40CrMnMoS8-6 Tool Die Steels to DIN 17350 (1980)

40CrMnMoS8-6 - Specification & Application

  • DIN 17350 (1980) - Tool Steels; Technical Conditions of Delivery

Tool Steels; Technical Conditions of Delivery

Chemical composition(wt.%) of 40CrMnMoS8-6 grade: to DIN 17350 (1980)

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.35 0.45
Si 0.30 0.50
Mn 1.40 1.60
P - 0.030
S 0.05 0.10
Cr 1.80 2.00
Mo 0.15 0.25
V - -

40CrMnMoS8-6 - Detail

Tool Steels; Technical Conditions of Delivery

Mechanical properties of grade 40CrMnMoS8-6 DIN 17350 (1980)

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)
188 (≥) 836 (≥) 42 31 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 224

Physical properties of grade 40CrMnMoS8-6 DIN 17350 (1980)

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
925 (≥) 417 (≥) 14 22 23 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
483 497 685

Equivalent Products

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