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Germany DIN St34-2 Welded precision steel tubes - Part 2: Technical delivery conditions and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: St34-2 / St 34-2
Category Grade Standard Region/Area Standard Content
Metals St 34-2 DIN 2393-2 Germany Welded precision steel tubes - Part 2: Technical delivery conditions

Chemical composition(mass fraction)(wt.%) of the St 34-2

Element Min Max Similar
Si - - -
S - 0.0500 -
P - 0.0500 -
Mn - - -
C - 0.1700 -
S - 0.0500 -
P - 0.0500 -
C - 0.1700 -

Mechanical Properties of steel grade St 34-2

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)
698 (≥) 626 (≥) 31 34 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 222

Physical Properties of steel grade St 34-2

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 -  
464 544 - 41.3 244   -  
431 - 44 12.2   212 421

Heat Treatment of steel grade St 34-2

Heat treated : 1956°C - 1772°C

Technological Curves of steel grade St 34-2

Cross Reference Table (Equivalent Grade) of St 34-2

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