Composition in % :
|
C |
Si |
Mn |
P |
S |
Cr |
Mo |
Ni |
|
1,15 - 1,25 |
max. 0,45 |
max. 0,40 |
max. 0,030 |
max. 0,030 |
3,80 - 4,50 |
4,70 - 5,20 |
|
|
V |
W |
Ti |
Cu |
Al |
Nb |
B |
N |
|
2,70 - 3,20 |
6,00 - 6,70 |
|
|
|
|
|
|
Range of application and heat treatment :
|
High-speed steel : high performance cutter , highly stressed
tools
Hardening : 1200 - 1240 °C (oil or air) Tempering
: 550 - 570 °C Soft
annealing : 770 - 820 °C |
General and distinctive features :
|