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GB 12Cr12Mo / 1Cr12Mo Details

12Cr12Mo 1Cr12Mo

12Cr12Mo / 1Cr12Mo Application:Steel of Blade for Steam turbine

Category Type Grade Designations
Grades Stainless Steels - Special Steels 12Cr12Mo / 1Cr12Mo China - GB , GB/T 8732-2014 - Steel of Blade for Steam turbine

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤)
C 0.10 0.15
Si - 0.50
Mn 0.30 0.60
P - 0.030
S - 0.020
Ni 0.30 0.60
Cr 11.50 13.00
Mo 0.30 0.60
Cu - 0.30

Mechanical properties of grade 12Cr12Mo / 1Cr12Mo

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)
524 (≥) 882 (≥) 14 32 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 432

Physical properties of grade 12Cr12Mo / 1Cr12Mo

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
345 (≥) 231 (≥) 41 24 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 233
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
865 116 618

12Cr12Mo / 1Cr12Mo - 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
12Cr12Mo / 1Cr12Mo GB China
Steel of Blade for Steam turbine
1Cr12Mo GB China
Heat-resisting steel bars

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