EN 10020 defines stainless as ≥10.5% Cr. It does not guarantee corrosion resistance in all environments. This is a common point of legal confusion.
Elements like Chromium (Cr), Nickel (Ni), and Molybdenum (Mo) have very low maximum thresholds (e.g., 0.30% for Cr). 2. Stainless Steels en 10020 pdf
Includes electrical steels, alloyed steels for rails, and certain flat-rolled products. Alloy Special Steels: EN 10020 defines stainless as ≥10
A subgroup of alloy steels with at least and ≤ 1.2% carbon. Includes: alloyed steels for rails
, which covers the actual naming (designation) system for these steels. : Ensure you are looking at the current EN 10020:2000
Steels with at least 10.5% chromium and a maximum of 1.2% carbon.