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E4

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Description

Japan JIS E4 carbide geological mining tools① and E4 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Tool Steel And Hard Alloy: E4
Category Type Steel Grade Standard Country Application
Steel GradesTool Steel And Hard Alloy E4 JIS Japan carbide geological mining tools①
V10
V10
V20
V20
V30
E1
E2
E2
E3
E3

Chemical composition(mass fraction)(wt.%) of the E4

W(%) Co(%)
87-92 8-13

Mechanical Properties of steel grade E4

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)
427 (≥) 261 (≥) 24 22 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 333

Physical Properties of steel grade E4

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
22 - -     0.32 -  
289 172 - 43.3 232   -  
224 - 11 32.2   423 211

Heat Treatment of steel grade E4

Heat treated : 1683°C - 1811°C

Technological Curves of steel grade E4

Cross Reference Table (Equivalent Grade) of E4

Grade Standard Country Application
E4 JIS Japan carbide geological mining tools①
E441 UK Carbide for cutting tools
E441 UK Carbide for cutting tools
E6 AFNOR France Carbide for cutting tools
E6 AFNOR France Carbide for cutting tools
Type410S UNS USA Martensitic special steel
Type410S UNS USA Martensitic special steel
Type410Cb(XM-30) UNS USA Martensitic special steel
Type410Cb(XM-30) UNS USA Martensitic special steel
Type418(GreekAscollOy) UNS USA
Type418(GreekAscollOy) UNS USA
S42023 UNS USA Martensitic special steel
S42023 UNS USA Martensitic special steel
Type420FSe UNS USA Martensitic special steel
Type420FSe UNS USA Martensitic special steel
Type440F UNS USA Martensitic special steel
Type440F UNS USA Martensitic special steel
E40 STAS/SR Romania Structural steel
EN Fe42B1FU EN Euronorm Euronorm Structural steel
EN Fe42B1FN EN Euronorm Euronorm Structural steel
E3 E5
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Jiangyou Longhai Special Steel Co.,Ltd.

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