Main Content

Carbon Steel 4140 Annealed

Material Group

Material GroupCarbon Steel
Alloy4140 Annealed
Equivalent Grades42CrMo4
TechnologyCNC Machining & Turning

Mechanical Properties

Elongation %26
Tensile Strength MPa740
Yield Strength MPa660
Shear Strength MPa470
Hardness Brinell200

Physical Properties

Density g/cm37.8
Melting Point (±50) °C1460
Thermal Conductivity W/mK43
Coefficient of Thermal expension
Electrical Conductivity %IACS7.3

Composition

Al
Cu
Mg
Fe (max)96.78-97.77
Tin (max)
Ni (max)
Cr0.8-1.1
C0.38-0.43
Mo0.15-0.25
Mn0.75-1
Si0.15-0.35
Zn
Sn
Ca
Ni
Bi
Ti
S0.04
Sb
P0.035
Pb
Cd
Other