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X 40 CrMoV 5 1 1 KU

Italy UNI X40CrMoV511KU Hot rolled or forged finished steel products for tools. Special alloyed steel qualities for hot working and Mechanical Properties, Chemical Element, Cross Reference.

Category Grade Standard Region/Area Standard Content
Metals X 40 CrMoV 5 1 1 KU UNI 2955-4 Italy Hot rolled or forged finished steel products for tools. Special alloyed steel qualities for hot working

Chemical composition(mass fraction)(wt.%) of the X 40 CrMoV 5 1 1 KU

Element Min Max Similar
V 0.8500 1.1500 -
Si 0.9000 1.2000 -
S - 0.0300 -
P - 0.0300 -
Mo 1.2000 1.7000 -
Mn 0.2500 0.5500 -
Cr 4.5000 5.5000 -
C 0.3500 0.4500 -

Mechanical Properties of steel grade X 40 CrMoV 5 1 1 KU

Yield
Rp0.2 (MPa)
Tensile
Rm (MPa)
Impact
KV/Ku (J)
Elongation
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
896 (≥) 534 (≥) 13 34 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 442

Physical Properties of steel grade X 40 CrMoV 5 1 1 KU

Temperature
(°C)
Modulus of elasticity
(GPa)
Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)
Specific thermal capacity
(J/kg·°C)
Specific electrical resistivity
(Ω mm²/m)
Density
(kg/dm³)
Poisson’s coefficient, ν
24 - -     0.23 -  
366 173 - 31.3 134   -  
285 - 11 22.2   411 434

Heat Treatment of steel grade X 40 CrMoV 5 1 1 KU

Heat treated : 1332°C - 1133°C

Technological Curves of steel grade X 40 CrMoV 5 1 1 KU

Cross Reference Table (Equivalent Grade) of X 40 CrMoV 5 1 1 KU

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