Superalloys
PYRAD53NW
Spécifications
Common name
INCO 718
EU
NiCr19Fe19Nb5Mo3
USA
N07718
AMS
5596
5597
5662
5663
5664
5597
5662
5663
5664
AIR
NC19FeNb
ISO Symbol
NiCr19Fe19Nb5Mo3
ISO Num
2.4668
WL
2.4668
ASTM grade
N07718
ASTM std
B637 B670
Composition
C
0.04
Ni
Base
Cr
18
Mo
3
Ti
0.9
Al
0.5
Fe
18,5
Nb
5.20
Applications
• Aerospace industry: compressor discs.
• Marine and land-based machines.
• Fasteners or diverse components requiring a particularly high yield strength and which must also be stainless or non magnetic.
Characteristics
Precipitation hardened, nickel-based superalloy with:
• Good resistance to high temperature oxidation.
• Excellent mechanical properties up to temperaratures around 700°C.
• Generally used for parts working within the 600 -700°C range.
Mechanical properties
| Heat treatment |
UTS (N/mm²) |
0,2% YS (N/mm²) |
A (%) |
|---|---|---|---|
| H + V | 1360 | 1120 | 18 |
Key to heat treatment symbols
| Solution treated | H | Annealed | R |
|---|---|---|---|
| Thermo-mechanical treatment | TM | Quenched and tempered | T+RV |
| Sub-zero treatment | F | Solution treated and aged | H+V |