What care does a 1060 carbon steel katana require to prevent surface oxidation?
Updated Feb 2026
1060 carbon steel requires regular oil maintenance because carbon steel in general reacts with atmospheric moisture to form surface rust when left unprotected. The care routine after every handling session is: wipe the blade thoroughly with a soft lint-free cloth to remove fingerprints and any moisture, then apply a thin coat of camellia or mineral oil to the complete blade surface, and buff away excess to leave only a thin protective film. Do not skip this routine even after brief handling - the acids in fingerprints begin affecting carbon steel quickly. Store in a stable-humidity environment away from direct sunlight and temperature extremes. Inspect the blade under good light periodically for early signs of surface oxidation and address any spots immediately before they progress.