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ICI 4140

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ICI 4130 ASTM 8Q
#ICI # #4140

Description

USA AISI ICI 4140 and ICI 4140 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Alloy: ICI 4140
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Alloy ICI 4140 AISI USA
ASTM 3A,3Q
ICI 1040
ICI 1050
ASTM 4A,4Q
ICI 6120
ASTM 5N
ASTM 6N
ICI 4020
ASTM 7Q
ICI 4130

Chemical composition(mass fraction)(wt.%) of the ICI 4140

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) Mo(％) W(%) Cu(%)
0.35-0.45 0.20-0.80 0.70-1.00 Max 0.04 Max 0.045 0.80-1.10 Max 0.50 0.15-0.25 Max 0.10 Max 0.50

Mechanical Properties of steel grade ICI 4140

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)
737 (≥) 737 (≥) 12 41 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 224

Physical Properties of steel grade ICI 4140

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
23 - -     0.42 -  
236 384 - 43.3 234   -  
547 - 22 11.2   141 144

Heat Treatment of steel grade ICI 4140

Heat treated : 1447°C - 1492°C

Technological Curves of steel grade ICI 4140

Cross Reference Table (Equivalent Grade) of ICI 4140

Grade Standard Country Application
ICI 1020 AISI USA
ICI 1030 AISI USA
ICI 1040 AISI USA
ICI 1050 AISI USA
ICI 6120 AISI USA
ICI 4020 AISI USA
ICI 4130 AISI USA
ICI 4140 AISI USA
ICI 4330 AISI USA
ICI 4340 AISI USA
ICI 4620 AISI USA
ICI 6150 AISI USA
ICI 8620 AISI USA
ICI 8630 AISI USA
ICI 52100 AISI USA
OTA10TiMoNiCil70 STAS/SR Romania Cast Steel
Q195 GBT China Engineering and welding
Q215 China Engineering and welding
Q215 B China Engineering and welding
Q235 China Engineering and welding
ICI 4130 ASTM 8Q
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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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