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GB S47450 Details

S47450 Application:Steels of blade for steam turbine

Category Type Grade Designations
Grades Stainless Steels S47450 China - GB , GB/T 8732 (2004) - Steels of blade for steam turbine

Chemical composition(wt.%) of S47450 grade: GB/T 8732 (2004)

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.1500 0.2000
Mn 0.5000 0.8000
P - 0.0200
S - 0.0150
Si - 0.5000
Ni 0.3000 0.6000
Cr 10.0000 12.0000
Mo 0.6000 0.9000
Cu - 0.1000
V 0.2000 0.3000
Al - 0.0300
N 0.0400 0.0900
Nb 0.2000 0.6000
S47450

Mechanical properties of grade S47450 GB/T 8732 (2004)

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)
716 (≥) 921 (≥) 23 31 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 141

Physical properties of grade S47450 GB/T 8732 (2004)

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
441 (≥) 467 (≥) 43 21 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 222
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
168 131 828

S47450 - 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
2Cr11NiMoNbVN GB China
Steels of blade for steam turbine
S47450 GB China
Steels of blade for steam turbine
S47670 GB China
Steels of blade for steam turbine

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