Jade Radiance – Hand Forged 1065 Carbon Steel Katana Sword

Jade Radiance – Hand Forged 1065 Carbon Steel Katana Sword

The 1065 high carbon steel in this blade is not there by accident. It sits at a hardness range that holds a working edge without becoming brittle under lateral stress – the exact tradeoff a practitioner needs when repetition is part of the session. The Jade Radiance is built in the shinogi-zukuri (ridgeline) geometry known as 鎬造, a profile that has defined Japanese blade-making for centuries because it distributes impact intelligently along the spine while keeping the cutting edge lean and committed.

Specifications

The Steel

1065 sits at a carbon content level where the steel becomes genuinely useful without demanding the careful handling that higher-carbon alloys require. It responds well to the controlled-temperature furnace process used here – 马沸炉 恒温热处理 – which brings the blade through hardening at a stable, monitored temperature rather than relying on estimation. The result is a consistent hardness along the edge with enough core ductility to absorb the kind of shock that would crack a glass-hard blade. The 3.2 cm width and 0.7 cm spine give the geometry real authority without adding drag through a cut.

The 鎬造 (shinogi-zukuri) forging profile is the right choice for this steel. The raised ridgeline that runs the length of the blade stiffens the cross-section structurally while allowing the edge bevel to be ground shallow and sharp. This is not decorative geometry – it is how you get a 72 cm blade to cut cleanly rather than push.

In Your Hands

The 26 cm handle gives a full two-hand grip with room to spare – cotton ito wrapped over genuine same (rayskin) means the texture bites under both hands without slipping wet. The high-gloss lacquered hardwood saya (scabbard) draws cleanly, no drag, no rattle at the koiguchi (mouth of the scabbard). The 72 cm blade length puts the point where a 28-inch blade should sit: extended, controlled, and committed to the line of the cut.

Care

Wipe the blade dry after every session and apply a thin coat of choji oil (clove-based mineral oil, standard for Japanese swords) before storage. Keep the same away from prolonged moisture – the lacquer is durable but the wood beneath it is not impervious. Inspect the ito wrap periodically; cotton holds tight but benefits from a light re-tension if you train frequently.