THROUGH-HARDENING BEARING STEEL
Through-hardening steel contains typically 1% carbon and alloying elements for hardenability, exhibiting very high strength but low ductility. Used with martensitic or bainitic hardening, typically for roller bearing components.
Through-Hardening Bearing Steel
| EN-standard | Ovako | Comments | C | Si | Mn | Cr | Mo | Ni | Other |
|---|---|---|---|---|---|---|---|---|---|
| CS5 | 510 | Low hardenability for small components or after surface induction hardening. | 0.50 | 0.2 | 0.6 | 0.2 | |||
| 66SiMnCrMo6-6-4*3 | 677 | Bearing steel suitable for gas/air hardening. | 0.67 | 1.5 | 1.4 | 1.0 | 0.2 | ||
| 100Cr6 | 802, 803, 5620 | The most commonly used bearing steel with a hardenablity fo, small components (wall thickness 17 mm). | 1.00 | 0.3 | 0.3 | 1.4 | |||
| 100CrMo7 | 824 | Increased hardenability with Cr and Mo for small- and medium-sized components (wall thickness 20 mm). | 0.95 | 0.3 | 0.3 | 1.7 | 0.2 | ||
| 100CrMo7-3 | 825 | Increased hardenability with Cr and Mo for medium- sized components (wall thickness 30 mm). | 0.95 | 0.3 | 0.7 | 1.7 | 0.2 | ||
| 100CrMo7-4 | 826 | Increased hardenability with Cr and Mo for medium- and large-sized components (wall thickness 50mm). | 0.95 | 0.3 | 0.6 | 1.7 | 0.4 | ||
| 100CrMnMoSi8-4-6 | 827 | Increased hardenability with Cr, Mo and S1 for large-sized components (wall thickness 75 mm). | 0.95 | 0.5 | 0.9 | 1.9 | 0.6 | ||
| 100CrMnS14-4 | 831 | Increased hardenability with Cr, Mn and S1 for small- and medium-sized components (wall thickness 20 mm). | 0.95 | 0.6 | 1.1 | 1.0 | |||
| 100CrMnSi6-6 | 832 | Increased hardenabiity with Cr, Mn and S1 for medium - sized components (wall thickness 40 mm). | 0.90 | 0.7 | 1.5 | 1.4 | |||
| 100CrMnSi6-4 | 837, 5625 | Increased hardenability with Cr, Mn and S for small- and medium-sized components (wall thickness 30 mm). | 0.95 | 0.6 | 1.0 | 1.5 |
