140Cr3 Tool Die Steels

140Cr3 - Specification & Application

Low alloyed Cr steel

Chemical composition(wt.%) of 140Cr3 grade:

Elements Min.(≥) Max.(≤) Similar Remarks
C 1.35 1.50
Si 0.15 0.30
Mn 0.25 0.40
P - 0.035
S - 0.035
Cr 0.40 0.70
Mo - -
V - -

140Cr3 - Detail

Low alloyed Cr steel

Mechanical properties of grade 140Cr3

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)
274 (≥) 847 (≥) 31 22 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 241

Physical properties of grade 140Cr3

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
564 (≥) 138 (≥) 42 34 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 231
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
177 289 329

Equivalent Grade

Equivalent Products

We can customize the production of 140Cr3 grade, contact us for the best solution.
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