T10 clay tempered steel is known for its strength and durability, making it a popular choice for sword blades. T10 steel is a high-carbon steel alloy that contains approximately 1.0% carbon, which contributes to its hardness and edge retention.

The clay tempering process involves applying a clay coating to the blade before heating and quenching. This differential heat treatment creates a distinct hard edge (yakiba) and a softer, more flexible spine (mune). The resulting blade combines the hardness needed for cutting ability and edge retention with the flexibility required to withstand impacts without breaking.

When properly forged and heat-treated, T10 clay tempered steel can produce a sword blade with excellent toughness and resilience. It is capable of withstanding the forces of cutting, slashing, and combat while maintaining its sharpness and integrity.

However, it's important to note that the strength and performance of a sword blade also depend on factors such as the quality of craftsmanship, heat treatment techniques, blade geometry, and overall design. The skill of the swordsmith plays a crucial role in maximizing the potential of the T10 steel and achieving a high-quality, functional sword.

Regular maintenance, such as proper cleaning, drying, and application of protective coatings or oils, is essential to preserve the blade's strength and resistance to corrosion. It's recommended to follow the care instructions provided by the sword's manufacturer or consult with an experienced swordsmith for specific guidance on maintaining and caring for a T10 clay tempered steel sword.