C70W2 Tool Die Steels

C70W2 - Specification & Application

High carbon steel

Chemical composition(wt.%) of C70W2 grade:

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.65 0.74
Si 0.10 0.30
Mn 0.10 0.25
P - 0.030
S - 0.030

C70W2 - Detail

High carbon steel

Mechanical properties of grade C70W2

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)
572 (≥) 472 (≥) 14 23 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 434

Physical properties of grade C70W2

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
318 (≥) 129 (≥) 32 22 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 142
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
189 343 349

Equivalent Grade

Equivalent Products

We can customize the production of C70W2 grade, contact us for the best solution.
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