QualityC45C45E – C45R
CategorySpecial steel, carbon steelSpecial steel, carbon steel
Standard ref.
EN 10083EN 10083
Werkstoff nr.1.11911.1201

Description

Among the hardening and tempering special steels, C40E and C40R are the most commonly used steels in Italy, and used to produce a vast range of mechanical components: axles, shafts, gears, pins, flanges etc. They are normally supplied as rolled bars and forged bars, though it is not uncommon to find these special steels supplied as drawn bars and peeled bars.

Chemical composition C45E (%)

C Mn P S Cr Si Mo Ni Cr+Ni+Mo
minmaxminmaxminmaxmaxmaxmaxmaxmaxmax
0,420,500,500,800,0300,0350,400,400,100,400,63

Chemical composition C45R (%)

C Mn P S Cr Si Mo Ni Cr+Ni+Mo
minmaxminmaxminmaxmaxmaxmaxmaxmaxmax
0,420,500,500,800,0200,0400,0350,400,400,100,400,63

Mechanical characteristics C45E e C45R

Hot rolled normalized
of the specimen in mm)
≤ 16> 16 ≤ 100> 100 ≤ 250
Yield Limit, Rp0,2 (MPa) min340305275
Tensile Strength
R
m (MPa)
min620580560
max785770760
Elongation A (%) min141616
Resilience Kv (J) min282018
Hardness HBmin185175165
max245235230

Matches table C45E e C45R

Italiy (UNI)
Europe (EN)
Germany (DIN)
France (AFNOR)
United Kingdom (BS)
USA (AISI/SAE)
C45C45E – C45RCk45 – Cm45XC48H1 – XC48H1u080M461045