O6 Tool Die Steels

O6 - Specification & Application

Oil-Hardening Tool Steel

Chemical composition(wt.%) of O6 grade:

Elements Min.(≥) Max.(≤) Similar Remarks
C 1.25 1.55
Si 0.55 1.50
Mn 0.30 1.10
P - 0.030
S - 0.030
Cr - 0.30
Mo 0.20 0.30
V - -
W - -
Ni+Cu - 0.75

O6 - Detail

Oil-Hardening Tool Steel

Mechanical properties of grade O6

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)
429 (≥) 316 (≥) 43 33 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 414

Physical properties of grade O6

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
788 (≥) 264 (≥) 34 33 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 411
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
724 964 191

Equivalent Products

We can customize the production of O6 grade, contact us for the best solution.
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