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  4. ČSN 11 523 / 1.0570 / ST52.3

ČSN 11 523 / 1.0570 / ST52.3

  • Legirana in nelegirana jekla
0 CZK

Characteristics

Unalloyed structural fine-grained steel appropriate for welding.

Suitability

Bridge and other welded constructions, bent profiles, welded constructions from hollow profiles and parts of machines, cars, motorcycles and bicycles. Parts of thermal energy facilities and parts of pressure containers made from bars.

Chemical composition of steel W. Nr. 1.0570

Steel gradeChemical composition in %    Hardness in the state
soft-annealedheat-treated
CMnSiCrWMoVNi maxCoP max.S max.HB max.HRC min.
1.0570max 0,20max 1,60max 0,55      0,0400,045  

Heat treatment of steel W. Nr. 1.0570

WayTemperature [°C]Procedure
Normaliziation870-900Cool in air, big cross-sections faster
Soft annealing680-710Cool slowly
Tempering670-700Cool in air
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