AlZnSi Alloy / Galvalume
Galvalume alloy consists of approximately 55% Al, 43% Zn and 1.5% Si
Zinc plating is a widely used metallic coating for corrosion protection of steel, providing a very good combination of galvanic and barrier protection. However, in order to achieve a longer product life, an alloy known commercially as Galvalume alloy (AlZnSi alloy) has been developed, which is used for coating steel, just like Zinc.
This steel coating product offers a better physical barrier than standard galvanized coatings and offers better corrosion resistance in most environments, including temperatures up to 750 degrees F.
Galvalume Chemical Analysis
|Analysis ( %)||Galvalume /AlZnSi|
|Al||55 – 58|
|Zn||41 – 43|
|Si||1.5 – 2|