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America SAE 4812 Former SAE Standard and Former SAE Ex-Steels and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 4812 / 4812
Category Grade Standard Region/Area Standard Content
Metals 4812 SAE J 1249 America Former SAE Standard and Former SAE Ex-Steels

Chemical composition(mass fraction)(wt.%) of the 4812

Element Min Max Similar

Mechanical Properties of steel grade 4812

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)
119 (≥) 536 (≥) 43 24 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 242

Physical Properties of steel grade 4812

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 - -     0.11 -  
879 776 - 11.3 312   -  
397 - 41 41.2   132 221

Heat Treatment of steel grade 4812

Heat treated : 1592°C - 1181°C

Technological Curves of steel grade 4812

Cross Reference Table (Equivalent Grade) of 4812

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