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GB S47670 Details

S47670

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S47670 Application:Steels of blade for steam turbine
Category Type Grade Designations
Grades Stainless Steels S47670 China - GB , GB/T 8732 (2004) - Steels of blade for steam turbine
Chemical composition(mass fraction)(wt.%)
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
Mechanical properties of grade S47670
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)
723 (≥) 899 (≥) 42 31 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 431
Physical properties of grade S47670
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
863 (≥) 844 (≥) 13 22 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 313
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
845 899 545
S47670 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
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