The standard primarily categorizes steel into three main groups based on their chemical composition ScienceDirect.com Non-Alloy Steels

Steels that are not stainless but contain at least one element at or above the threshold limits defined in the standard's "Table 1". 2. Main Quality Classes

Since you also asked for a , here is a narrative breakdown that personifies the cold, rigid world of metallurgy, using the exact definitions outlined in the EN 10020 standard. 🛠️ The Story of EN 10020: The Iron Constitution

: Steels with stricter requirements regarding properties like toughness, grain size, or formability.

Steels where the content of each element is below a specific limit (e.g., Manganese < 1.65%, Silicon < 0.60%, Copper < 0.40%). Stainless Steels: