Global · Enterprise standard

R 2

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Chemical composition

wt% · log scale
0.010.11C0.2Mn0.5S0.03Si0.25
  • min – max range
  • typical value

Mechanical properties

value range by condition
Yield strength Rp0.2≥210 MPaTensile strength Rm≥410 MPaElongation A≥25 %steel tubes +N, 16 mm < d <= 100 mmYield strength Rp0.2≥240 MPaTensile strength Rm≥430 MPaElongation A≥24 %steel tubes +N, d < 16 mmYield strength Rp0.2≥290 MPaTensile strength Rm470–620 MPaImpact energy Kv/Ku≥50 JElongation A≥22 %Reduction of area Z≥50 %steel tubes +QT, 16 mm < d <= 40 mmYield strength Rp0.2≥340 MPaTensile strength Rm500–650 MPaImpact energy Kv/Ku≥50 JElongation A≥20 %Reduction of area Z≥50 %steel tubes +QT, d < 16 mm

Chemical composition

ElementminmaxSimilarRemarks
C0.2
Mn0.5
PbAs optional may be added.
S0.03
Si0.25

Mechanical properties

Heat treatment / conditionYield strengthTensile strengthElongationReduction of areaImpact energyHardness
steel tubes +N, 16 mm < d <= 100 mm≥210≥410≥25 Lo = 5 mm;
steel tubes +N, d < 16 mm≥240≥430≥24 Lo = 5 mm;
steel tubes +QT, 16 mm < d <= 40 mm≥290470–620≥22 Lo = 5 mm;≥50≥50
steel tubes +QT, d < 16 mm≥340500–650≥20 Lo = 5 mm;≥50≥50