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St 70-2 G

Germany DIN St70-2G Steel flat products; cold reduced sheet and strip; technical delivery conditions; general purpose structural steels and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: St70-2G / St 70-2 G
Category Grade Standard Region/Area Standard Content
Metals St 70-2 G DIN 1623-2 Germany Steel flat products; cold reduced sheet and strip; technical delivery conditions; general purpose structural steels

Chemical composition(mass fraction)(wt.%) of the St 70-2 G

Element Min Max Similar
S - 0.0500 -
P - 0.0500 -
N - 0.0090 -
C - 0.6500 -

Mechanical Properties of steel grade St 70-2 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)
584 (≥) 553 (≥) 32 33 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 243

Physical Properties of steel grade St 70-2 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
24 - -     0.13 -  
428 756 - 31.3 223   -  
391 - 31 41.2   313 134

Heat Treatment of steel grade St 70-2 G

Heat treated : 1846°C - 1571°C

Technological Curves of steel grade St 70-2 G

Cross Reference Table (Equivalent Grade) of St 70-2 G

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