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America ASME E6918M 手工电弧焊用低合金钢焊条标准 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: E6918M / E6918M
Category Grade Standard Region/Area Standard Content
Metals E6918M ASME SFA-5.5/SFA-5.5M America 手工电弧焊用低合金钢焊条标准

Chemical composition(mass fraction)(wt.%) of the E6918M

Element Min Max Similar
C - 0.1000 -
Mn 0.7500 1.7000 -
P - 0.0300 -
S - 0.0300 -
Si - 0.6000 -
Ni 1.4000 2.1000 -
Cr - 0.3500 -
Mo 0.2500 0.5000 -
V - 0.0500 -
Others Total - 0.5000 -

Mechanical Properties of steel grade E6918M

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)
241 (≥) 753 (≥) 11 21 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 444

Physical Properties of steel grade E6918M

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
43 - -     0.43 -  
541 373 - 21.3 123   -  
633 - 23 12.2   312 224

Heat Treatment of steel grade E6918M

Heat treated : 1258°C - 1199°C

Technological Curves of steel grade E6918M

Cross Reference Table (Equivalent Grade) of E6918M

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