ALLOY 718 | 2.4668 - Data sheet
UNS N07718 | AMS 5662 | AMS 5663 | ASTM B637 | AMS 5596 | ASTM B670 | DMD 424-22
Alloy 718 is a precipitation hardened nickel-chromium alloy with additions of niobium, molybdenum, aluminum and titanium for improved corrosion resistance combined with extremely high strength and excellent weldability, including resistance to cracking after welding. Alloy 718 has excellent creep rupture strength at temperatures up to 700 °C. Alloy 718 achieves its strength through a precipitation hardening heat treatment and can be supplied in a ready-to-anneal solution to facilitate processing, after which it is heat treated to achieve full strength, or the material can be supplied in the fully precipitation-hardened state.
Product forms for ALLOY 718 | 2.4668
- 12,70 mm Ø
- 16,00 mm Ø
- 20,00 mm Ø
- 25,00 mm Ø
- 25,40 mm Ø
- 32,00 mm Ø
- 35,00 mm Ø
- 40,00 mm Ø
- 45,00 mm Ø
- 50,80 mm Ø
- 65,00 mm Ø
- 76,20 mm Ø
- 82,50 mm Ø
- 85,00 mm Ø
- 95,00 mm Ø
- 101,60 mm Ø
- 114,30 mm Ø
- 127,00 mm Ø
- 152,40 mm Ø
- 165,10 mm Ø
- 177,80 mm Ø
- 187,32 mm Ø
- 12,70 mm Ø
- 20,00 mm Ø
- 25,40 mm Ø
- 35,00 mm Ø
- 50,80 mm Ø
- 60,00 mm Ø
- 76,20 mm Ø
- 88,90 mm Ø
- 101,60 mm Ø
- 12,70 mm
- 16,00 mm
- 25,40 mm
- 32,00 mm
- 44,45 mm
- 50,80 mm
- 101,60 mm
Areas of application for ALLOY 718 | 2.4668
Gas turbine compressor blades, disks and shafts; high strength springs; high strength fasteners; pumps and valves.
Characteristics ALLOY 718 | 2.4668
Chemical composition - limits in %
| Ni | 50,00 - 55,00 |
| Cr | 17,00 - 21,00 |
| Nb | 4,75 - 5,50 |
| Mo | 2,80 - 3,30 |
| Co | max. 1,00 |
| Ti | 0,65 - 1,15 |
| Mn | max. 0,35 |
| Al | 0,20 - 0,80 |
| C | max. 0,08 |
| Fe | Rest |
Physical constants and thermal properties
| Density | 8,19 g/cm³ |
| Melting point | 1260 - 1336 °C |
| Thermal conductivity at 20°C | 9,5 W/m · °C |
| Coefficient of expansion at 21 - 93°C |
13,1 μm/m · °C |
Typical mechanical properties (room temperature)
| Specification | AMS 5663 | AMS 5596 |
|---|---|---|
| Yield strength | min. 1034 MPa | min. 1034 MPa |
| Tensile strength | min. 1275 MPa | min. 1240 MPa |
| Elongation | min. 12% | min. 12% |
All information is subject to change without notice. The properties correspond to the material in the heading. They may vary for other specifications. Please contact us for more details.
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Julius Mönkeberg
Product Manager Nickel and Cobalt Alloys
+49 4174 66 94-118
j.moenkeberg@sd-metals.com
Jacob Schmidt
Sales Nickel and Cobalt Alloys
+49 4174 66 94-217
j.schmidt@sd-metals.com
