Through Tempered Katana

Tempered to an Optimal Hardness and Resilience

These blades are not forged traditionally but are forged just as tough. Unlike differential tempered katana these blades are tempered to an optimal hardness all the way through the spine to the cutting edge. Many are forged with modern "super steels" and "tool steels" that lack the impurities of the traditional sand irons creating true swords worthy of the Japanese samurai. The knowledge acquired by modern sword smiths merged with the smelting ability of today's refineries give us a few hundred years advantage over the swordsman that inspired us. Taking advantage of everything learned from the past with modern technology enables us to produce even stronger and resilient swords for today's martial artist.

Tactical Forged Katana
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This full #tang tactical katana is a hand forge...

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Winter Sun Katana
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Raptor Nanbokucho Zukuri Katana
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Summer Lotus Katana
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By: Dragon King

Frenchie Jin, creator of the Seasonal katana se...

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Raptor Shobu Zukuri Katana
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By: Paul Chen - Hanwei

The Raptor series, our new line of cutting kata...

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Autumn Leaf Katana
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By: Dragon King

The symbolism of the ginkgo leaf for longevity ...

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Moroha Zukuri - Raptor Katana
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By: Paul Chen - Hanwei

Forged in the Kissaki Moro Ha Zukuri style, the...

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Raptor Unokubi Zukuri Katana
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By: Paul Chen - Hanwei

The Raptor Katana Unokubi-Zukuri (Cormorant's N...

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Spring Sakura Katana
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By: Dragon King

Japanese history teaches us that there was no g...

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Raptor Shinogi Zukuri Katana
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By: Paul Chen - Hanwei

The Raptor series, our new line of cutting kata...

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Practical Dragon Katana
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This Practical Dragon Katana is a starter katan...

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Damascus Hand Forged Katana
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This hand forged katana will be noticed in your...

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Hand Forged Dragon Katana
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This katana is forged for the beginner in a cla...

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Mokko Renshu Katana
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By: Paul Chen - Hanwei

This Mokko Renshu Katana features a through har...

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What is a Through-Tempered Katana?

A through-tempered katana is a sword that has undergone a heat treatment process in which the entire blade is heated to a uniform temperature and then quenched in a medium such as oil, water, or air. This creates a blade that is consistent in its hardness throughout, as opposed to a differentially clay tempered blade, which has a harder edge and a softer spine. The through-tempering process is a modern technique that was developed as an alternative to the traditional clay-tempering method.

How is a Through-Tempered Katana Different from a Differentially-Tempered Katana?

The main difference between a through-tempered katana and a differentially-tempered katana is the consistency of the blade's hardness. In a differentially clay tempered sword, the edge is harder than the spine, which allows for a sharp edge that can cut through tougher materials, while the spine remains flexible to prevent the blade from breaking. In contrast, a through-tempered blade has a consistent hardness throughout the blade, which makes it more resilient and less prone to chipping or breaking.

Benefits of a Through-Tempered Katana

One of the main benefits of a through-tempered katana is its strength and durability. A through-tempered blade is less likely to chip or break under stress, making it an excellent choice for martial artists who use their swords for cutting exercises. The consistent hardness of the blade also allows for more precise control, as the blade will not flex or bend as much as a differentially-tempered blade.