T10 is a high-carbon tool steel that is known for its toughness and durability, making it suitable for use in sword blades. It is often used in the production of functional and practical swords, particularly in Chinese swordmaking traditions.

T10 steel has a high carbon content, typically around 1%, which contributes to its hardness and edge retention. It can be heat-treated to achieve a high level of hardness, allowing it to hold a sharp edge. T10 steel also has good impact resistance and can withstand heavy use without easily chipping or breaking.

However, it's important to note that T10 steel is not stainless and is susceptible to corrosion. Proper care and maintenance, including regular oiling and drying, are necessary to prevent rust and maintain its performance.

The choice of sword steel depends on various factors, including the specific requirements and intended use of the sword. While T10 steel can be a suitable choice for sword blades, it's recommended to consult with experienced swordsmiths, reputable manufacturers, or knowledgeable experts who can provide guidance based on your specific needs and preferences. They can offer insights on heat treatment processes and other considerations to ensure the best performance from T10 steel.