Home / Metals / Special Alloy Steel / 9Cr18 High-Carbon Chromium Martensitic Stainless Steel Bearing Steel 9Cr18 High-Carbon Chromium Martensitic Stainless Steel 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 321 (UNS S32100/1.4541) Type 309S (UNS S30908/1.4833)