Inconel® 718 AMS 5663
Inconel® 718 AMS 5663 available at Rockwell Industries (also known as Inconel alloy 718, inco718, inc718, alloy718) is a nickel-chromium-molybdenum alloy designed to resist a wide range of corrosive environments, pitting and crevice corrosion. Rockwell Industries Inconel 718 nickel alloy also displays high tensile and creep-rupture properties at elevated temperatures.
Stock sizes: 0.500”dia to 3.000” diameter
Common Specifications:
- AMS 5663
- PWA-S-5663, CPW-A-5663
- B50TF15 Classes B/C/E/F
- ASTM-B637
- ASME-SB637
- Pratt & Whitney LCS F-17
- General Electric S-400 / S-SPEC-35
- SPS-M-275
Industry Trade Names:
- Inconel 718
- Pyromet 718
- VDM 718
- ATI 718
- Nickel 718
Common Applications:
- Jet engines
- Aerospace fasteners
- Rocket motors
- Oil and gas shafts and wellhead components
Composition
| Element | Min. | Max. |
|---|---|---|
| Carbon | — | 0.8 |
| Manganese | — | 0.35 |
| Silicon | — | 0.35 |
| Phosphorus | — | 0.010 |
| Sulfur | — | 0.015 |
| Chromium | 17.00 | 21.00 |
| Nickel | 50.00 | 55.00 |
| Molybdenum | 2.80 | 3.30 |
| Copper | — | 0.30 |
| Columbium (Niobium) | 4.75 | 5.50 |
| Titanium | 0.65 | 1.15 |
| Aluminum | 0.20 | 0.80 |
| Cobalt | — | 1.00 |
| Boron | — | 0.006 |
| Lead | — | 0.0005 (5 ppm) |
| Bismuth | — | 0.00003 (0.3 ppm) |
| Selenium | — | 0.0003 (3ppm) |
| Iron | remainder |
Melt practice: VIM-VAR or VIM-ESR.
Minimum room temperature tensile properties:
| Specimen Orientation | Diameter or Least Distance Between Parallel Sides, inch | Tensile Strength ksi | Yield Strength at 002% Offset ksi | Elongation in 4D% | Reduction of Area % |
|---|---|---|---|---|---|
| Longitudinal | Up to 10.00, incl. | 185 | 150 | 12 | 15 |
| Long-Transverse (Forgings) | Up to 5.00, incl ——————- Over 5.00 to 10.00, incl | 180 —— 180 | 150 —— 145 | 10 —— 10 | 12 —— 12 |
| Transverse (Bars) | Up to 5.00, incl ——————- Over 5.00 to 10.00, incl | 180 —— 180 | 150 —— 145 | 6 —— 6 | 8 —— 8 |
