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America ASME EM12 埋弧焊用碳钢焊丝和焊剂标准 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: EM12 / EM12
Category Grade Standard Region/Area Standard Content
Metals EM12 ASME SFA-5.17/SFA-5.17M America 埋弧焊用碳钢焊丝和焊剂标准

Chemical composition(mass fraction)(wt.%) of the EM12

Element Min Max Similar
C 0.0600 0.1500 -
Mn 0.8000 1.2500 -
P - 0.0300 -
S - 0.0300 -
Si - 0.1000 -
Cu - 0.3500 -
B - - -
Others Total - 0.5000 -

Mechanical Properties of steel grade EM12

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)
794 (≥) 635 (≥) 13 12 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 334

Physical Properties of steel grade EM12

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
33 - -     0.33 -  
871 994 - 13.3 213   -  
227 - 24 41.2   331 412

Heat Treatment of steel grade EM12

Heat treated : 1392°C - 1311°C

Technological Curves of steel grade EM12

Cross Reference Table (Equivalent Grade) of EM12

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