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Australia AS EM12K Electrodes and fluxes for submerged-arc welding - Low and intermediate alloy steels and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: EM12K / EM12K
Category Grade Standard Region/Area Standard Content
Metals EM12K AS/NZS 1858.2 Australia Electrodes and fluxes for submerged-arc welding - Low and intermediate alloy steels

Chemical composition(mass fraction)(wt.%) of the EM12K

Element Min Max Similar
Si 0.1000 0.3500 -
S - 0.0300 -
P - 0.0300 -
Mn 0.8000 1.2500 -
Cu - 0.3500 -
C 0.0500 0.1500 -

Mechanical Properties of steel grade EM12K

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)
918 (≥) 242 (≥) 41 12 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 131

Physical Properties of steel grade EM12K

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 - -     0.22 -  
736 928 - 31.3 111   -  
975 - 33 31.2   233 241

Heat Treatment of steel grade EM12K

Heat treated : 1396°C - 1618°C

Technological Curves of steel grade EM12K

Cross Reference Table (Equivalent Grade) of EM12K

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