X12CrMo12-6 Stainless Steels to ISO/TR 4956

X12CrMo12-6 - 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 X12CrMo12-6 grade: to ISO/TR 4956

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.08 0.16
Si - 0.60
Mn 0.40 1.00
P - 0.035
S - 0.035
Cr 11.50 13.00
Mo 0.40 0.80
Ni - 1.00
V - -

X12CrMo12-6 - Detail

Wrought steels for use at elevated temperatures in engines

Mechanical properties of grade X12CrMo12-6 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)
229 (≥) 949 (≥) 32 34 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 333

Physical properties of grade X12CrMo12-6 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
538 (≥) 258 (≥) 24 31 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 232
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
345 496 361

Equivalent Grade

Equivalent Products

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