Sweden · SS

1.1180

SS EN 10343

Chemical composition

wt% · log scale
0.010.1110C0.32 – 0.39Cr0.1Cr+Mo+Ni0.63Mn0.5 – 0.8Mo0.4Ni0.4P0.03S0.02 – 0.04Si0.4
  • min – max range
  • typical value

Mechanical properties

value range by condition
Yield strength Rp0.2≥245 MPaTensile strength Rm≥500 MPaImpact energy Kv/Ku≥20 JElongation A≥19 %bars, flats, forgings, heavy plate; 100 < d/t, ≤ 250mm +NYield strength Rp0.2≥270 MPaTensile strength Rm≥520 MPaImpact energy Kv/Ku≥20 JElongation A≥19 %bars, flats, forgings, heavy plate; 16 < d/t, ≤ 100mm +NYield strength Rp0.2≥430 MPaTensile strength Rm630–780 MPaElongation A≥17 %bars, flats, forgings, heavy plate; d ≤ 16mm; t ≤ 8mm +QTYield strength Rp0.2≥300 MPaTensile strength Rm≥550 MPaElongation A≥18 %bars, flats, forgings, heavy plate; d/t, ≤ 16mm +N

Chemical composition

ElementminmaxSimilarRemarks
C0.320.39
Cr0.1
Cr+Mo+Ni0.63
Mn0.50.8
Mo0.4
Ni0.4
P0.03
S0.020.04
Si0.4

Mechanical properties

Heat treatment / conditionYield strengthTensile strengthElongationReduction of areaImpact energyHardness
bars, flats, forgings, heavy plate; 100 < d/t, ≤ 250mm +N≥245≥500≥19≥20 KV(20℃)
bars, flats, forgings, heavy plate; 16 < d/t, ≤ 100mm +N≥270≥520≥19≥20 KV(20℃)
bars, flats, forgings, heavy plate; d ≤ 16mm; t ≤ 8mm +QT≥430630–780≥17
bars, flats, forgings, heavy plate; d/t, ≤ 16mm +N≥300≥550≥18
bars, flats, forgings, heavy plate;16 < d ≤ 40mm;8 < t ≤ 20 mm +QT≥380600–750≥19≥35 KV(20℃)
bars, flats, forgings, heavy plate;40 < d ≤ 100mm;20 < t ≤ 60 mm +QT≥320550–700≥20≥35 KV(20℃)