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America SAE 6140 Former SAE Standard and Former SAE Ex-Steels and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 6140 / 6140
Category Grade Standard Region/Area Standard Content
Metals 6140 SAE J 1249 America Former SAE Standard and Former SAE Ex-Steels

Chemical composition(mass fraction)(wt.%) of the 6140

Element Min Max Similar

Mechanical Properties of steel grade 6140

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)
847 (≥) 365 (≥) 34 23 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 322

Physical Properties of steel grade 6140

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
31 - -     0.33 -  
832 569 - 43.3 324   -  
222 - 31 21.2   232 344

Heat Treatment of steel grade 6140

Heat treated : 1345°C - 1982°C

Technological Curves of steel grade 6140

Cross Reference Table (Equivalent Grade) of 6140

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