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America SAE 46B12 Former SAE Standard and Former SAE Ex-Steels and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 46B12 / 46B12
Category Grade Standard Region/Area Standard Content
Metals 46B12 SAE J 1249 America Former SAE Standard and Former SAE Ex-Steels

Chemical composition(mass fraction)(wt.%) of the 46B12

Element Min Max Similar
Si 0.2000 0.3500 -
S - 0.0400 -
P - 0.0400 -
Ni 1.6500 2.0000 -
Mo 0.2000 0.3000 -
Mn 0.4500 0.6500 -
C 0.1000 0.1500 -
B 0.0005 0.0030 -

Mechanical Properties of steel grade 46B12

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)
188 (≥) 457 (≥) 34 24 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 211

Physical Properties of steel grade 46B12

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
34 - -     0.34 -  
449 851 - 44.3 231   -  
651 - 21 33.2   231 111

Heat Treatment of steel grade 46B12

Heat treated : 1591°C - 1463°C

Technological Curves of steel grade 46B12

Cross Reference Table (Equivalent Grade) of 46B12

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