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America SAE 3240 Former SAE Standard and Former SAE Ex-Steels and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 3240 / 3240
Category Grade Standard Region/Area Standard Content
Metals 3240 SAE J 1249 America Former SAE Standard and Former SAE Ex-Steels

Chemical composition(mass fraction)(wt.%) of the 3240

Element Min Max Similar
Si 0.1500 0.3000 -
S - 0.0400 -
P - 0.0400 -
Ni 1.5000 2.0000 -
Mn 0.3000 0.6000 -
Cr 0.9000 1.2500 -
C 0.3500 0.4500 -

Mechanical Properties of steel grade 3240

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)
615 (≥) 396 (≥) 31 41 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 134

Physical Properties of steel grade 3240

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
13 - -     0.14 -  
612 661 - 12.3 143   -  
342 - 43 33.2   114 344

Heat Treatment of steel grade 3240

Heat treated : 1238°C - 1431°C

Technological Curves of steel grade 3240

Cross Reference Table (Equivalent Grade) of 3240

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