Grades | Superalloys | GH1138

GB GH1138

PDF | Word | Print

GH1138 Application:Iron-based superalloy

Chemical composition(mass fraction)(wt.%) of the GH1138
Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.10
Cr 18.0 22.0
Mo 2.0 2.6
Ni 35.0 40.0
W 4.5 5.2
Al - 0.5
Nb 1.0 1.7
B - 0.008
Fe - Remainder
Mn 1.0 2.0
Si - 0.8
Ce - 0.05
N 0.10 0.25
Zr - 0.05

Mechanical properties of grade GH1138

Yield
Rp0.2 (MPa)
Tensile
Rm (MPa)
Impact
KV (J)
Elongation
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition HBW
246 (≥) 618 (≥) 44 44 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 323

Physical properties of grade GH1138

Property Density
kg/dm3
Temperature T
°C/F
Specific heat
J / kgK
Thermal conductivity
W/mK
Electric resistance
µΩ·cm
118 (≥) 799 (≥) 11 21 32 Solution and Aging, Annealing, Ausaging, Q+T,etc
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
- - -
783 431 774 - - -

GH1138 Range of products
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