
Strength Hardness Material
| ISO | Material | Condition | [N/mm 2] | HB | No. | ||
| < 0.25 %C | Annealed | 420 | 125 | 1 | |||
| >= 0.25 %C | Annealed | 650 | 190 | 2 |
Non-alloy steel and cast steel,
< 0.55 %C Quenched and tempered 850 250 3
free cutting steel
| >= 0.55 %C | Annealed | 750 | 220 | 4 | |
| Quenched and tempered | 1000 | 300 | 5 | ||
| P | Annealed | 600 | 200 | 6 | |
| Low alloy steel and cast steel | 930 | 275 | 7 | ||
| (less than 5% of alloying elements) | Quenched and tempered | 1000 | 300 | 8 | |
| 1200 | 350 | 9 | |||
| High alloyed steel, cast steel, | Annealed | 680 | 200 | 10 | |
| and tool steel | Quenched and tempered | 1100 | 325 | 11 | |
| Stainless steel and | Ferritic/martensitic | 680 | 200 | 12 | |
| cast steel | Martensitic | 820 | 240 | 13 |
| Stainless steel | Austenitic | 600 | 180 | 14 |
| Ferritic/pearlitic | 180 | 15 |
Grey cast iron (GG)
| Pearlitic | 260 | 16 | |
| K | Ferritic | 160 | 17 |
Nodular cast iron (GGG)
| Pearlitic | 250 | 18 |
| Ferritic | 130 | 19 |
Malleable cast iron
| Pearlitic | 230 | 20 | |||
| Aluminum- | Not cureable | 60 | 21 | ||
| wrought alloy | Cured | 100 | 22 | ||
| <=12% Si | Not cureable | 75 | 23 |
Aluminum-cast,
Cured 90 24
N alloyed
| >12% Si | High temperature | 130 | 25 | |||
| >1% Pb | Free cutting | 110 | 26 | |||
| Copper alloys | Brass | 90 | 27 | |||
| Electrolitic copper | 100 | 28 |
Duroplastics, fiber plastics 29 Non-metallic Hard rubber 30
| Fe based | Annealed | 200 | 31 | |||
| Cured | 280 | 32 | ||||
| S | High temp. alloys | Annealed | 250 | 33 | ||
| Ni or Co based | Cured | 350 | 34 | |||
| Cast | 320 | 35 |
RM 400 36 Titanium Ti alloys
Alpha+beta alloys cured RM 1050 37
Hardened 55 HRC 38
H Hardened steel
| Hardened | 60 HRC | 39 | |
| Chilled cast iron | Cast | 400 | 40 |
| Cast iron | Hardened | 55 HRC | 41 |
(1)For workpiece materials list, see pages 1008-1043