| 1.5920 | 18 CrNi 8 |
1.5920 is a case hardening steel
Composition:
| C | Si | Mn | p | s | Cr | Mo | Ni | B |
| 0,15-0,20 | 0,15-0,40 | 0,40-0,60 | 0,035 | 0,035 | 1,80-2,10 | – | 1,80-2,10 | – |
Hot working:
Forging temperature range: 1200-850℃
Note: Heat to 1230 ℃. Do not forge below 850.
Heat treatment:
| Soft annealing | Heat treatment to obtain a certain structure | Heat treatment to obtain a certain tensile strength | Carburize | Core hardening | intermediate annealing | Surface hardening | Temper |
| 650-700 | 850-950 | 900-1000 | 900-950 | 840-870 | 630-650 | 800-830 | 170-210 |
Main application:
Plate wheels, driving pinions and highly stressed cog wheels
Shape of product:
Round, flat, step shape, ring, disc, shaft, other shape depend on customer needs
