Composition in % :
|
C |
Si |
Mn |
P |
S |
Cr |
Mo |
Ni |
|
0,68 - 0,75 |
0,15 - 0,35 |
0,20 - 0,35 |
max. 0,025 |
max. 0,035 |
|
|
|
|
V |
W |
Ti |
Cu |
Al |
Nb |
B |
N |
|
|
|
|
|
|
|
|
max. 0,007 |
Range of application and heat treatment :
|
Heat treatable steel for surface hardening : worm gearing
, piston bolts , camshafts , lathe spindles
Hardening : 790 - 820 °C (water) Soft
annealing : 650 - 700 °C Normalising
: 820 - 850 °C
|
General and distinctive features :
|