How does 1060 carbon steel compare to T10 in these collectibles?
Updated Feb 2026
Both are high-carbon steels well-suited to katana construction, but they serve slightly different collector priorities. 1060 carbon steel contains roughly 0.6% carbon, making it tough, relatively easy to maintain, and forgiving of temperature and humidity changes — a practical choice for display pieces that may be handled regularly. T10 steel, sometimes called tool steel, has a higher carbon content around 1.0% along with trace tungsten, which allows it to take and hold a very fine edge geometry. When clay-tempered, T10 develops a genuine hamon — the undulating temper line along the blade's edge — that is visually distinct and highly valued by serious collectors. T10 pieces typically require more attentive maintenance (light oiling every few months) but reward that care with blade activity and surface character that 1060 doesn't replicate.