Carburizing Steels
N6587
Medium-hardening steel, which reaches high hardness after carburizing, ideal for parts requiring mechanical strength in the range of 80 to 120 Kgf/mm2 (800 to 1200 MPa or N/mm2) in the core. It is used in the manufacture of large and medium-sized gears and pinion shafts for gearboxes.
- ABTN | ASTM | SAE | AISI: –
- DIN | WNr: 1.6587
- Chemical composition:
| C % | Mn % | Cr % | Ni % | Mo % | OTHERS % |
| 0,17 | 0,50 | 1,65 | 1,55 | 0,30 | – |
VB20
Low hardenability steel, which reaches medium hardness after carburizing, ideal for parts requiring a mechanical strength of 70 to 110 Kgf/mm2 (700 to 1100 MPa or N/mm2) in the core. Use in the manufacture of medium or small gears.
- ABTN | ASTM | SAE | AISI: 8620
- DIN | WNr: 1.6523
- Chemical composition:
| C % | Mn % | Cr % | Ni % | Mo % | OTHERS % |
| 0,20 | 0,80 | 0,50 | 0,55 | 0,20 | – |
VM20
Medium-hardening steel, which reaches high hardness after carburizing, ideal for parts requiring mechanical strength in the range of 80 to 120 Kgf/mm2 (800 to 1200 MPa or N/mm2) in the core. Use in the manufacture of larger gears.
- ABTN | ASTM | SAE | AISI: 4320
- DIN | WNr: –
- Chemical composition:
| C % | Mn % | Cr % | Ni % | Mo % | OTHERS % |
| 0,20 | 0,55 | 0,50 | 1,80 | 0,25 | – |