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By lyuesword | 18 August 2021 | 0 Comments

Steel Comparison Ⅱ

1060 Carbon Steel

1060 Carbon Steel is our most basic entry level of high carbon steel. The high carbon in the 1060 steel makes it durable, but it is not enough to compromise its pliability. Actually, the swords made of 1060 carbon steel keeps their edges sharp, are suitable for soft objects and medium targets. It is the favorite steel material of famous swords companies. 

1095 Carbon Steel

1095 carbon steel is carbon steel that contains 0.95% of carbon. This carbon percentage results in a hard steel. 1095 carbon steel Katanas are more suitable than the 1060. It is important to notice that clay tempered (differentially hardened) results in harden the edge and keeping the spine softer, this method increase the durability of the edge, more flexible and enhances the resistance to corrosion, therefore the edge will support the frequent dojo cut and outdoor display.

T10 Tool Steel

T10 steel has 1% carbon content and referred to as High Speed Steel, it is hard and durable, and the blade edge retain its sharpness overtime. The maximum of resistance and toughness is obtained when properly clay tempered. It is one of the favorite steel choices among sword collectors. 

9260 Spring steel

Spring steel is modern steel used to make springs. Spring steel Katana are characterized by an excellent durability: they exhibit an uncommon resistance to bending and mistaken strikes, the 9260 spring steel swords are tempered, resilient and tough yet very flexible.

Clay Tempering (Differential Hardening)

Clay tempered blades are swords that have a real hamon, they have soft spine and hardened edge, the HRC of the edge is around 62. When a sword is clay tempered the edge is hardened so it will retain a sharp edge while the spine is left softer so it will bend but not break when hitting medium and high targets. A clay tempered blade is important for making a sword that can withstand extensive tameshigiri. 

Folded Steel

Your probably heard about Damascus steel and Japanese folded steel Katana, the process of Nihonto in ancient Japan involved folding the steel to get rid of impurities, due to lack of good quality iron. 
Today, folding is done to increase the beauty of the blade and add a Grain (Hada) to the steel, which creates beautiful patterns on the blade, however with today modern steel, it does not improve the hardness of the blade, or the performance of the sword. Moreover, if folding is not done properly, this can cause failure between the layers of the blade, and actually decrease the blade performance. 

Generally, functional swords that can be used for combat and training are made out of carbon steel since long blades made of stainless steel are brittle and cannot withstand test cutting, trying to cut things with stainless steel sword can be dangerous, stainless steel is excellent steel for knives, however when it comes to swords, always go for carbon steel.

Carbon steel katana can vary in the carbon steel concentration and added alloys differ depending on the steel and tempering process.

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