2Cr12NiMoWV Stainless Steels to GB/T 1221 (1992)

2Cr12NiMoWV - Specification & Application

  • GB/T 1221 (1992) - Heat-resisting steel bars

Heat-resisting steel bars

Chemical composition(wt.%) of 2Cr12NiMoWV grade: to GB/T 1221 (1992)

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.20 0.25
Si - 0.50
Mn 0.50 1.00
P - 0.035
S - 0.030
Ni 0.50 1.00
Cr 11.00 13.00
Mo 0.75 1.25
W 0.70 1.25
V 0.20 0.40

2Cr12NiMoWV - Detail

2Cr12NiMoWV

Mechanical properties of grade 2Cr12NiMoWV 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)
621 (≥) 735 (≥) 12 32 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 212

Physical properties of grade 2Cr12NiMoWV 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
429 (≥) 362 (≥) 44 11 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 244
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
885 389 886

Equivalent Grade

Equivalent Products

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