What steel grades are available in the original katana collection?
Updated Feb 2026
Original katana in this collection are available across the full range of high-carbon steel grades used in serious Japanese sword collecting. T10 carbon steel with clay tempering represents the most traditionally constructed original katana: the differential heat treatment produces a visible hamon along the blade length, and the plain traditional mounting allows the hamon to be the primary visual focus without decorative competition. Damascus steel original katana offer the visual complexity of fold-forged layered blade patterning within the traditional black-scabbard katana format, creating pieces where the blade's surface character is the primary visual interest in an otherwise classically presented sword. 1060 carbon steel provides the solid mid-tier option with excellent blade hardness and the black scabbard traditional presentation. 1045 carbon steel original katana represent the most accessible entry point into the classic katana format. The collection also includes tachi-length pieces that extend the blade length to the pre-katana tradition.