TS EN 10020

TS EN 10020 is a terminology and classification standard that defines the term steel and organises steel grades into classes. In metallurgical practice, it provides a common technical language for describing what is meant by “steel” and how different steel types are grouped.

Why steel classification matters

Steel is a family of iron-based alloys, and its behaviour changes significantly with carbon content, alloying elements, processing route and intended use. Classification is therefore more than naming: it is a technical framework that helps distinguish steel families by composition, properties, formability, strength and application context. This standard establishes that shared framework by classifying steel grades.

What this standard covers

• Definition of the term steel
• Classification of steel grades
• A common reference point for metallurgical terminology
• A Turkish adoption based on EN 10020

In general technical terms, standards like this help reduce ambiguity in design, procurement, quality control and material selection. They also make it easier to communicate the boundaries between different steel families in engineering and manufacturing contexts. TS EN 10020 is therefore a foundational reference for users who need to understand how steel grades are grouped at a general level.