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China 首钢Q/SG ER55-G 焊丝用钢盘条 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: ER55-G / ER55-G
Category Grade Standard Region/Area Standard Content
Metals ER55-G Q/SGZGS 0294 China 焊丝用钢盘条

Chemical composition(mass fraction)(wt.%) of the ER55-G

Element Min Max Similar
C - 0.1000 -
Si - 0.6000 -
Mn 1.2000 1.6000 -
P - 0.0250 -
S - 0.0200 -
Cr 0.3000 0.9000 -
Ni 0.2000 0.6000 -
Cu 0.1500 0.3500 -

Mechanical Properties of steel grade ER55-G

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)
892 (≥) 836 (≥) 43 43 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 234

Physical Properties of steel grade ER55-G

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
42 - -     0.14 -  
573 357 - 23.3 333   -  
416 - 33 12.2   313 133

Heat Treatment of steel grade ER55-G

Heat treated : 1257°C - 1156°C

Technological Curves of steel grade ER55-G

Cross Reference Table (Equivalent Grade) of ER55-G

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