Gnee Steel has a strong reputation in the supply and export of Inconel 718 plates, coils, and sheets. Our customers span across industries such as aerospace, oil and gas, chemical, and power generation. Many of Gnee Steel's products are affordably priced, ensuring that customers receive high-quality service and products at very reasonable prices. We are a certified manufacturer and consistently adhere to industry standards, ensuring the superior quality of our Inconel UNS N07718 plates.
Nickel Alloy 718 AMS 5596 and AMS 5597 Plate Information
Nickel Alloy 718 AMS 5596 and AMS 5597 Plate Information
Nickel alloy 718 (UNS NO7718) plates conform to AMS 5596 and AMS 5597 standards and are a precipitation-hardened nickel-chromium superalloy suitable for high-strength, corrosion-resistant applications up to 1300°F (705°C). They possess excellent weldability and fatigue strength, making them ideal materials for aerospace gas turbines, cryogenic equipment, and nuclear reactors.
What are the characteristics of Nickel Alloy 718?
Alloy 718 is a precipitation-hardening nickel-based alloy designed to exhibit extremely high yield strength, tensile strength, and creep rupture properties at temperatures up to 1300°F. The slow age-hardening response of Alloy 718 allows for annealing and welding during heating and cooling processes without spontaneous hardening.
Alloy 718 conforms to AMS 5596 and AMS 5597 standards and is a nickel-chromium alloy that achieves high strength and good corrosion resistance through heat treatment. It is easily machined into complex parts and exhibits excellent resistance to post-weld cracking. Alloy 718 can be effectively used in a temperature range of -423 to 1300 degrees Fahrenheit.
ASTM B670 Alloy 718 Plate
Specifications Of Inconel 718 Plates
| Standards | ASTM B670 / ASME SB670 |
| Dimensions | ASTM, ASME, and API |
| Inconel 718 Plate Width Range | 30" to 240" |
| Sheets Plates Thickness | 7 gauge to 28 gauge or 3.664mm to .321mm |
| Inconel 718 Plate Length Range | Up to144" Non-Standard or Longer Lengths Available Upon Request |
| Value added services | Cladding, Heat Treatment, Annealed, Pickling, Polish, Rolling, Cutting, Bending, Forging, Minor Fabrication Etc. |
| Hardness | Half Hard, Quarter Hard, Soft, Hard, Spring Hard |
| Form | Coils, Foils, Rolls, Strip, Flats, Blank (Circle), Ring (Flange) |
Nickel Alloy 718 Plate chemical composition
| Element | Min | Max | Element | Min | Max |
|---|---|---|---|---|---|
| Ni | 50 | 55 | Cu | - | 0.30 |
| Cr | 17 | 21 | B | - | 0.0006 |
| Fe | Bal | - | Al | 0.20 | 0.80 |
| Mo | 2.8 | 3.3 | Co | - | 1.00 |
| Nb+Ta | 4.75 | 5.50 | |||
| C | - | 0.08 | |||
| Mn | - | 0.035 | |||
| Si | - | 0.35 | |||
| P | - | 0.015 | |||
| S | - | 0.015 | |||
| Ti | 0.65 | 1.15 |
Nickel Alloy 718 Plate Mechanical Properties
| Condition / Material Form | 0.2% Proof Stress (MPa) | Tensile Strength (MPa) | Elongation |
|---|---|---|---|
| Annealed Condition | |||
| Sheet and strip | ≤ 550 | ≤ 965 | ≥ 30% |
| Plate | ≤ 725 | ≤ 1035 | ≥ 30% |
| Solution Treated & Precipitation Heat Treated Condition | |||
| (General) | ≥ 1035 | ≥ 1240 | ≥ 12% |
AMS 5596 and AMS 5597: Main Differences and Specifications
AMS 5596 (Plate, Strip, Sheet): Covers high-quality aerospace-grade materials that have undergone solution treatment, typically annealed at approximately 1775°F (968°C).
AMS 5597 (Plate, Sheet, Strip): Similar to 5596, but typically emphasizes solution annealing at 1950°F (1065°C) to achieve superior transverse ductility and improved impact strength in thick section materials.
Common features: Both are used for critical aerospace fasteners, engine parts, and casings, and can achieve 100% welding efficiency when welded with suitable filler materials (e.g., nickel-based filler metal 718).
Gnee Steel is a professional manufacturer 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. We specialize in the production and sales of alloy materials. Gnee Steel's products are widely used in aerospace, chemical, power, automotive, and nuclear energy industries, and we can provide customized alloy material solutions according to customer needs. For alloy material price inquiries or to request customized alloy material solutions, please feel free to contact us at ru@gneesteelgroup.com for a quote.