Sweden · SS

1.5680

SS EN 10222-3

Chemical composition

wt% · log scale
0.0010.010.1110C0.15Cr0.3Cr+Cu+Mo0.5Cu0.3Mn0.3 – 0.8Mo0.08Ni4.75 – 5.25P0.02S0.01Si0.35V0.05
  • min – max range
  • typical value

Mechanical properties

value range by condition
Yield strength Rp0.2≥380 MPaYield strength Rp0.2≥390 MPaTensile strength Rm510–710 MPaTensile strength Rm510–710 MPaImpact energy Kv/Ku≥50 JImpact energy Kv/Ku≥70 JElongation A≥19 %Elongation A≥19 %forgings;35 < t ≤ 50 mm +NYield strength Rp0.2≥380 MPaYield strength Rp0.2≥390 MPaTensile strength Rm510–710 MPaTensile strength Rm510–710 MPaImpact energy Kv/Ku≥50 JImpact energy Kv/Ku≥70 JElongation A≥19 %Elongation A≥19 %forgings;35 < t ≤ 50 mm +NTYield strength Rp0.2≥380 MPaYield strength Rp0.2≥390 MPaTensile strength Rm510–710 MPaTensile strength Rm510–710 MPaImpact energy Kv/Ku≥50 JImpact energy Kv/Ku≥70 JElongation A≥19 %Elongation A≥19 %forgings;35 < t ≤ 50 mm +QTImpact energy Kv/Ku≥27 JImpact energy Kv/Ku≥40 JImpact energy Kv/Ku≥30 JImpact energy Kv/Ku≥50 JImpact energy Kv/Ku≥40 JImpact energy Kv/Ku≥60 JImpact energy Kv/Ku≥45 JImpact energy Kv/Ku≥65 JImpact energy Kv/Ku≥50 JImpact energy Kv/Ku≥70 Jforgings;5 < t ≤ 70 mm +N

High / low temperature

value vs. temperature
21.835.248.561.875.2-120-120-100-100-80-80-40-4000°C
  • forgings normalized +N > 5 <= 70 mm · Impact energy Kv/Ku

Chemical composition

ElementminmaxSimilarRemarks
C0.15
Cr0.3
Cr+Cu+Mo0.5
Cu0.3
Mn0.30.8
Mo0.08
Ni4.755.25
P0.02
S0.01
Si0.35
V0.05

Mechanical properties

Heat treatment / conditionYield strengthTensile strengthElongationReduction of areaImpact energyHardness
forgings;35 < t ≤ 50 mm +N≥380 Yield strength is the upper yield strength; transverse；≥390 Yield strength is the upper yield strength; longitudinal510–710 Transverse；510–710 Longitudinal≥19 Transverse；≥19 Longitudinal≥50 Charpy V Notch (+20°C); 5 - 50 mm; transverse；≥70 Charpy V Notch (+20°C); 5 - 50 mm; longitudinal
forgings;35 < t ≤ 50 mm +NT≥380 Yield strength is the upper yield strength; transverse；≥390 Yield strength is the upper yield strength; longitudinal510–710 Transverse；510–710 Longitudinal≥19 Transverse；≥19 Longitudinal≥50 Charpy V Notch (+20°C); 5 - 50 mm; transverse；≥70 Charpy V Notch (+20°C); 5 - 50 mm; longitudinal
forgings;35 < t ≤ 50 mm +QT≥380 Yield strength is the upper yield strength; transverse；≥390 Yield strength is the upper yield strength; longitudinal510–710 Transverse；510–710 Longitudinal≥19 Transverse；≥19 Longitudinal≥50 Charpy V Notch (+20°C); 5 - 50 mm; transverse；≥70 Charpy V Notch (+20°C); 5 - 50 mm; longitudinal
forgings;5 < t ≤ 70 mm +N≥27 Charpy V-notch (-120°C)；≥40 Charpy V-notch (-120°C)；≥30 Charpy V-notch (-100°C)；≥50 Charpy V-notch (-100°C)；≥40 Charpy V-notch (-80°C)；≥60 Charpy V-notch (-80°C)；≥45 Charpy V-notch (-40°C；≥65 Charpy V-notch (-40°C；≥50 Charpy V-notch (0°C；≥70 Charpy V-notch (0°C
forgings;t ≤ 35 mm +N≥380 Yield strength is the upper yield strength; transverse；≥390 Yield strength is the upper yield strength; longitudinal510–710 Transverse；510–710 Longitudinal≥19 Transverse；≥19 Longitudinal≥50 Charpy V Notch (+20°C); 5 - 50 mm; transverse；≥70 Charpy V Notch (+20°C); 5 - 50 mm; longitudinal
forgings;t ≤ 35 mm +NT≥380 Yield strength is the upper yield strength; transverse；≥390 Yield strength is the upper yield strength; longitudinal510–710 Transverse；510–710 Longitudinal≥19 Transverse；≥19 Longitudinal≥50 Charpy V Notch (+20°C); 5 - 50 mm; transverse；≥70 Charpy V Notch (+20°C); 5 - 50 mm; longitudinal
forgings;t ≤ 35 mm +QT≥380 Yield strength is the upper yield strength; transverse；≥390 Yield strength is the upper yield strength; longitudinal510–710 Transverse；510–710 Longitudinal≥19 Transverse；≥19 Longitudinal≥50 Charpy V Notch (+20°C); 5 - 50 mm; transverse；≥70 Charpy V Notch (+20°C); 5 - 50 mm; longitudinal

High/low temperature

Impact energy Kv/Ku (J)
ConditionTemperature ℃minRemarks
forgings normalized +N > 5 <= 70 mm-12027Charpy V-notch
forgings normalized +N > 5 <= 70 mm-10030Charpy V-notch
forgings normalized +N > 5 <= 70 mm-8040Charpy V-notch
forgings normalized +N > 5 <= 70 mm-4045Charpy V-notch (-40°C
forgings normalized +N > 5 <= 70 mm050Charpy V-notch (0°C
forgings normalized +N > 5 <= 70 mm070Charpy V-notch (0°C
forgings normalized +N > 5 <= 70 mm-4065Charpy V-notch (-40°C
forgings normalized +N > 5 <= 70 mm-8060Charpy V-notch
forgings normalized +N > 5 <= 70 mm-10050Charpy V-notch
forgings normalized +N > 5 <= 70 mm-12040Charpy V-notch

Heat treatment

Type1
Heat-treatment curveCCT
Heat-treatment curveTTT