Nickel Alloy UNS N07718 Inconel 718
Product Overview of Inconel 718:
Inconel718 precipitation sclerosis type of molybdenum alloy containing niobium, nichrome, under 650 ºC has high strength, good toughness and has good corrosion resistance in high and low temperature environment.Delivery status can be a solid solution treatment or precipitation hardening state.
You can find below Characters of Inconel 718:
(1) good workability, in the state of annealing;
(2) good tensile strength, fatigue strength, creep rupture strength;
(3) when up to 700°C, has good high-temperature strength;
(4) when up to 1000°C, has good oxidation resistance;
(5) At low temperature with excellent mechanical properties;
(6)After the performance of arc welding, no welding crack sensitivity
Application Field of Inconel 718:
(1)steam turbine
(2)liquid fuel rocket
(3)cryogenic engineering
(4)acid environment
(6)extrusion die
Chemical Compositon of Inconel 718 Wt.%:
| Inconel 718 (Gh4169/UNS N07718) |
| % |
Ni |
Cr |
Fe |
Mo |
Nb+Ta |
C |
Mn |
Si |
S |
P |
Cu |
Al |
Ti |
B |
| Min |
50 |
17 |
Bal. |
2.8 |
4.75 |
- |
- |
- |
- |
- |
0.20 |
0.65 |
- |
- |
| Max |
55 |
21 |
Bal. |
3.3 |
5.50 |
0.08 |
0.35 |
0.35 |
0.015 |
0.015 |
0.30 |
0.80 |
1.15 |
0.006 |
Inconel 718's Min Value of Mechanical Properties at normal temperature:
| Typical Mechanical Properties |
Tensile Srength Rm N/mm2 |
Yield Strength Rp0.2N/mm2 |
Elongation A5 % |
Hardness HB |
| solution treatment |
965 |
550 |
30 |
Max 363 |
Close Grade:
GH4169,GH169 (China),
NC19FeNb (France),
NiCr19Fe19Nb5,Mo3 (Germany),
NA 51 (Britain),
Inconel718,UNS NO7718 (USA) ,
NiCr19Nb5Mo3 (ISO)
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