74NiCr2 Tool Die Steels

74NiCr2 - Specification & Application

Alloyed NiCr steel

Chemical composition(wt.%) of 74NiCr2 grade:

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.70 0.78
Si 0.10 0.25
Mn 0.35 0.45
P - 0.035
S - 0.035
Cr 0.20 0.30
Mo - -
V - -
Ni 0.50 0.60

74NiCr2 - Detail

Alloyed NiCr steel

Mechanical properties of grade 74NiCr2

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)
828 (≥) 513 (≥) 12 31 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 423

Physical properties of grade 74NiCr2

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
181 (≥) 295 (≥) 32 43 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 144
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
884 786 652

Equivalent Grade

Equivalent Products

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