Composition in % :
|
C |
Si |
Mn |
P |
S |
Cr |
Mo |
Ni |
|
1,20 - 1,35 |
max. 0,45 |
max. 0,40 |
max. 0,030 |
max. 0,030 |
3,80 - 4,50 |
3,20 - 3,90 |
|
|
V |
W |
Co |
Cu |
Al |
Nb |
B |
N |
|
3,00 - 3,50 |
9,00 - 10,00 |
9,50 - 10,50 |
|
|
|
|
|
Range of application and heat treatment :
|
High-speed steel : turning tools , cutting tools , tools
for high cutting speed
Hardening : 1210 - 1250 °C (oil or air) Tempering
: 550 - 570 °C Soft
annealing : 800 - 830 °C |
General and distinctive features :
|