ASTM B637 Nickel Alloy 718 Forged Bar
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ASTM B637 Nickel Alloy 718 Forged Bar information
ASTM B637 specifies precipitation-hardenable nickel alloy 718 for medium-to-high temperature applications, including forged bar. This nickel-chromium-iron alloy offers exceptional high-strength properties from cryogenic to elevated temperatures (up to 650°C / 1200°F). Its strength is achieved through controlled precipitation age-hardening of niobium, titanium, and aluminum. Its primary applications are in aerospace (engine components) and the oil industry, where it is favored for its strength, creep-rupture resistance, and good corrosion resistance.

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What are the properties of 718 nickel alloy?
718 alloy is a precipitation-hardenable nickel-based alloy with extremely high yield strength, tensile strength, and creep-rupture properties at temperatures up to 700°C. 718 alloy exhibits a slow age-hardening reaction, meaning it does not spontaneously harden during heating and cooling, making it suitable for annealing and welding.

Inconel 718 alloy forged bar is renowned for its exceptional performance, making it a crucial choice for industries where strength and corrosion resistance are paramount. Often used alongside Inconel 600 and 601 forged bar, 718 Inconel alloy forged bar showcases the broad performance capabilities of the Inconel alloy family. Whether Inconel 718 flat bar or 718 round bar, these forged bars represent the pinnacle of materials engineering, providing a rugged and reliable solution for industries that demand superior performance under challenging and extreme conditions.
Inconel 718 forged bar is meticulously crafted using a precision forging process that shapes the material under high pressure and high temperature. This process enhances the inherent strength and durability of 718 Inconel forged bar, making it suitable for critical applications in aerospace, gas turbine engines, and other industries that demand superior performance under extreme conditions. 718 Inconel forged bar offers exceptional tensile, fatigue, and creep-rupture strength, making it an essential material for high-temperature and corrosive environments.
718 Inconel alloy forged bar sizes typically range from 10 mm to 500 mm in diameter and exceed 6 meters in length. UNS N07718 forged bar not only offers exceptional properties but can also be customized to meet specific requirements, including dimensions, tolerances, and additional processing such as heat treatment.
Nickel Alloy 718 Forged Bar Specification
Inconel 718 Forged Bars Specification
Specification : ASTM B637 / ASME SB637
Standard : EN, DIN, JIS, ASTM, BS, ASME, AISI
Size : 1000 MM TO 7000 MM
Outer Diameter : 100MM TO 400 mm Max OD
Weight : 1000 to 6000 Kg
Finish : Black, Bright Polished, Rough Turned, NO.4 Finish, Matt Finish, BA Finish
Tolerance : 0/+2-3mm
Equivalent Grades of Inconel 718 Forged Square Bars
| STANDARD | WERKSTOFF NR. | UNS |
| Inconel 718 | 2.4668 | N07718 |
ASTM B637 Nickel 718 Bar Stock

Inconel 718 Forged Black Bar
UNS N07718 Forged Black Bar
Alloy 718 Forged Black Bar
Inconel 718 Forged Black Bar
Inconel 718 Black Forged Bar
2.4668 Forged Black Bars
Inconel® Alloy 718 Forged Black Bars
718 Inconel Alloy Black Forged Rods
ASTM B637 Alloy 718 Forged Black Bars
ASME SB637 Inconel 718 Forging Black Bar
Nickel Alloy 718 Forged Black Bars

Inconel 718 Forged Square Bar
2.4668 Forged Square Bars
ASTM B637 Inconel Alloy 718 Forged Square Bars
Alloy 718 Square Forged Bar
Alloy 718 Forged Square Bars
718 Forged Square Bars
UNS N07718 Forged Square Bar
718 Inconel Forged Square Bar
ASME SB637 Inconel 718 Forging Square Bar
Inconel Alloy 718 Square Forged Rods
Inconel 718 Forged Square Bar

Inconel 718 Forged Hex Bar
ASTM B637 Inconel Alloy 718 Forged Hex Bars
Alloy 718 Forged Steel Hex Bars
ASME SB637 Inconel 718 Forged Hex Bar
718 Inconel Alloy Hexagonal Forging Rods
Nickel Alloy 718 Forged Hex Bar
Alloy 718 Hexagonal Forged Bar
UNS N07718 Forged Hexagonal Bar
Inconel® Alloy 718 Forged Hexagonal Bars
2.4668 Forged Hex Bars
718 Inconel Forged Hex Bar
ASME SB637 Inconel 718 Forged Rod Sizes
| Size & Dimensions of inconel 718 round bar | |||||||
|---|---|---|---|---|---|---|---|
| Metric | US Bar | ASTM/ Canadian | Japanese | ||||
| Bar Size | Diam. (mm) | Bar Size | Diam. (Inch) | Bar Size | Diam. (mm2) | Bar Size | Diam. (mm) |
| 5 | 5 | #2 | 0.250 | 10M | 100 | 6 | 6 |
| 5.5 | 5.5 | #3 | 0.375 | 15M | 200 | 10 | 10 |
| 6 | 6 | #4 | 0.500 | 20M | 300 | 13 | 13 |
| 7 | 7 | #5 | 0.600 | 25M | 500 | 16 | 16 |
| 8 | 8 | #6 | 0.750 | 30M | 700 | 19 | 19 |
| 9 | 9 | #7 | 0.875 | 35M | 1000 | 22 | 22 |
| 10 | 10 | #8 | 1.000 | 45M | 1500 | 25 | 25 |
| 11 | 11 | #9 | 1.125 | 55M | 2500 | 29 | 29 |
| 12 | 12 | #10 | 1.250 | 32 | 32 | ||
| 14 | 14 | #11 | 1.375 | 35 | 35 | ||
| 16 | 16 | #12 | 1.500 | 38 | 38 | ||
| 18 | 18 | #13 | 1.600 | 41 | 41 | ||
| 20 | 20 | #14 | 1.750 | 44 | 44 | ||
| 22 | 22 | #15 | 1.875 | 48 | 48 | ||
| 25 | 25 | #16 | 2.000 | 51 | 51 | ||
| 28 | 28 | #18 | 2.250 | 57 | 57 | ||
| 32 | 32 | ||||||
| 36 | 36 | ||||||
| 40 | 40 | ||||||
| 44 | 44 | ||||||
| 50 | 50 | ||||||
Inconel 718 Forged Round Bar Weight Chart
| Round Bar | ||||||||
|---|---|---|---|---|---|---|---|---|
| Size | Kgs / Foot | Kgs / Mtr | Size | Kgs / Foot | Kgs / Mtr | Size | Kgs / Foot | Kgs / Mtr |
| 3mm | 0.017 | 0.055 | 20mm | 0.753 | 2.470 | 3″ | 10.900 | 35.762 |
| 1/8″ | 0.019 | 0.062 | 22mm | 0.908 | 2.979 | 3-1/4″ | 12.800 | 41.996 |
| 5/32″ | 0.029 | 0.095 | 7/8″ | 0.926 | 3.038 | 3-1/2″ | 14.850 | 48.772 |
| 4mm | 0.030 | 0.098 | 24mm | 1.080 | 3.543 | 3-3/4″ | 17.001 | 55.780 |
| 3/16″ | 0.043 | 0.141 | 25mm | 1.180 | 3.871 | 4″ | 19.306 | 63.340 |
| 5mm | 0.047 | 0.154 | 1″ | 1.210 | 3.970 | 4-1/4″ | 21.908 | 72.249 |
| 7/32″ | 0.058 | 0.190 | 26mm | 1.271 | 4.170 | 4-1/2″ | 24.4487 | 80.340 |
| 6mm | 0.068 | 0.223 | 27mm | 1.368 | 4.490 | 4-3/4″ | 27.366 | 90.249 |
| 1/4″ | 0.076 | 0.249 | 1-1/8″ | 1.534 | 5.033 | 5″ | 30.461 | 99.940 |
| 7mm | 0.091 | 0.298 | 30mm | 1.691 | 5.548 | 5-1/2″ | 36.690 | 121.000 |
| 5/16″ | 0.118 | 0.387 | 1-1/4″ | 1.924 | 6.349 | 6″ | 43.860 | 143.900 |
| 8mm | 0.120 | 0.398 | 32mm | 1.894 | 6.314 | 6-1/2″ | 51.093 | 167.630 |
| 9mm | 0.152 | 0.498 | 1-3/8″ | 2.303 | 7.550 | 7″ | 59.432 | 196.000 |
| 3/8″ | 0.170 | 0.557 | 35mm | 2.390 | 7.553 | 7-1/2″ | 68.226 | 225.000 |
| 10mm | 0.189 | 0.620 | 36mm | 2.438 | 7.999 | 8″ | 77.586 | 254.55 |
| 11mm | 0.228 | 0.748 | 38mm | 2.792 | 8.903 | 10″ | 121.048 | 397.140 |
Inconel 718 Industrial Forged Rod Chemical Composition Chart
| Grade | Ni | Cr | Cu | C | Mn | S | Mo | Si | Co |
| Inconel 718 | 50 – 55 | 17 – 21 | 0.3 max | 0.08 max | 0.35 max | 0.015 max | 2.8 – 3.3 | 0.35 max | 1.0 max |
Inconel 718 Cold Rolled Forged Bar Mechanical Properties
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 8.2 g/cm3 | 1350 °C (2460 °F) | Psi – 135,000 , MPa – 930 | Psi – 70,000 , MPa – 482 | 45 % |
Different Types of Alloy 718 Forged Hex Bar
| Category | Product Name |
|---|---|
| General Product Names | Inconel 2.4668 Forged Bar Inconel Alloy 718 Industrial Forged Bars Alloy 718 Forged Bar Inconel UNS N07718 Forged Rods Nickel Alloy 718 Forged Bar |
| Shape-Specific Bars | Inconel 718 Forged Hexagonal Bar Inconel 2.4668 Forged Rectangular Bar Alloy 718 Forged Square Bar Inconel UNS N07718 Forged Hex Bar |
| Surface Finish | 718 Inconel Black Bar Inconel Alloy 718 Cold Rolled Forged Bar |
| Supply Chain Roles | Inconel Alloy 718 Forged Bars Manufacturer 718 Inconel Forged Bars Exporter Inconel 2.4668 Forged Bars Dealers Inconel Alloy 718 Forged Bar Supplier Nickel Alloy 718 Forged Bars Stockist |
| Standards & Certifications | ASTM B637 Inconel 718 Forged Black Bar ASME SB637 Inconel Alloy 718 Forged Bars |
ASTM B637 Uns N07718 Forged Rod Applications and Uses
Oil and Gas Pipeline
Chemical Industry
Power Plant
Pulp and paper industry
Energy industries
Dairy and food Processing

About Gnee Steel
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Gnee Steel is a supplier of Nickel Alloy 718 Forged Bar. Our product offerings include seamless pipe (sizes: 4-219 mm, thickness: 0.5-20 mm); welded pipe (sizes: 5.0-1219.2 mm, thickness: 0.5-20 mm); plate (sizes: 0.1-100 mm, width: 10-2500 mm); strip; alloy round bar (sizes: 3-800 mm, diameter); flat bar (sizes: 2-100 mm, thickness: 10-500 mm); hexagonal bar (sizes: 2-100 mm); wire rod; and extruded sections. We partner with steel mills to provide our customers with 625 alloy that meets or exceeds numerous leading industry standards, including ASTM, ASME, SAE, AMS, ISO, DIN, EN, and BS.
Gnee Steel stocks and sells Nickel Alloy 718 Forged Bar, Tube, Pipe, Plate, Strip, Plate, Round Bar, Flat Bar, Forged Billet, Hexagon, Wire and Extrusions. Feel free to contact us for a quote at ss@gneemetal.com






