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ST20E

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ST15E ST25E
#ST20E

Description

Japan JIS ST20E Carbide for cutting tools and ST20E Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Tool Steel And Hard Alloy: ST20E
Category Type Steel Grade Standard Country Application
Steel GradesTool Steel And Hard Alloy ST20E JIS Japan Carbide for cutting tools
H1
H1
H2
H2
H3
H3
ST10E
ST10E
ST15E
ST15E

Chemical composition(mass fraction)(wt.%) of the ST20E

W(%) Other(%)
70.5 TiC+Ta(Nb)C:24,Co+Ni:5.5

Mechanical Properties of steel grade ST20E

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)
968 (≥) 617 (≥) 24 11 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 342

Physical Properties of steel grade ST20E

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
42 - -     0.23 -  
111 792 - 42.3 111   -  
523 - 11 22.2   214 324

Heat Treatment of steel grade ST20E

Heat treated : 1529°C - 1294°C

Technological Curves of steel grade ST20E

Cross Reference Table (Equivalent Grade) of ST20E

Grade Standard Country Application
ST20E JIS Japan Carbide for cutting tools
ST15E ST25E
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Jiangyou Longhai Special Steel Co.,Ltd.
Jiangyou Longhai Special Steel Co.,Ltd.

Our main peoducts of steel are many kinds of special steel, like tool steel, mould steel, alloy steel, alloy constructural steel, heat-resistant steel, high speed tool steel,spring steel and bearing steel , stainless steel and so on, which have formed 12 series and more than 350 varieties with n...

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