T10 is known as a tough high-speed tool steel that withstands a lot of abuse. Let us tell you more about what it is and why we use it.

What is T10?

T10 is a steel most commonly used in swords, for it is extremely hard and provides tremendous cutting power when correctly forged. Usually, the hardness rating goes past 60 HRC, and it can even reach 67 HRC. That is extremely hard, and can be problematic for durability, as hard steels are more liable to break or chip off. This is why the treatment keeps the hardness level more reasonable at 60HRC or so. T10 steel is difficult to work with as it doesn’t respond very well to heat-treatment processes, but with the skills of our sword smiths, anything is possible.

The name itself is quite self explanatory, the “T” in the name refers to its tungsten content (0.3%), as not many steel alloys contain any tungsten. The “10” in the designation refers to the relatively high 1.0% carbon content.


Why T10?

Compared to the 1095 steel that we also use, the T10 is very similar, and in fact the T10 started out as some sort of 1095 modification from China. The T10 is more expensive, but it flexes better than the 1095.

If well maintained, a T10 sword will also keep the razor sharp edge immaculate for longer. For maintenance, you only need to hone the edge after using, and keep it stored properly to avoid rust issues.

If you’re going to get a sword just to display it, then T10 steel isn't necessary. But if you’re serious about your sword and you’re actually going to use the sword for cutting practice, then the T10 steel is just what you need. You will be able to cut through your bamboo targets with ease, and you won’t end up with a broken sword unless you really mess up!

Click here to read about the legendary Tamahagane.