N07718 Superalloys

N07718 - Specification & Application

Ni-Cr Alloy Precipitation Hardenable

Chemical composition(wt.%) of N07718 grade:

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.03
Cr 17.0 21.0
Mo 2.80 3.30
Ni 50.0 55.0
Al 0.20 0.60
Nb 4.75 5.50
Fe - Bal
Si - 0.35
Mn - 0.35
P - 0.015
S - 0.015
B - 0.006

N07718 - Detail

Ni-Cr Alloy Precipitation Hardenable

Mechanical properties of grade N07718

Proof strength
Rp0.2 (MPa)
Tensile strength
Rm (MPa)
Impact energy
KV (J)
Elongation at fracture
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
381 (≥) 957 (≥) 33 13 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 114

Physical properties of grade N07718

Property Density
kg/dm3
Temperature T
°C/F
Specific heat
J / kgK
Thermal conductivity
W/mK
Electric resistance
µΩ·cm
Modulus of elasticity
kN/mm2
Expansion rate
531 (≥) 414 (≥) 13 12 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 423
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
667 725 639
We can customize the production of N07718 grade, contact us for the best solution.
sales@specificsteel.com