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EN
C40
DIN
Ck40
SAE / AISI / ASTM
1040
BS
080M40
AFNOR
XC38
Equivalent Steel Grades
Material No
1.0511
Chemical Composition (%)
EN 10083-2
C
Si
Mn
P
S
Cr
Ni
Mo
N
Pb
Min
0.37
0.50
Max
0.44
0.40
0.80
0.045
0.045
0.40
0.40
0.10
290
100 < t ≤ 250
330
100 < t ≤ 250
365
100 < t ≤ 250
460
100 < t ≤ 250
540
t ≤ 100
Min
Thickness (mm)
Diameter (mm)
YIELD STRENGTH (Re) (N/mm² = MPa)
Condition of the Sample: +C
Mechanical Properties
820
550
100 < t ≤ 250
840
590
100 < t ≤ 250
920
620
100 < t ≤ 250
98
650
100 < t ≤ 250
1000
700
t ≤ 100
Max
Min
Thickness (mm)
Diameter (mm)
TENSILE STRENGTH (Rm) (N/mm² = MPa)
Min
Thickness (mm)
Diameter (mm)
ELONGATION (%)
6
t ≤ 100
7
100 < t ≤ 250
8
100 < t ≤ 250
9
100 < t ≤ 250
9
100 < t ≤ 250
HARDNESS (HB)
+AR
+N
+A
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