GH2018

GH2018 Stainless Steels to GB/T 14992 (1994)

GH2018 - Specification & Application

  • GB/T 14992 (1994) - 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

Classification and designation for superalloys and high temperature intermetallic materials

Chemical composition(wt.%) of GH2018 grade: to GB/T 14992 (1994)

Elements Min.（≥） Max.（≤） Similar Remarks
C - 0.06
Cr 18.0 21.0
Mo 3.70 4.30
Ni 40.0 44.0
W 1.80 2.20
Al 0.35 0.75
Ti 1.80 2.20
Si - 0.60
Mn - 0.50
P - 0.020
S - 0.015
B - 0.015
Ce - 0.02
Zr - 0.05

GH2018 - Detail

GH2018

Mechanical properties of grade GH2018 GB/T 14992 (1994)

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)
846 (≥) 729 (≥) 34 44 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 414

Physical properties of grade GH2018 GB/T 14992 (1994)

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
538 (≥) 491 (≥) 11 42 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 112
Temp.
°C/°F		 Creep strain limit
(10000h)
(Rp1,0) N/mm2		 Creep rupture strength
(10000h)
(Rp1,0) N/mm2
785 822 479

Equivalent Grade

1 GH2018 2 GH2018

Equivalent Products

Product shapes we supply:

We can customize the production of GH2018 grade, contact us for the best solution.
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