18CrNiMo7-6
1.6587Premium Cr-Ni-Mo case-hardening steel for the most demanding gear applications. Excellent core toughness and hardenability for large cross-sections. The standard gear steel for wind turbines, heavy-duty gearboxes, and aerospace gearing.
International equivalents
| Flag | Standard | Country | Grade | Number | Match |
|---|---|---|---|---|---|
| 🇺🇸 | AISI | USA | AISI 4820 (approx) | — | REF |
| 🇪🇺 | EN | Europe | 18CrNiMo7-6 | 1.6587 | 100% |
| 🇨🇳 | GB | China | 17CrNiMo6 | — | 90% |
Sources: ASTM A29, EN 10084:2008, GB/T 3077
Mechanical properties — Pro
Carburized QT
| Property | Value | Unit |
|---|---|---|
| Hardness HRC | ||
| Tensile Strength |
As Received
| Property | Value | Unit |
|---|---|---|
| Hardness HB | ||
| Elastic Modulus | ||
| Density |
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