 |
Free-cutting steel |
<200 |
<700 |
<10 |
 |
Structural/ cementation steel |
<200 |
<700 |
<30 |
 |
Carbon steels |
<300 |
<1000 |
<20 |
 |
Alloy steels < 850 n/mm2 |
<250 |
<850 |
<30 |
 |
Alloy steels hard./temp. > 850 - < 1150 N/mm2 |
>250 |
>850 |
<30 |
 |
High tensile alloy steel ≤ 44 HRC |
>250 |
>850 |
<12 |
 |
High tensile alloy steel > 55 HRC |
>44 HRC |
54 HRC |
|
 |
Alloy steels hardened > 54 - ≤ 63 HRC |
55 HRc |
63 HRc |
|