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America AWS EC218 Specification for stainless steel flux cored and metal cored welding electrodes and rods 4th edition and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: EC218 / EC218
Category Grade Standard Region/Area Standard Content
Metals EC218 AWS A5.22/A5.22M America Specification for stainless steel flux cored and metal cored welding electrodes and rods 4th edition

Chemical composition(mass fraction)(wt.%) of the EC218

Element Min Max Similar
Cu - 0.7500 -
N 0.0800 0.1800 -
S - 0.0300 -
P - 0.0300 -
Si 3.5000 4.5000 -
Mn 7.0000 9.0000 -
Mo - 0.7500 -
Ni 8.0000 9.0000 -
Cr 16.0000 18.0000 -
C - 0.1000 -

Mechanical Properties of steel grade EC218

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)
631 (≥) 867 (≥) 43 12 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 124

Physical Properties of steel grade EC218

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 - -     0.34 -  
988 985 - 42.3 341   -  
113 - 23 21.2   144 212

Heat Treatment of steel grade EC218

Heat treated : 1893°C - 1192°C

Technological Curves of steel grade EC218

Cross Reference Table (Equivalent Grade) of EC218

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