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GB GH2302 Details

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GH2302 Application:Classification and designation for superalloys and high temperature intermetallic materials

Category Type Grade Designations
Grades Stainless Steels GH2302 China - GB , 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
GB/T 14995 (2010) - Hot-rolled superalloy sheets
GB/T 14996 (2010) - Cold-Rolled heat-resisting superalloy sheets

Chemical composition(wt.%) of GH2302 grade: GB/T 14992 (2005)

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.08
Cr 12.0 16.0
Mo 1.50 2.50
Ni 38.0 42.0
W 3.50 4.50
Al 1.80 2.80
Ti 2.30 2.80
Si - 0.60
Mn - 0.60
P - 0.020
S - 0.010
B - 0.01
Ce - 0.02
Zr - 0.05
GH2302

Mechanical properties of grade GH2302 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)
953 (≥) 745 (≥) 32 22 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 141

Physical properties of grade GH2302 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
775 (≥) 428 (≥) 23 21 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 131
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
571 559 583

GH2302 - Form of Supply

Product type Products Dimension Processes Deliver Status
Plates / Sheets Plates / Sheets 0.08-200mm(T)*W*L Forging, hot rolling and cold rolling Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Steel Bar Round Bar, Flat Bar, Square Bar Φ8-1200mm*L Forging, hot rolling and cold rolling, Cast Black, Rough Turning, Shot Blasting,
Coil / Strip Steel Coil /Steel Strip 0.03-16.0x1200mm Cold-Rolled & Hot-Rolled Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Pipes / Tubes Seamless Pipes/Tubes, Welded Pipes/Tubes OD:6-219mm x WT:0.5-20.0mm Hot extrusion, Cold Drawn, Welded Annealed, Solution and Aging, Q+T, ACID-WASHED

Cross Reference Table(Equivalent Grade)

Grade Standard Country Application
GH2302 GB China
Classification and designation for superalloys and high temperature intermetallic materials

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