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Description

ST25E Tool Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Tool Steel: ST25E
Category Type Steel Grade Standard Country Application
Steel GradesTool Steel ST25E
G6
G7
G8
G10E
H1
H2
H3
ST10E
ST15E
ST20E

Chemical composition(mass fraction)(wt.%) of the ST25E

 


WC
Si
Mn
P
S
Cr Co+Ni
72           8.5
Mo Al Cu Nb TiC+TaC(NbC) V Ce
        19.5    
N Co Pb B Other    
             
             

Mechanical Properties of steel grade ST25E

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)
141 (≥) 421 (≥) 24 32 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 343

Physical Properties of steel grade ST25E

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
41 - -     0.12 -  
999 268 - 12.3 243   -  
328 - 43 21.2   113 231

Heat Treatment of steel grade ST25E

Heat treated : 1898°C - 1321°C

Technological Curves of steel grade ST25E

Cross Reference Table (Equivalent Grade) of ST25E

Grade Standard Country Application
ST25E Carbide for cutting tools
ST25E Carbide for cutting tools

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