Composition in % :
|
C |
Si |
Mn |
P |
S |
Cr |
Mo |
Ni |
|
0,80 - 0,90 |
0,15 - 0,35 |
0,45 - 0,65 |
max. 0,035 |
max. 0,035 |
|
|
|
Range of application and heat treatment :
|
Spring steel : precision springs
Hardening : 800 - 830 °C (oil) Soft
annealing : 680 - 710 °C |
General and distinctive features :
|