Finland · SFS

1.1149

SFS EN 10083-1

Chemical composition

wt% · log scale
0.010.1110C0.17 – 0.24Cr0.4Cr+Mo+Ni0.63Mn0.4 – 0.7Mo0.1Ni0.4P0.035S0.02 – 0.04Si0.4
  • min – max range
  • typical value

Mechanical properties

value range by condition
Yield strength Rp0.2210.00Tensile strength Rm410.00Elongation A25.00bars, open die forgings and die forgings +N, 16 mm < d <= 100 mm, flatsYield strength Rp0.2240.00Tensile strength Rm430.00Elongation A24.00bars, open die forgings and die forgings +N, d <= 16 mm or t <= 16 mm, flatsYield strength Rp0.2T - thickness)Tensile strength RmT - thickness)Impact energy Kv/KuT - thickness)Elongation AT - thickness)Reduction of area ZT - thickness)bars, open die forgings and die forgings +QT, 16 < d +MM < 40 or 8 < t +MM <= 20Yield strength Rp0.2T - thickness)Tensile strength RmT - thickness)Impact energy Kv/KuT - thickness)Elongation AT - thickness)Reduction of area ZT - thickness)bars, open die forgings and die forgings +QT, d <= 16 mm or t <= 8 mm

Chemical composition

ElementminmaxSimilarRemarks
C0.170.24
Cr0.4
Cr+Mo+Ni0.63If steels are ordered without mechanical requirements in the quenched and tempered or normalized condition
Mn0.40.7
Mo0.1
Ni0.4
P0.035
S0.020.04Steels with improved machinability as a result of the addition of lead or higher sulphur contents up to around 0
Si0.4

Mechanical properties

Heat treatment / conditionYield strengthTensile strengthElongationReduction of areaImpact energyHardness
bars, open die forgings and die forgings +N, 16 mm < d <= 100 mm, flats210.00410.0025.00
bars, open die forgings and die forgings +N, d <= 16 mm or t <= 16 mm, flats240.00430.0024.00
bars, open die forgings and die forgings +QT, 16 < d +MM < 40 or 8 < t +MM <= 20T - thickness)T - thickness)T - thickness)T - thickness)T - thickness)
bars, open die forgings and die forgings +QT, d <= 16 mm or t <= 8 mmT - thickness)T - thickness)T - thickness)T - thickness)T - thickness)

Heat treatment

Type1
Heat-treatment curveHardness-Tempering