1.[ Steel 50CrMo4 1.7228 708M40 708M50 bar&rod]
Introduction:
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Standard:
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EN 10083-3: 2006 Steels for quenching and tempering. Technical delivery conditions for alloy steels
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EN 10250-3: 2000 Open steel die forgings for general engineering purposes. Alloy special steels
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Equivalent grades of steel 50CrMo4 (1.7228)
Warning! Only for reference
EU
EN
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Germany
DIN,WNr
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England
BS
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China
GB
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Inter
ISO
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50CrMo4
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2.[
Steel 50CrMo4 1.7228 708M40 708M50 bar&rod
]
Surface
:
mill finish (
n
ot polished)
brushed
mirror
embossed
oxidized
cold-rolled
hot-rolled
3.[Steel 50CrMo4 1.7228 708M40 708M50 bar&rod]
Chemistry:
Chemical composition % of steel 50CrMo4 (1.7228): EN 10083-3-2006
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C
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Si
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Mn
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P
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S
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Cr
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Mo
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0.46 - 0.54
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max 0.4
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0.5 - 0.8
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max 0.025
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max 0.035
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0.9 - 1.2
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0.15 - 0.3
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Mechanical properties of steel 50CrMo4 (1.7228)
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Nominal diameter (mm):
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to 16
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16 - 40
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40 - 100
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100 - 160
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160 - 250
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250 - 330
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330 - 500
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Rm
- Tensile strength (MPa) (+QT)
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1100-1300
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1000-1200
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900-1100
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850-1000
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750-950
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750
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700
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Nominal diameter(mm): or for flat products thickness: to 8; 8-20; 20-60; 60-100; 100-160;
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to 16
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16 - 40
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40 - 100
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100 - 160
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160 - 250
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Re
- Upper yield strength or
R
p0.2
- 0.2% proof strength (MPa) (+QT)
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900
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780
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700
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650
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550
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Nominal thickness(mm):
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to 160
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160 - 330
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330 - 500
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Re
- Upper yield strength (MPa) (+QT)
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550
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540
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490
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A
- Min. elongation at fracture (%) transverse, (+QT)
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9-11
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Nominal thickness (mm):
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to 16
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16 - 40
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40 - 100
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100 - 160
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160 - 250
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A
- Min. elongation Lo = 5,65 √ So (%) (+QT), round products
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9
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10
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12
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13
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13
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Nominal diameter (mm): or for flat products thickness: to 8; 8-20; 20-60; 60-100; 100-160;
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to 16
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16 - 40
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40 - 100
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100 - 160
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160 - 250
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Z
- Reduction in cross section on fracture (%) (+QT)
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40
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45
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50
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50
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50
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Brinell hardness (HBW): (+A)
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248
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