D1 Tool Die Steels

D1 - Specification & Application

Cold-Work Tool Steel

Chemical composition(wt.%) of D1 grade:

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.90 1.10
Si 0.10 0.40
Mn 0.20 0.40
Cr 11.50 12.50
Mo 0.70 0.80
V 0.30 0.80
W - -

D1 - Detail

Cold-Work Tool Steel

Mechanical properties of grade D1

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)
462 (≥) 836 (≥) 41 21 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 214

Physical properties of grade D1

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
868 (≥) 215 (≥) 43 22 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 323
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
674 736 558
We can customize the production of D1 grade, contact us for the best solution.
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