What are equivalent grades of EN9?

EN9 is a medium carbon steel grade, commonly used for applications requiring good wear resistance and strength. Equivalent grades to EN9 include AISI 1040, SAE 1040, and ASTM 1040 in the United States, while other equivalents may be found in different standards, such as JIS S45C in Japan. It's important to consider specific mechanical properties and chemical composition when comparing equivalents for a particular application.