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Germany DIN St12 Steel flat products; Cold rolled sheet and strip; Technical delivery conditions; Mild unalloyed steels for cold forming and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: St12 / St 12
Category Grade Standard Region/Area Standard Content
Metals St 12 DIN 1623-1 Germany Steel flat products; Cold rolled sheet and strip; Technical delivery conditions; Mild unalloyed steels for cold forming

Chemical composition(mass fraction)(wt.%) of the St 12

Element Min Max Similar

Mechanical Properties of steel grade St 12

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)
812 (≥) 924 (≥) 42 13 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 422

Physical Properties of steel grade St 12

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 - -     0.43 -  
638 238 - 23.3 132   -  
284 - 31 33.2   144 413

Heat Treatment of steel grade St 12

Heat treated : 1875°C - 1139°C

Technological Curves of steel grade St 12

Cross Reference Table (Equivalent Grade) of St 12

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