8620 (21NiCrMo2)
Unlike 5120, it is a case-hardening steel that contains chromium-molybdenum-nickel as alloy elements. Due to molybdenum and nickel, its mechanical properties are better than 5120. It is used in applications where a ductile core and hard surface are desired against wear through the case-hardening process. It is supplied in a soft annealed condition.
| C | Si | Mn | P Max | S | Cr | Mo | Ni |
|---|---|---|---|---|---|---|---|
| 0,17 - 0,23 | 0,04 | 0,65 - 0,95 | 0,035 | 0,040 | 0,35 - 0,70 | 0,15 - 0,25 | 0,40 - 0,70 |
STANDARD EQUIVALENTS OF THE MATERIAL
| DIN | AISI/SAE | EN |
|---|---|---|
| 1.6523 | 8620 | 21NiCrMo2 |
APPLICATION AREAS
- Machine components
- Transmission parts
- Gear wheel, bevel gear
- Shaft, pin, bushing, and similar parts
