GH4698 Superalloys

GH4698 - Specification & Application

Nickel-base superalloy

Chemical composition(wt.%) of GH4698 grade:

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.08
Cr 13.0 16.0
Mo 2.8 3.2
Ni - Remainder
Al 1.3 1.7
Nb 1.8 2.2
Ti 2.35 2.75
B - 0.005
Fe - 2.0
Ce - 0.005

GH4698 - Detail

GH4698

Mechanical properties of grade GH4698

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)
243 (≥) 697 (≥) 22 43 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 243

Physical properties of grade GH4698

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
889 (≥) 917 (≥) 13 31 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 334
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
414 423 191

Equivalent Grade

Equivalent Products

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