1.2709 Tool Die Steels

1.2709 - Specification & Application

High alloyed NiCoMo steel

Chemical composition(wt.%) of 1.2709 grade:

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.03
Si - 0.10
Mn - 0.15
P - 0.010
S - 0.010
Cr - 0.25
Mo 4.50 5.20
V - -
Ni 17.00 19.00
Co 8.50 10.00
Ti 0.80 1.20

1.2709 - Detail

High alloyed NiCoMo steel

Mechanical properties of grade 1.2709

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)
426 (≥) 729 (≥) 12 41 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 422

Physical properties of grade 1.2709

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
754 (≥) 654 (≥) 33 12 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 241
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
163 947 479

Equivalent Grade

Equivalent Products

We can customize the production of 1.2709 grade, contact us for the best solution.
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