What hamon patterns can I expect on T10 clay-tempered katana?
Updated Feb 2026
T10 hamon patterns vary because the clay application during tempering is done by hand, creating unique results on each blade. Common patterns include suguha (straight hamon), midare (irregular wavy), notare (gentle undulating waves), and gunome (repeating semicircles). The specific pattern depends on how the smith applied the clay mixture before quenching. Within any pattern type, the fine detail — the nioi and nie particles visible at close examination — varies from blade to blade. This means every T10 clay-tempered katana carries a hamon that is genuinely one of a kind, making it both a performance feature and a collectible quality.