What is the appropriate hardness of the blade of a woodworking tool?

The hardness of the cutting edge of the knife is generally 56+HRC.
58+HRC steel is already very good, and 60HRC is the hardest.
The following steels have a hardness of 58+HRC.
AUS-8: A high-carbon, low-chromium stainless steel that has proven over time to have excellent compromise characteristics; it is both hard and tough, does not rust and remains sharp for a long time.
ATS-34: Nippon Steel is produced by Japan Steel Corporation. The material used in most handmade knives is also the high-grade stainless steel material selected by famous brand manufacturers.
ATS-34: It is also a high carbon steel with a hardness of 59-61HRC. Some people think it is one of the best blade steels currently. In addition, American 154CM steel is equivalent to ATS-34.
GIN-1: Also called G2 before, it is a low-cost steel that is slightly softer than AUS-8.
CPM-T440V: Recently considered a super knife-making steel, it is more durable than all stainless steels currently on the market and requires no sharpening for a long time.
SAN MAI III (Triple Layer Steel): An expensive Japanese sheet laminated steel. The hard inner layer with high carbon content serves as the center layer of the blade, and the tough elastic layers that have been tempered on both sides. The final blade combines the characteristics of high-quality steel and is of high quality. It is 25% tougher than AUS-8.
420J: It is a low-carbon steel that is tough (even not easy to break), impact-resistant, corrosion-resistant, can stay moderately sharp, and is easy to maintain. Many ornamental swords use this steel.
CARBON V: A pure carbon alloy steel, Cold Steel adds a small amount of alloying elements to the large quantities of high-grade carbon steel it purchases to increase the steel's toughness and durability, and then rolls it to exacting specifications to obtain the best quality. The crystallization makes the blade outstanding.
440C: It is also a high-quality stainless steel currently in the high-end batch tool market. Its strength and sharpness are better than ATS.
D2: Recently, KA-BAR factory has adopted D2 type steel, which is a high-quality tool steel with a hardness of 59-60HRC, deep cold treatment to -120 degrees, and annealing twice. Its advantages are toughness and long-term blade retention.