What steel types are used in red and gold katanas?
Updated Feb 2026
This collection spans several distinct steel grades, each with different characteristics worth understanding before you choose. 1045 carbon steel is a mid-range option with approximately 0.45% carbon content — it takes a good polish and holds up well as a display piece. 1060 and 1065 carbon steel sit higher on the hardness curve and produce a slightly more defined blade geometry. T10 tool steel is the most technically refined option here: its added silicon content improves toughness, and it responds exceptionally well to the clay tempering process, producing an authentic hamon temper line that collectors particularly value. Folded Damascus steel offers a layered billet construction where two or more steel types are forge-welded together, creating the flowing surface grain patterns visible after acid etching. Each steel type tells a different story about the smith's process, and for serious collectors, that story is a meaningful part of the piece's appeal.