Quality20MnCr5
CategorySpecial steels
Standard ref.
EN 10084
Werkstoff nr.1.7147
Descrizione

It is an excellent case-hardening steel which combines the high hardness of the cement layer with an excellent core toughness. It is easily hot machinable and weldable. It can be supplied in rolled bars, peeled bars or drawn bars, in addition to forged bars. It is the most suitable among special steels for the manufacturing of mechanical elements such as medium size toothed wheels, joints and axles for the manufacturing of vehicles.

Chemical composition 20MnCr5 (%)
C
Mn
P
S
Cr
Si
min
max
min
max
max
max
min
max
max
0,17
0,22
1,10
1,40
0,035
0,035
1,00
1,30
0,40

Mechanical characteristics 20MnCr5

 
Hot-rolled with hardening core
(
Ø of the specimen in mm)
 
Ø 11
Ø 30
Ø 63
Yield Limit, Rp0,2 (MPa) min
930
690
540
Tensile Strength
R
m (MPa)
min
1230
930
780
max
1570
1230
1080
Elongation A (%) min
7
8
9
Resilience Kv (J) min
17,5
20
25
Hardness HBmin
363
278
232
max
438
363
327

Matches table 20MnCr5

Italiy (UNI)
Europe (EN)
Germany (DIN)
France (AFNOR)
United Kingdom (BS)
USA (AISI/SAE)
20MnCr5
20MnCr5
20MnCr5
20MC5