Katana – Blue Tempered High Carbon Steel Blade with Koi Tsuba | Butterfly Love

【Overview】

This katana features a vivid blue-tempered high carbon steel blade paired with elegant decorative fittings, creating a refined balance between visual beauty and functional performance. Designed for collectors and display-oriented practitioners, it blends traditional craftsmanship with artistic expression.

【Blade & Craftsmanship】

The blade is hand-forged from high carbon steel using traditional forging techniques.

A high-temperature blue tempering process produces the deep blue finish across the blade surface.

A groove (bo-hi) is incorporated to improve balance and airflow, while careful hand polishing reveals subtle wave-like surface patterns along the blade.

【Design & Mountings】

The katana features an exclusive silver koi-themed tsuba, symbolizing strength, perseverance, and good fortune in Japanese culture.

The refined fittings complement the blue blade, reinforcing the sword’s elegant and artistic character.

【Handle & Saya】

The saya is crafted from natural hardwood and finished with intricate hand-carved openwork detailing, showcasing skilled craftsmanship.

A dual-color decorative sageo adds a refined accent, enhancing the overall presentation.

【Performance】

This katana delivers sharp and reliable cutting performance, suitable for bamboo and tatami-style targets.

It successfully balances decorative artistry with practical cutting capability.

【Specifications】

Overall length: 103 cm (40.6 in)

Blade length: 72 cm (28.3 in)

Handle length: 26 cm (10.2 in)

Blade width: 3.2 cm (1.26 in)

Blade thickness: 0.7 cm (0.28 in)

Total weight: 1.2 kg (2.65 lb)

Net weight: 0.9 kg (1.98 lb)

【Usage & Gift】

Ideal for sword collectors, interior display, martial arts-themed décor, and fitness cutting practice.

Its artistic blue blade and koi motif also make it a distinctive and elegant gift.