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EN
20NiCrMo2-2
DIN
21NiCrMo2
SAE / AISI / ASTM
8620
BS
805M20
AFNOR
20NCD2
Equivalent Steel Grades
Material No
1.6523
Chemical Composition (%)
EN 10084: 2008
C
Si
Mn
P
S
Cr
Ni
Mo
Cu
Al
Min
0.17
0.15
0.65
0.35
0.40
0.15
0.020
Max
0.23
0.40
0.95
0.025
0.035
0.70
0.70
0.25
0.40
0.050
390
40 < t ≤ 100
16 < t ≤ 40
t ≤ 16
Min
Thickness (mm)
Diameter (mm)
YIELD STRENGTH (Re) (N/mm² = MPa)
Condition of the Sample: QT
Mechanical Properties
850
40 < t ≤ 100
16 < t ≤ 40
t ≤ 16
Max
Min
Thickness (mm)
Diameter (mm)
TENSILE STRENGTH (Rm) (N/mm² = MPa)
Min
Thickness (mm)
Diameter (mm)
ELONGATION (%)
t ≤ 16
16 < t ≤ 40
40 < t ≤ 100
HARDNESS (HB)
+AR
+N
+A
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