What sets T10 steel apart from other high-carbon steels in katana?
Updated Feb 2026
T10 is a Chinese tool steel designation roughly equivalent to a high-carbon steel with a carbon content around 0.95–1.05% and a small amount of silicon and tungsten. What distinguishes T10 from standard 1075 or 1095 carbon steels is its finer carbide distribution and slightly better wear resistance, which allows it to hold a more refined edge geometry over time. For collectors, the practical advantage is that T10 responds exceptionally well to clay tempering — its grain structure supports clear, well-defined hamon activity that photographs beautifully and rewards close examination. It is also less prone to micro-chipping at the ha compared to steels with more irregular carbide clustering, making T10 katana among the most display-durable options available at this level of craftsmanship.