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America ASME ERCu Specification for copper and copper-alloy bare welding rods and electrodes and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: ERCu / ERCu
Category Grade Standard Region/Area Standard Content
Metals ERCu ASME SFA-5.7/SFA-5.7M America Specification for copper and copper-alloy bare welding rods and electrodes

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

Element Min Max Similar
Mn - 0.5000 -
P - 0.1500 -
Si - 0.5000 -
Cu 98.0000 - -
Al - 0.0100 -
Sn - 1.0000 -
Pb - 0.0200 -
Others total - 0.5000 -

Mechanical Properties of steel grade ERCu

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)
445 (≥) 823 (≥) 31 44 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 213

Physical Properties of steel grade ERCu

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
32 - -     0.31 -  
396 314 - 43.3 223   -  
892 - 24 42.2   133 412

Heat Treatment of steel grade ERCu

Heat treated : 1342°C - 1829°C

Technological Curves of steel grade ERCu

Cross Reference Table (Equivalent Grade) of ERCu

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