GH1140

GH1140 Stainless Steels to GB/T 14992 (2005)

GH1140 - Specification & Application

  • GB/T 14992 (2005) - Classification and designation for superalloys and high temperature intermetallic materials
  • GB/T 14995 (2010) - Hot-rolled superalloy sheets
  • GB/T 14996 (2010) - Cold-Rolled heat-resisting superalloy sheets
  • GB/T 14998 (1994) - Heat-resisting superalloy blanks for forged rings
  • GB/T 15062 (2008) - Superalloy tube for general application

Classification and designation for superalloys and high temperature intermetallic materials

Chemical composition(wt.%) of GH1140 grade: to GB/T 14992 (2005)

Elements Min.（≥） Max.（≤） Similar Remarks
C 0.06 0.12
Cr 20.0 23.0
Mo 2.00 2.50
Ni 35.0 40.0
W 1.40 1.80
Al 0.20 0.60
Ti 0.70 1.20
Si 0.80 0.70
P - 0.025
S - 0.015
Ce - 0.05

GH1140 - Detail

GH1140

Mechanical properties of grade GH1140 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)
197 (≥) 143 (≥) 24 34 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 233

Physical properties of grade GH1140 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
829 (≥) 862 (≥) 41 21 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 223
Temp.
°C/°F		 Creep strain limit
(10000h)
(Rp1,0) N/mm2		 Creep rupture strength
(10000h)
(Rp1,0) N/mm2
746 638 339

Equivalent Grade

1 GH1140 2 GH1140

Equivalent Products

Product shapes we supply:

We can customize the production of GH1140 grade, contact us for the best solution.
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