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Description

120W4 Tool Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Tool Steel: 120W4

Chemical composition(mass fraction)(wt.%) of the 120W4

 

Si 
Mn 
 P
 S
Cr   Ni  Mo  Other
 1.15-1.25  0.15-0.30  0.20-0.35  0.035  0.035  0.15-0.25      W   0.90-1.10

Mechanical Properties of steel grade 120W4

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)
889 (≥) 968 (≥) 12 34 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 412

Physical Properties of steel grade 120W4

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
34 - -     0.21 -  
297 933 - 34.3 234   -  
243 - 43 34.2   213 242

Heat Treatment of steel grade 120W4

Heat treated : 1172°C - 1375°C

Technological Curves of steel grade 120W4

Cross Reference Table (Equivalent Grade) of 120W4

Grade Standard Country Application
120W4 DIN Germany Cold working alloy tool steel

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