2Cr12MoVNbN Stainless Steels to GB/T 1221 (1992)

2Cr12MoVNbN - Specification & Application

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

Heat-resisting steel bars

Chemical composition(wt.%) of 2Cr12MoVNbN grade: to GB/T 1221 (1992)

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.15 0.20
Si - 0.50
Mn 0.50 1.00
P - 0.035
S - 0.030
Ni - 0.60
Cr 10.00 13.00
Mo 0.30 0.90
Nb 0.20 0.60
V 0.10 0.40
N 0.05 0.10

2Cr12MoVNbN - Detail

2Cr12MoVNbN

Mechanical properties of grade 2Cr12MoVNbN 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)
445 (≥) 918 (≥) 23 42 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 432

Physical properties of grade 2Cr12MoVNbN 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
765 (≥) 619 (≥) 41 32 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 343
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
586 246 778

Equivalent Grade

Equivalent Products

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