This standard is essential for industries working with steel, as it provides a clear and concise way of designating and classifying steel grades, ensuring that materials meet specific requirements and are used appropriately.

version) organizes steel into three primary groups based on their chemical composition Non-alloy Steels

Iron and carbon are the primary elements; other elements are present only as impurities or in very small, controlled quantities (e.g., Mn < 1.65%, Cu < 0.60%, Si < 0.60%).

en 10020 pdf