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Germany DIN KSt52-3 Welded cold formed square and rectangular steel tubes (hollow sections) for structural steelwork; technical delivery conditions and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: KSt52-3 / KSt 52-3
Category Grade Standard Region/Area Standard Content
Metals KSt 52-3 DIN 17119 Germany Welded cold formed square and rectangular steel tubes (hollow sections) for structural steelwork; technical delivery conditions

Chemical composition(mass fraction)(wt.%) of the KSt 52-3

Element Min Max Similar

Mechanical Properties of steel grade KSt 52-3

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)
144 (≥) 428 (≥) 21 41 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 432

Physical Properties of steel grade KSt 52-3

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
21 - -     0.13 -  
387 887 - 22.3 241   -  
723 - 21 44.2   412 422

Heat Treatment of steel grade KSt 52-3

Heat treated : 1265°C - 1479°C

Technological Curves of steel grade KSt 52-3

Cross Reference Table (Equivalent Grade) of KSt 52-3

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