EN 10020 divides steels into three major groups:
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%).
| Country | Standard | Link | |---|---|---| | International | EN 10020:2000 | Intertek Inform Store | | UK | BS EN 10020:2000 | BSI Shop | | Germany | DIN EN 10020:2000-07 | Beuth Verlag/DIN Media | | France | NF EN 10020:2000 | AFNOR Boutique | | Italy | UNI EN 10020:2001 | UNI Store | | Spain | UNE-EN 10020:2001 | AENOR | | Ireland | I.S. EN 10020:2000 | NSAI Shop | en 10020 pdf
Understanding EN 10020: The Standard for Classifying Steel Choosing the right steel can be hard. There are thousands of different steel types. Engineers and builders need a clear way to sort them.
The standard uses a specific limit for each element to separate them. If a steel has more than the limit of a certain metal, it becomes an alloy steel. 1. Non-Alloy Steels EN 10020 divides steels into three major groups:
: Steels requiring closer control of properties like grain size or formability. Special Steels
EN 10020 is not a material specification (it does not give mechanical properties). Instead, it: There are thousands of different steel types
, which covers the actual naming (designation) system for these steels. : Ensure you are looking at the current EN 10020:2000
: Steels that do not meet the definitions of non-alloy or stainless steels. Quality Classes
┌──────────────────────────┐ │ EN 10020 Steel │ └────────────┬─────────────┘ │ ┌────────────────────────┼────────────────────────┐ ▼ ▼ ▼ ┌─────────────────┐ ┌─────────────────┐ ┌─────────────────┐ │ Non-Alloy Steel │ │ Stainless Steel │ │ Alloy Steel │ │ (Below Limits) │ │ (≥10.5% Cr, │ │ (Exceeds Limits,│ └─────────────────┘ │ ≤1.2% C) │ │ Non-Stainless) │ └─────────────────┘ └─────────────────┘ Non-Alloy Steels