BS EN 4827:2024

This standard BS EN 4827:2024 Aerospace series. Hexavalent chromium free anodizing of aluminium and aluminium alloys is classified in these ICS categories:

• 49.040 Coatings and related processes used in aerospace industry
• 49.025.20 Aluminium

This document specifies the requirements for hexavalent chromium free anodizing of aluminium and aluminium alloys for corrosion protection, bonding and painting. This document does not apply to hard anodizing and plasma electrolytic anodizing (micro-arc oxidation). The purpose of this document is to give design, quality and manufacturing requirements. It does not give complete in-house process instructions; these are given in the processor's detailed process instructions.