Material VDI Group | Material Designation | Material Condition | Hardness | Grade | Speed M/Min |
1 | Non-alloy steel & Cast steel, Free cutting steel <0.15%C. | Annealed | ≤125 HB | ET801 | 120 - 200 |
2 | Non-alloy steel & Cast steel, Free cutting steel <0.45%C. | Annealed | ≤190 HB | ET801 | 120 - 200 |
3 | Non-alloy steel & Cast steel, Free cutting steel <0.45%C. | Annealed | ≤250 HB | ET801 | 120 - 200 |
4 | Non-alloy steel & Cast steel, Free cutting steel <0.75%C. | Annealed | ≤270 HB | ET801 | 120 - 200 |
5 | Non-alloy steel & Cast steel, Free cutting steel <0.75%C. | Quenched & Tempered | ≤300 HB | ET801 | 120 - 200 |
6 | Low-alloy steel & Cast steel (less than 5% of alloying elements) | Annealed | ≤180 HB | ET801 | 70 - 230 |
7 | Low-alloy steel & Cast steel (less than 5% of alloying elements) | Quenched & Tempered | ≤275 HB | ET801 | 70 - 230 |
8 | Low-alloy steel & Cast steel (less than 5% of alloying elements) | Quenched & Tempered | ≤300 HB | ET801 | 70 - 230 |
9 | Low-alloy steel & Cast steel (less than 5% of alloying elements) | Quenched & Tempered | ≤350 HB | ET801 | 70 - 230 |
10 | High-alloy steel, Cast steel & Tool steel | Annealed | ≤200 HB | ET801 | 70 - 180 |
11 | High-alloy steel, Cast steel & Tool steel | Quenched & Tempered | ≤325 HB | ET801 | 70 - 180 |
12 | Stainless steel & Cast stainless steel | Ferritic/Martensitic, Annealed | ≤200 HB | ET801 | 70 - 180 |
13 | Stainless steel & Cast stainless steel | Martensitic, Quenched & Tempered | ≤240 HB | ET801 | 70 - 180 |
15 | Grey cast iron | Pearlitic/Ferritic | ≤180 HB | ET801 | 60 - 160 |
16 | Grey cast iron | Pearlitic (Martensitic) | ≤260 HB | ET801 | 60 - 160 |
17 | Nodular cast iron | Ferritic | ≤160 HB | ET801 | 60 - 120 |
18 | Nodular cast iron | Pearlitic | ≤250 HB | ET801 | 60 - 120 |
19 | Malleable cast iron | Ferritic | ≤130 HB | ET801 | 60 - 120 |
20 | Malleable cast iron | Pearlitic | ≤230 HB | ET801 | 60 - 120 |
38 | Hardened steel | Hardened | ≤550 HB | ET801 | 40 - 80 |
39 | Hardened steel | Hardened | >550 HB | ET801 | 40 - 80 |
40 | Chilled cast iron | Cast | ≤400 HB | ET801 | 40 - 80 |
41 | Hardened cast iron | Hardened | ≤550 HB | ET801 | 40 - 80 |