: These require more care during production. They have better resistance to cracking and better grain size.
Many European design codes, such as the Eurocodes for structural engineering, legally mandate compliance with materials classified under EN standards. How to Access the Official EN 10020 PDF
Helps global engineers find exact European equivalents for American ASTM/AISI or Japanese JIS grades.
Stainless steels are not subdivided further into quality and special grades within EN 10020 itself, as the various categories of stainless steel (austenitic, ferritic, martensitic, duplex, etc.) are defined in other product standards. en 10020 pdf
Understanding and applying EN 10020 is not merely an academic exercise; it has significant practical consequences across multiple industries.
According to EN 10020, steel is a material that, in terms of mass, contains . Furthermore: The carbon content (C) must generally be less than 2% . It must contain other elements.
Steels containing a minimum of 10.5% Chromium and a maximum of 1.2% Carbon by weight. They are characterized by their corrosion resistance. : These require more care during production
┌────────────────────────────────────────┐ │ EN 10020 │ │ Definition & Classification of Steel │ └───────────────────┬────────────────────┘ │ ┌────────────────────────────────┼────────────────────────────────┐ ▼ ▼ ▼ ┌────────────────┐ ┌────────────────┐ ┌────────────────┐ │ Non-Alloy │ │ Stainless │ │ Other Alloy │ │ Steels │ │ Steels │ │ Steels │ └───────┬────────┘ └───────┬────────┘ └───────┬────────┘ │ │ │ ┌─────┴────────┐ │ ┌─────┴────────┐ ▼ ▼ ▼ ▼ ▼ Non-Alloy Non-Alloy Stainless Alloy Alloy Quality Special Quality/ Quality Special Steels Steels Special Steels Steels Axis 1: Classification by Chemical Composition
EN 10020 does not exist in isolation. It is part of a family of European steel standards:
Primarily defined by corrosion resistance, heat resistance, or creep resistance. C. Other Alloy Steels How to Access the Official EN 10020 PDF
carbon, ensuring the material forms a protective, self-healing chromium oxide layer. 3. Other Alloy Steels
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Steels featuring higher purity than quality steels, often with precise control over non-metallic inclusions. They are typically intended for quenching and tempering or surface hardening. Stainless Steel Quality Classes:
Before EN 10020, different countries used disparate naming conventions and classification systems. A steel grade called "X5CrNi18-10" might have been classified differently in Germany (DIN), France (NF), or the UK (BS). EN 10020 harmonized this by providing a universal framework for defining what a "steel grade" actually is.