Quality 39NiCrMo3
Category Acciai speciali,
Acciai da bonifica
Standard ref.
EN 10083
Werkstoff nr. 1.6510



 
Description

This is the most renowned and used special hardening and tempering steels in Italy. It has great toughness, deformability and good hardenability properties. It is normally supplied in rolled bars and forged bars. It is used in the realisation of components subjected to dynamical stress, such as axles, shafts and gears.


Chemical composition 39NiCrMo3 (%)
C
Mn
P
S
Cr
Si
Mo
Ni
min
max
min
max
max
max
min
max
max
min
max
min
max
0,35
0,43
0,50
0,80
0,025
0,035
0,60
1,00
0,40
0,15
0,25
0,70
1,00


Mechanical characteristics 39NiCrMo3
 
Hot rolled normalized
of the specimen in mm)
 
≤ 16
> 16 ≤ 40
> 40 ≤ 100
> 100 ≤ 160
> 160 ≤ 250
Yield Limit, Rp0,2 (MPa) min
785
735
685
635
540
Tensile Strength
R
m (MPa)
min
980
930
880
830
740
max
1180
1130
1080
980
880
Elongation A (%) min
11
11
12
12
13
Resilience Kv (J) min
-
35
40
40
40
Hardness HB min
-
-
-
-
-
max
-
-
-
-
-


Matches table
Italiy (UNI)
Europe (EN)
Germany (DIN)
France (AFNOR)
United Kingdom (BS)
USA (AISI/SAE)
39NiCrMo3 39NiCrMo3 36CrNiMo4 40NCD3 - 9840

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