GH4049 Stainless Steels to GB/T 14992 (2005)

GH4049 - Specification & Application

  • GB/T 14992 (2005) - Classification and designation for superalloys and high temperature intermetallic materials
  • GB/T 14993 (1994) - Hot-rolled heat-resisting superalloy bars for rotating parts

Classification and designation for superalloys and high temperature intermetallic materials

Chemical composition(wt.%) of GH4049 grade: to GB/T 14992 (2005)

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.10
Cr 9.50 11.0
Mo 4.50 5.50
Ni - Remainder
W 5.00 6.00
Al 3.70 4.40
Ti 1.40 1.90
Fe - 1.5
Si - 0.50
Mn - 0.50
P - 0.010
S - 0.010
B - 0.015
Ce - 0.02
V 0.20 0.50

GH4049 - Detail

GH4049

Mechanical properties of grade GH4049 GB/T 14992 (2005)

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)
678 (≥) 951 (≥) 14 24 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 344

Physical properties of grade GH4049 GB/T 14992 (2005)

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
216 (≥) 281 (≥) 12 24 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 313
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
423 387 618

Equivalent Grade

Equivalent Products

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