Home / Metals / Special Alloy Steel / 100CrMnSi6-4 | EN 1.3520 | 100CrMn6 Bearing Steel 100CrMnSi6-4 | EN 1.3520 | 100CrMn6 Bearing Steel Get A Free Quote Now! Description Description Get A Free Quote Now! Your Name (required) Your Email (required) Subject Your Message Related products Type 347 (UNS S34700/1.4550) Type 305 (UNS S30500/1.4303) Type 309 (UNS S30900/1.4828)