1Cr11MoV Stainless Steels to GB/T 1221 (1992)

1Cr11MoV - Specification & Application

  • GB/T 1221 (1992) - Heat-resisting steel bars
  • GB/T 8732 (2004) - Steels of blade for steam turbine

Steels of blade for steam turbine

Chemical composition(wt.%) of 1Cr11MoV grade: to GB/T 1221 (1992)

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.11 0.18
Si - 0.50
Mn - 0.60
P - 0.035
S - 0.030
Ni - 0.60
Cr 10.00 11.50
Mo 0.50 0.70
V 0.25 0.40

1Cr11MoV - Detail

1Cr11MoV

Mechanical properties of grade 1Cr11MoV GB/T 1221 (1992)

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)
773 (≥) 888 (≥) 32 14 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 144

Physical properties of grade 1Cr11MoV GB/T 1221 (1992)

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
654 (≥) 843 (≥) 44 43 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 122
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
975 461 581

Equivalent Grade

Equivalent Products

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