X12CrNiMoV12-3 Stainless Steels to ISO/TR 4956

X12CrNiMoV12-3 - Specification & Application

  • ISO/TR 4956 - Wrought steels for use at elevated temperatures in engines

Wrought steels for use at elevated temperatures in engines

Chemical composition(wt.%) of X12CrNiMoV12-3 grade: to ISO/TR 4956

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.08 0.15
Si - 0.35
Mn 0.50 0.90
P - 0.030
S - 0.025
Cr 11.00 12.50
Mo 1.50 2.00
Ni 2.00 3.00
V 0.25 0.40
N 0.02 0.04

X12CrNiMoV12-3 - Detail

Wrought steels for use at elevated temperatures in engines

Mechanical properties of grade X12CrNiMoV12-3 ISO/TR 4956

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)
418 (≥) 863 (≥) 21 43 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 332

Physical properties of grade X12CrNiMoV12-3 ISO/TR 4956

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
454 (≥) 157 (≥) 22 44 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 132
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
147 573 933

Equivalent Products

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