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Germany DIN St65.29 Seamless circular unalloyed steel tubes subject to special requirements; technical delivery conditions and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: St65.29 / St 65.29
Category Grade Standard Region/Area Standard Content
Metals St 65.29 DIN 1629 Germany Seamless circular unalloyed steel tubes subject to special requirements; technical delivery conditions

Chemical composition(mass fraction)(wt.%) of the St 65.29

Element Min Max Similar

Mechanical Properties of steel grade St 65.29

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)
725 (≥) 357 (≥) 23 44 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 423

Physical Properties of steel grade St 65.29

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
23 - -     0.44 -  
726 197 - 13.3 444   -  
532 - 12 34.2   313 414

Heat Treatment of steel grade St 65.29

Heat treated : 1946°C - 1683°C

Technological Curves of steel grade St 65.29

Cross Reference Table (Equivalent Grade) of St 65.29

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