55NiCrMoV6 Tool Die Steels

55NiCrMoV6 - Specification & Application

Low alloyed NiCrMo steel

Chemical composition(wt.%) of 55NiCrMoV6 grade:

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.50 0.60
Si 0.10 0.40
Mn 0.65 0.95
P - 0.030
S - 0.030
Cr 0.60 0.80
Mo 0.25 0.35
V 0.07 0.12
Ni 1.50 1.80

55NiCrMoV6 - Detail

Low alloyed NiCrMo steel

Mechanical properties of grade 55NiCrMoV6

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)
779 (≥) 256 (≥) 14 32 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 431

Physical properties of grade 55NiCrMoV6

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
192 (≥) 263 (≥) 13 13 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 422
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
383 846 129

Equivalent Grade

Equivalent Products

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