1065 carbon steel is a medium-high carbon steel alloy that is often used in various applications due to its balance of hardness and durability. Here are some characteristics of 1065 carbon steel:

1. Carbon content: 1065 carbon steel contains approximately 0.60% to 0.70% carbon. The high carbon content contributes to its hardness and strength.
2. Hardness: 1065 carbon steel has a high level of hardness, typically achieving a Rockwell hardness of around 60 to 64 HRC when properly heat treated. This makes it suitable for applications where hardness and edge retention are important factors.
3. Strength: The high carbon content in 1065 steel provides excellent strength and toughness. It has good resistance to deformation and can withstand heavy use and impact.
4. Wear resistance: Due to its hardness, 1065 carbon steel exhibits good wear resistance. It can retain its sharpness and edge for an extended period, making it suitable for applications such as knives, blades, and cutting tools.
5. Machinability: 1065 carbon steel can be machined relatively easily compared to higher carbon steels. However, its hardness can make it more challenging to work with than lower carbon steels.
6. Corrosion resistance: 1065 carbon steel is not highly resistant to corrosion. It is prone to rusting and requires proper maintenance and care to prevent corrosion. Regular oiling or coating can help protect it from moisture and oxidation.

Overall, 1065 carbon steel is a durable and hard steel alloy that is suitable for applications where high strength, hardness, and wear resistance are required. It is commonly used in the production of blades, knives, hand tools, and industrial machinery components. Proper heat treatment and maintenance are essential to maximize its performance and longevity.