Standard Grade |
Trade Name |
UNS No. |
DIN |
BS |
JIS |
French Specs |
INCONEL 718 |
UNS N07718 |
WS 2.4668 |
- |
- |
- |
|
Specification |
SAE AMS 5589, SAE AMS 5590, ASME Code Case N-253, DIN 17751 |
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Typical use
|
Alloy 718 (UNS N07718, W Nr 2.4668) is an austenitic nickel-based superalloy. Alloy 718 exhibits excellent high yield tensile and creep-rupture properties at temperatures up to 1300ºF and oxidation resistance to 1800ºF. Alloy 718 is used in applications that require high strength such as parts for jet engines and high speed airframe parts such as wheels, buckets, spacers and high temperature bolts and fasteners. |
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Weight Formula |
Average Wall: (OD-WT) x WT x 0,0260 = Kg/m (all sizes in mm) |
Chemical Composition Limits |
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Weight % |
C |
Mn |
P |
S |
Si |
Cr |
Ni |
Mo |
Cb |
Ta |
Ti |
Al |
Co |
B |
Cu |
Fe |
Alloy 718 |
0.08 |
0.35 |
0.015 |
0.015 |
0.35 |
17-21 |
50-55 |
2.8-3.30 |
4.75-5.50 |
0.05 |
0.65-1.15 |
0.20-0.80 |
1.00 |
0.006 |
0.30 |
Rem |
Material |
Condition |
Tensile Strength Ksi |
Yield Strength Ksi |
Elongation (%) |
Hardness |
AMS 5589 Tube |
Solution Annealed |
155 |
95 |
30 |
|
AMS 5589 Tube |
Solution Annealed and Aging |
185 |
150 |
12 |
≥36 HRC |
(1700°F-1850°F Solution Anneal) |