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S420G2 + QT

EU EN S420G2+QT 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: S420G2+QT / S420G2 + QT
Category Grade Standard Region/Area Standard Content
Metals S420G2 + QT 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 S420G2 + QT

Element Min Max Similar

Mechanical Properties of steel grade S420G2 + QT

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 (≥) 577 (≥) 14 14 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 231

Physical Properties of steel grade S420G2 + QT

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 - -     0.31 -  
782 535 - 13.3 321   -  
588 - 31 43.2   433 112

Heat Treatment of steel grade S420G2 + QT

Heat treated : 1741°C - 1664°C

Technological Curves of steel grade S420G2 + QT

Cross Reference Table (Equivalent Grade) of S420G2 + QT

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