Bulgaria · BDS

1.8859

BDS EN 10225

Chemical composition

wt% · log scale
0.00010.0010.010.1110Al0.015 – 0.055As0.03B0.0005Bi0.01C0.14Ca0.005Cr0.25Cr+Ni+Cu+Mo0.8Cu0.3Mn1.65Mo0.08N0.012Nb0.05Nb+Ti+V0.11Nb+V0.09Ni0.7P0.02Pb0.01S0.007Sb0.01Si0.55Sn0.02Ti0.025V0.08
  • min – max range
  • typical value

Mechanical properties

value range by condition
Yield strength Rp0.2≥420 MPaTensile strength Rm500–690 MPaElongation A≥19 %Plates, rolled, <= 16 mmYield strength Rp0.2≥410 MPaTensile strength Rm500–690 MPaImpact energy Kv/Ku≥60 JElongation A≥19 %Plates, rolled, > 16 <= 40 mmYield strength Rp0.2≥400 MPaTensile strength Rm500–690 MPaImpact energy Kv/Ku≥60 JElongation A≥19 %Plates, rolled, > 40 <= 63 mm

Chemical composition

ElementminmaxSimilarRemarks
Al0.0150.055The total Al/N ratio shall be a minimum of 2:1. When other nitrogen binding elements are used
As0.03
B0.0005
Bi0.01
C0.14
Ca0.005
Cr0.25
Cr+Ni+Cu+Mo0.8
Cu0.3
Mn1.65
Mo0.08
N0.012
Nb0.05
Nb+Ti+V0.11
Nb+V0.09
Ni0.7
OtherAs rolled condition limited to a maximum thickness of 25 mm
P0.02
Pb0.01
S0.007
Sb0.01
Si0.55
Sn0.02
Ti0.025
V0.08

Mechanical properties

Heat treatment / conditionYield strengthTensile strengthElongationReduction of areaImpact energyHardness
Plates, rolled, <= 16 mm≥420 Yield strength is the upper yield strength500–690≥19
Plates, rolled, > 16 <= 40 mm≥410 Yield strength is the upper yield strength500–690≥19≥60 Charpy V Notch (-40°C); >= 25 mm
Plates, rolled, > 40 <= 63 mm≥400 Yield strength is the upper yield strength500–690≥19≥60 Charpy V Notch (-40°C)

High/low temperature

Impact energy Kv/Ku (J)
ConditionTemperature ℃minRemarks
Plates > 40 <= 63 mm-4060Charpy V Notch
Plates > 16 <= 40 mm-4060Charpy V Notch; >= 25 mm