20NiCrMoS2-2
1.6526Free-cutting variant of 20NiCrMo2-2 (1.6523/AISI 8620) — S addition for improved machinability on CNC automatics. Same case-hardening properties as 8620. THE free-cutting automotive gear and pinion steel for high-volume CNC production. Surface HRC 58-62 after carburizing with good core toughness.
International equivalents
| Flag | Standard | Country | Grade | Number | Match |
|---|---|---|---|---|---|
| 🇪🇺 | EN | Europe | 20NiCrMoS2-2 / 1.6526 | 1.6526 | 100% |
Sources: EN 10084
Chemical composition comparison (wt%)
Side-by-side: 20NiCrMoS2-2 (EN 10084) vs 20NiCrMoS2-2 / 1.6526 (EN) (EN 10084)
| Element | 20NiCrMoS2-2 (EN 10084) | 20NiCrMoS2-2 / 1.6526 (EN) | Overlap |
|---|---|---|---|
| C | — | 0.17–0.23% | — |
| Si | — | 0–0.4% | — |
Mechanical properties
Compatibility verdict
20NiCrMoS2-2 and 20NiCrMoS2-2 / 1.6526: 100% composition match
Related materials
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34CrNiMo6
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