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Poland PN St3SCuJ Structural unalloyed steel for general purposes- Grades and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: St3SCuJ / St3SCu J
Category Grade Standard Region/Area Standard Content
Metals St3SCu J PN H84020 Poland Structural unalloyed steel for general purposes- Grades

Chemical composition(mass fraction)(wt.%) of the St3SCu J

Element Min Max Similar
C - 0.2200 -
Mn - 1.1000 -
P - 0.0500 -
S - 0.0500 -
Si 0.1000 0.3500 -
Ni - 0.3000 -
Cr - 0.3000 -
Cu - 0.3000 -
Al 0.0200 - -
N - 0.0080 -
As - 0.0800 -
C - 0.2200 -
Mn - 1.1000 -
P - 0.0500 -
S - 0.0500 -
Si 0.1000 0.3500 -
Ni - 0.3000 -
Cr - 0.3000 -
Cu - 0.3000 -
Al 0.0200 - -
N - 0.0080 -
As - 0.0800 -

Mechanical Properties of steel grade St3SCu J

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)
811 (≥) 983 (≥) 43 44 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 241

Physical Properties of steel grade St3SCu J

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
44 - -     0.33 -  
656 178 - 13.3 413   -  
993 - 11 34.2   421 313

Heat Treatment of steel grade St3SCu J

Heat treated : 1985°C - 1349°C

Technological Curves of steel grade St3SCu J

Cross Reference Table (Equivalent Grade) of St3SCu J

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