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S 420 G 4

EU EN S420G4 固定近海结构的可焊接结构钢 - 交货技术条件 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: S420G4 / S 420 G 4
Category Grade Standard Region/Area Standard Content
Metals S 420 G 4 EN 10225 EU 固定近海结构的可焊接结构钢 - 交货技术条件

Chemical composition(mass fraction)(wt.%) of the S 420 G 4

Element Min Max Similar
V - 0.0800 -
Ti - 0.0250 -
Sn - 0.0200 -
Si - 0.5500 -
Sb - 0.0100 -
S - 0.0070 -
Pb - 0.0100 -
P - 0.0200 -
Other - - -
Ni - 0.7000 -
Nb+V - 0.0900 -
Nb+Ti+V - 0.1100 -
Nb - 0.0500 -
N - 0.0120 -
Mo - 0.0800 -
Mn - 1.6500 -
Cu - 0.3000 -
Cr+Ni+Cu+Mo - 0.8000 -
Cr - 0.2500 -
Ca - 0.0050 -
C - 0.1400 -
Bi - 0.0100 -
B - 0.0005 -
As - 0.0300 -
Al 0.0150 0.0550 -

Mechanical Properties of steel grade S 420 G 4

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)
642 (≥) 313 (≥) 44 31 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 231

Physical Properties of steel grade S 420 G 4

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
31 - -     0.33 -  
751 319 - 24.3 433   -  
871 - 11 22.2   222 331

Heat Treatment of steel grade S 420 G 4

Heat treated : 1147°C - 1714°C

Technological Curves of steel grade S 420 G 4

Cross Reference Table (Equivalent Grade) of S 420 G 4

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