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America SAE 4027 Former SAE Standard and Former SAE Ex-Steels and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 4027 / 4027
Category Grade Standard Region/Area Standard Content
Metals 4027 SAE J 1249 America Former SAE Standard and Former SAE Ex-Steels

Chemical composition(mass fraction)(wt.%) of the 4027

Element Min Max Similar
Si 0.1500 0.3500 -
S - 0.0400 -
P - 0.0300 -
Mo 0.2000 0.3000 -
Mn 0.7000 0.9000 -
C 0.2500 0.3000 -
Si 0.1500 0.3500 -
S - 0.0400 -
Pb 0.1500 0.3500 -
P - 0.0300 -
Ni - 0.2500 -
Mo 0.2000 0.3000 -
Mn 0.7000 0.9000 -
Cu - 0.3500 -
Cr - 0.2000 -
C 0.2500 0.3000 -

Mechanical Properties of steel grade 4027

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)
321 (≥) 525 (≥) 41 42 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 124

Physical Properties of steel grade 4027

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
44 - -     0.23 -  
995 129 - 14.3 212   -  
257 - 13 14.2   444 341

Heat Treatment of steel grade 4027

Heat treated : 1321°C - 1732°C

Technological Curves of steel grade 4027

Cross Reference Table (Equivalent Grade) of 4027

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