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EN
42CrMo4
DIN
42CrMo4
SAE / AISI / ASTM
4140
BS
708M40
AFNOR
42CD4
Equivalent Steel Grades
Material No
1.7225
Chemical Composition (%)
EN 10083-2
C
Si
Mn
P
S
Cr
Ni
Mo
N
Pb
Min
0.38
0.60
0.90
0.15
Max
0.45
0.40
0.90
0.025
0.035
1.20
0.30
390
250 < t ≤ 330
460
160 < t ≤ 250
500
100 < t ≤ 60
650
40 < t ≤ 100
750
16 < t ≤ 40
Min
Thickness (mm)
Diameter (mm)
YIELD STRENGTH (Re) (N/mm² = MPa)
Condition of the Sample: QT
Mechanical Properties
700
250 < t ≤ 330
950
800
160 < t ≤ 250
1100
900
100 < t ≤ 60
1200
1000
40 < t ≤ 100
1300
1100
16 < t ≤ 40
Max
Min
Thickness (mm)
Diameter (mm)
TENSILE STRENGTH (Rm) (N/mm² = MPa)
Min
Thickness (mm)
Diameter (mm)
ELONGATION (%)
11
16 < t ≤ 40
12
40 < t ≤ 100
13
100 < t ≤ 60
14
160 < t ≤ 250
HARDNESS (HB)
+AR
+N
+A
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