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X40CrMnNiMo8-6-4

Description

X40CrMnNiMo8-6-4 Tool Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Tool Steel: X40CrMnNiMo8-6-4
Category Type Steel Grade Standard Country Application
Steel GradesTool Steel X40CrMnNiMo8-6-4
C120U
105V
50WCrV8
60WCrV8
102Cr6
70MnMoCr8
95MnWCr5
X100CrMoV5
X153CrMoV12
35CrMo7

Chemical composition(mass fraction)(wt.%) of the X40CrMnNiMo8-6-4

 

Si 
Mn 
 P
 S
Cr   Ni  Mo  Other
 0.35-0.45  0.20-0.40  1.30-1.60  0.030  0.030  1.80-2.10  0.90-1.20  0.15-0.25  

Mechanical Properties of steel grade X40CrMnNiMo8-6-4

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)
723 (≥) 249 (≥) 14 23 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 342

Physical Properties of steel grade X40CrMnNiMo8-6-4

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
44 - -     0.44 -  
582 758 - 32.3 241   -  
874 - 42 11.2   131 142

Heat Treatment of steel grade X40CrMnNiMo8-6-4

Heat treated : 1865°C - 1825°C

Technological Curves of steel grade X40CrMnNiMo8-6-4


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