75CrMoNiW6-7 Tool Die Steels

75CrMoNiW6-7 - Specification & Application

Alloyed CrMoNiW steel

Chemical composition(wt.%) of 75CrMoNiW6-7 grade:

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.70 0.80
Si 0.15 0.30
Mn 0.15 0.53
P - 0.035
S - 0.035
Cr 1.40 1.60
Mo 0.60 0.80
V - -
Ni 0.40 0.60
W 0.20 0.40

75CrMoNiW6-7 - Detail

Alloyed CrMoNiW steel

Mechanical properties of grade 75CrMoNiW6-7

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)
842 (≥) 312 (≥) 41 11 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 144

Physical properties of grade 75CrMoNiW6-7

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
816 (≥) 484 (≥) 14 43 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 312
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
781 622 449

Equivalent Grade

Equivalent Products

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