How does T10 steel differ from 1045 or 1060 in these katana?

 Updated Mar 2026

T10 is a high-carbon tool steel with added tungsten, giving it superior wear resistance and the ability to hold fine surface polish exceptionally well. When clay tempered, T10 blades develop a genuine hamon — the visible temper line along the edge — that results from differential hardening rather than surface etching. By contrast, 1045 carbon steel (roughly 0.45% carbon) is softer and more uniform, making it a practical, lower-cost option for display and cosplay collecting. 1060 sits between the two, offering tighter grain than 1045 and better edge geometry. For collectors who prioritize metallurgical authenticity and surface artistry, T10 clay-tempered blades are the clear choice in this collection.

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