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Equivalent designations
UNS N07718
DIN W. Nr. 2.4668
|
Form |
ASTM |
|
Rod, bar and forging |
B 637 |
|
Plate, sheet and strip |
B 670, B 906 |
|
Seamless pipe and tube |
B 983 |
Chemical composition
|
% |
Ni |
Fe |
Cr |
Mo |
C |
Mn |
Si |
P |
S |
Co |
Nb+Ta |
Ti |
Al |
Cu |
B |
|
min |
50.0 |
balance |
17.0 |
2.80 |
|
|
|
|
|
|
4.75 |
0.65 |
0.20 |
|
|
|
max |
55.0 |
21.0 |
3.30 |
0.08 |
0.35 |
0.35 |
0.015 |
0.015 |
1.00 |
5.50 |
1.15 |
0.80 |
0.30 |
0.006 |
Physical properties
|
Density |
8.23 g/cm3 |
|
Melting range |
1260-1335¡æ |
Features: Inconel 718 is an age-hardenable nickel-chromium alloy that combines corrosion resistance with high strength and good fabricability. It has high creep-rupture strength at temperatures up to 700¡æ. Its excellent relaxation resistance contributes to its application in springs.
Applications: Gas turbine engines, rocket motors, nuclear reactors and spacecraft.
