Corrosion protection for cold‐formed structural steel elements

Unprotected steel and structures exposed to the atmosphere inevitably corrode. For thin-gauged especially, corrosion is critical for stability. Although reduction in thickness caused by insignificant some structures, other unacceptable. Therefore, protection a crucial issue industry. Over last decades, many new systems innovative products have been introduced onto market. Corrosion cold-formed structural elements has standardized through introduction of EN 1090-4. This paper introduces harmonized rules loadbearing structures. The zinc-magnesium-aluminium (ZM) metal coating system developed recent years also dealt with.