Czech Republic · CSN

1.0070

CSN EN 10025-2 — Hot-rolled products of non-alloy structural steels - Part 2: Technical delivery conditions for flat products

Chemical composition

wt% · log scale
0.0010.010.1N0.014P0.055S0.055
  • min – max range
  • typical value

Mechanical properties

value range by condition
Elongation A≥4 %Elongation A≥5 %long products and flats, 1.0 < t <= 1.5 mmElongation A≥5 %Elongation A≥6 %long products and flats, 1.5 < t <= 2.0 mmYield strength Rp0.2≥305 MPaTensile strength Rm650–830 MPaElongation A≥7 %Elongation A≥8 %long products and flats, 100.0 < t <= 150.0 mmYield strength Rp0.2≥295 MPalong products and flats, 150.0 < t <= 200.0 mm

Chemical composition

ElementminmaxSimilarRemarks
N0.014The max value for nitrogen does not apply if the chemical composition shows a minimum Al total=0
P0.055
S0.055For long products the max S content can be increased for improved machinability by 0

Mechanical properties

Heat treatment / conditionYield strengthTensile strengthElongationReduction of areaImpact energyHardness
long products and flats, 1.0 < t <= 1.5 mm≥4 Lo = 80 mm；≥5 Lo = 80 mm
long products and flats, 1.5 < t <= 2.0 mm≥5 Lo = 80 mm；≥6 Lo = 80 mm
long products and flats, 100.0 < t <= 150.0 mm≥305 is Upper Yield Stress (Reh)650–830≥7 Lo=5.65√So；≥8 Lo=5.65√So
long products and flats, 150.0 < t <= 200.0 mm≥295 is Upper Yield Stress (Reh)
long products and flats, 150.0 < t <= 250.0 mm640–830≥6 Lo=5.65√So；≥7 Lo=5.65√So
long products and flats, 16.0 < t <= 40.0 mm≥355 is Upper Yield Stress (Reh)
long products and flats, 2.0 < t <= 2.5 mm≥6 Lo = 80 mm；≥7 Lo = 80 mm
long products and flats, 2.5 < t <= 3.0 mm≥7 Lo = 80 mm；≥8 Lo = 80 mm
long products and flats, 200.0 < t <= 250.0 mm≥285 is Upper Yield Stress (Reh)
long products and flats, 3.0, < t <= 40.0 mm≥10 Lo=5.65√So；≥11 Lo=5.65√So
long products and flats, 3.0, <=, t <= 100.0 mm670–830
long products and flats, 40.0 < t <= 63.0 mm≥345 is Upper Yield Stress (Reh)≥9 Lo=5.65√So；≥10 Lo=5.65√So
long products and flats, 63.0 < t <= 100.0 mm≥8 Lo=5.65√So；≥9 Lo=5.65√So
long products and flats, 63.0 < t <= 80.0 mm≥335 is Upper Yield Stress (Reh)
long products and flats, 80.0 < t <= 100.0 mm≥325 is Upper Yield Stress (Reh)
long products and flats, t < 3.0 mm690–900
long products and flats, t <= 1.0 mm≥3 Lo = 80 mm；≥4 Lo = 80 mm
long products and flats, t <= 16.0 mm≥360 is Upper Yield Stress (Reh)