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Description

ST30E Tool Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Tool Steel: ST30E
Category Type Steel Grade Standard Country Application
Steel GradesTool Steel ST30E
G7
G8
G10E
H1
H2
H3
ST10E
ST15E
ST20E
ST25E

Chemical composition(mass fraction)(wt.%) of the ST30E

 

 


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 ST30E

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)
738 (≥) 924 (≥) 34 42 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 223

Physical Properties of steel grade ST30E

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
43 - -     0.21 -  
335 376 - 43.3 444   -  
818 - 42 14.2   124 343

Heat Treatment of steel grade ST30E

Heat treated : 1747°C - 1166°C

Technological Curves of steel grade ST30E

Cross Reference Table (Equivalent Grade) of ST30E

Grade Standard Country Application
ST30E JIS Japan Carbide for cutting tools
ST30E JIS Japan Carbide for cutting tools

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