Strength, honor, and courage. These are but a few of the traits symbolic of the koi fish and the Blue Koi Samurai Katana. Add this katana to your home and let it be a reminder of one of nature’s most beautiful fish.
A Statement of Courage and Perseverance
Forged from 1045 carbon steel, this katana is a faithful replica of feudal Japanese swords, handmade with artistry in mind. Carbon steel is known for its strength and durability. This katana, also known as a Japanese longsword, can be wielded with one or both hands. This is a fully functional weapon. It’s great for practice cuts and display. 1045 carbon steel means the blade has 0.45% carbon content, offering a great balance between toughness and edge retention. The metal blade extends into the handle in one solid piece, enhancing its strength and durability.
The sharpened blade is slightly curved like true uchigatana from feudal Japanese history. The uchigatana is another traditional term for describing this slightly curved Japanese katana. The blade has been differentially hardened to reveal a natural hamon line. Hamon is the wavy pattern close to the cutting edge of the blade. Its sharpened edge is rated at a Rockwell hardness of 45. There is a distinct bohi along the blade, also known as the fuller. This fuller removes extra weight from the blade without compromising its integrity. The tip, also known as the kissaki, is medium length.
Further down, the zinc alloy habaki, or blade collar is anchored to the guard by notched seppa. Seppa are the notched washers on each side of the crossguard. The tsuba crossguard is fashioned in the traditional maru-gata style, known for its round, circular shape with perforations in the design. This round handguard is carved to resemble two koi fish swimming around each other. This creates fluid, dynamic detail with a sense of movement. Each fish is engraved with realistic scales, complemented by their grooved fins and gills to help bring them to life.
The wooden handle is wrapped in a layer of faux white ray skin, then wrapped with blue polyester cord, known as tsuka-ito. Embossed on the pebbled faux ray skin is a zinc alloy menuki with a brass finish. Menuki refers to the decoration on the handle just underneath the tsuka-ito wrapping. At the bottom, the hilt is wrapped through a brass kashira pommel.
This koi carbon steel katana comes with a hard wood saya scabbard and a certificate of authenticity. The certificate not only ensures you’re holding the real thing, it also provides information about the weapon. Like the waves of the sea, this scabbard has an ocean blue finish. It’s then splashed with white like the frothing tides. The scabbard has blue sageo, also known as a cord tied around the scabbard for tying onto your belt. The sageo is tied to a kurigata, known as the black protrusion on the scabbard. The protrusion has a brass spacer. Please note the cords on the scabbard and the handle may not be as pictured.
Embrace the Majesty of the Water
If you love katanas, samurai, koi fish, and unique blades, this blue koi katana is the ideal choice. This koi fish katana stuns and inspires admiration from all who behold its cool blue hue. Like the majestic waves of the sea, this carbon steel samurai sword evokes power, strength, and perseverance with every glance. Thanks to its sharpened edge, this Japanese sword is a good choice for Tameshigiri, test cuts made on practice targets. Whether you’re looking for a piece to add to your collection or you’re dressing up for the next cosplay event, the Blue Koi Samurai Katana brings a hint of nature and elegance into your collection. If you have a friend or loved one that loves katanas, then this magnificent weapon becomes an excellent gift idea. Order this koi fish katana for a special someone’s special day and watch as it becomes a beloved addition to their arsenal.
Key Features:
- Fully Functional: Sharpened for practice cutting.
- Blue Koi Motif: Inspired by the majestic koi fish and the power of the sea.
- Visible Hamon Line: Differentially hardened to reveal a stunning pattern on the blade.
- Blue Sea Saya Scabbard: Includes a wooden scabbard patterned with blue and white splashes.
- Excellent Samurai Collectible: Comes with a certificate of authenticity.
- A Katana Fan’s Must-Have: Great for your weapons collection and home decor.
Materials:
- Blade is 1045 carbon steel
- Handle is wood wrapped in synthetic ray skin and polyester cord
- Handle fittings are brass
- Guard is zinc alloy
- Scabbard is hard wood wrapped in polyester rope
Care Instructions:
- Check out our Sword Care and Maintenance Guide for all kinds of info on how to take care of your sword and keep it in its best shape.






















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