EN 9 is a medium-carbon steel that offers improved strength and hardness compared to lower carbon steels, making it a popular choice for applications requiring enhanced mechanical properties. With a carbon content of approximately 0.45%, EN 9 provides a good balance of strength, toughness, and wear resistance. This steel grade is often used in manufacturing components that are subject to high wear and tear, such as axles, shafts, gears, and crankshafts, particularly in the automotive, engineering, and mechanical sectors. EN 9 is highly responsive to heat treatment, allowing for an increase in hardness and strength, which makes it suitable for a range of demanding applications. It can be supplied in various forms, including bars, plates, and forgings, and is typically available in a normalized or hardened state to meet specific strength and durability requirements. Its higher carbon content also improves its machinability, making it a versatile choice for producing components that need to withstand significant mechanical stress.
