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America AWS EC321 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: EC321 / EC321
Category Grade Standard Region/Area Standard Content
Metals EC321 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 EC321

Element Min Max Similar
Cu - 0.7500 -
S - 0.0300 -
P - 0.0300 -
Si 0.3000 0.6500 -
Mn 1.0000 2.5000 -
Ti 0.7200 1.0000 -
Mo - 0.7500 -
Ni 9.0000 10.5000 -
Cr 18.5000 20.5000 -
C - 0.0800 -

Mechanical Properties of steel grade EC321

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)
221 (≥) 513 (≥) 12 12 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 344

Physical Properties of steel grade EC321

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 - -     0.23 -  
566 883 - 21.3 412   -  
817 - 43 24.2   433 121

Heat Treatment of steel grade EC321

Heat treated : 1983°C - 1651°C

Technological Curves of steel grade EC321

Cross Reference Table (Equivalent Grade) of EC321

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