, cold drawing, or polishing.
Forms of Inconel 718 Bar in Stock
We stock a wide variety of Inconel 718 bar to meet our customer's exact needs including:
- Inconel 718 Hex Bar
- Alloy 718 Flat Bar
- Nicrofer 5219 Square Bar
- DIN 2.4668 Rectangle Bar
- Nickel 718 Bright Bar
- Inconel 2.4668 Polished Bar
- Werkstoff 2.4668 Cold Drawn Bar
- UNS N07718 Forged Bar
Applications of Inconel 718 Round Bars
The unique balancing combination of corrosion resistance and very high strength with temperature, makes Inconel 718 Round Bars essential in several critical missions and industries.
- Aerospace: Numerous jet engine components, rocket motor parts, and thrust reversers are also in the aerospace materials industry suffer these extreme thermal and mechanical stresses.
- Power Generation: Inconel 718 Round Bars are useful not only for gas turbine parts, but for nuclear reactor core parts, where high heat and pressure are also expected.
- Oil & Gas: Inconel is an excellent choice for down hole parts, wells head components, and valves that may encounter high pressure and corrosive fluids.
- Cryogenic: Inconel 718 Round Bars are used in cryogenic storage tanks as well as rocket engine hardware due to its high strength and excellent ductility at low temperatures.
Why Choose USA Piping Solution for Your Inconel 718 Round Bars?
When sourcing high-performance alloys, quality and reliability are paramount. At USA Piping Solution, our commitment to excellence ensures every Inconel 718 Bar Stock meets strict quality controls. We provide complete Mill Test Certificates (MTC) and can arrange third-party inspections to guarantee full traceability and compliance. Our competitive Inconel 718 Round Bar price and global logistics network ensure a seamless and efficient supply chain for projects of any scale.
Related Products
- Inconel 718 Pipes & Tubes
- Inconel 718 Flanges
- Inconel 625 Round Bars
- Hastelloy C276 Round Bars
- Monel K500 Round Bars
- Nickel 200/201 Round Bars
- Alloy 20 Round Bars
Get a Quote for Your Inconel 718 Round Bars
For a competitive quote on Inconel 718 Round Bars or for more information on our complete product range, contact our sales team today. We provide quick and tailored solutions to meet your project's precise requirements.
Request a QuoteFrequently Asked Questions
What is the main advantage of Inconel 718 over standard stainless steel?
The primary advantage of Inconel 718 is its ability to maintain extremely high strength and corrosion resistance at temperatures up to 1300°F (704°C), where standard stainless steels would lose their structural integrity. It is also highly resistant to stress-corrosion cracking and creep.
Is Inconel 718 difficult to machine?
Yes, due to its high strength and work-hardening properties, Inconel 718 is considered a challenging material to machine. It requires specialized tools, slow speeds, and high rigidity to achieve the desired results.
What forms of Inconel 718 are available?
Inconel 718 is available in many forms, including round bars, rods, plates, sheets, forgings, and pipes. The round bar is a common form used for forging or machining into high-strength components.
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