40CrMoV4-6 Stainless Steels to ISO/TR 4956

40CrMoV4-6 - 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 40CrMoV4-6 grade: to ISO/TR 4956

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.36 0.44
Si 0.15 0.35
Mn 0.45 0.85
P - 0.030
S - 0.030
Cr 0.90 1.20
Mo 0.55 0.75
Ni - -
V 0.25 0.35

40CrMoV4-6 - Detail

Wrought steels for use at elevated temperatures in engines

Mechanical properties of grade 40CrMoV4-6 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)
448 (≥) 337 (≥) 23 12 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 311

Physical properties of grade 40CrMoV4-6 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
826 (≥) 528 (≥) 14 24 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 313
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
335 713 563

Equivalent Products

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