| 18NiCrMo5 | 1.6566 |
1.6566 is a carburizing steel with intermediate case hardenability and medium core hardenability. It is available as hot worked and cold finished bar, rod, and wire; bar subject to end-quench hardenability requirements; and aircraft quality parts
Composition:
| C | Si | Mn | p | s | Cr | Mo | Ni |
| 0.15-0.21 | 0.15-0.4 | 0.6-0.9 | 0.035 | 0.035 | 0.7-1 | 0.15-0.25 | 1.2-1.5 |
Hot working:
Forging temperature range: 1200-850℃
Note: Heat to 1200 ℃. Do not forge below 850.
Heat treatment:
| Normalizing | Annealing | Hardening temprature(℃) for quenching in oil | Temper | Carburizing |
| 900-930 | 790-850 | 870-910 | 570-700 | 780-820 |
Main application:
Gear component, bolts, arbors, bushes, coupling boxes high loaded gear parts
Shape of product:
Round, flat, step shape, ring, disc, shaft, other shape depend on customer needs
