Aluzinc®: aluminium-zinc coating
Aluzinc® is a steel substrate coated on both sides with an aluminium-zinc alloy. The composition of the coating is: 55% aluminium, 43.4% zinc and 1.6% silicon.
The excellent corrosion resistance of Aluzinc® is a result of the properties of the two metallic substances: the barrier effect of the aluminium present on the surface of the coating and the sacrificial protection of zinc.
Thanks to a thin transparent layer of aluminium oxides on the top surface of the coating, this appearance is preserved when aging.
Aluzinc® offers additional advantages:
- Good corrosion resistance at high temperatures
- Good abrasion resistance because of its surface hardness
- Excellent thermal and light reflectivity
Aluzinc® Florelis is an Aluzinc® based material (55% Al, 43.5% Zn) with a guaranteed number of spangles (minimum 1000 per dm2 / maximum 1800 per dm2). Aluzinc® Florelis used with a coating thickness of AZ185 and comes with a warranty of 25 years.
Aluzinc® HFX (High Formability eXtended) is a metallic coating combining the excellent corrosion resistance of conventional Aluzinc® with high formability properties, which makes it specially suitable for standing seem roofs.
Aluzinc® can be supplied oiled and/or with a chemical surface conversion, or with an Easyfilm® thin organic coating.
Aluzinc® Technical data sheet
ArcelorMittal Flat Carbon Europe offers a 25 year product warranty for Aluzinc®
New Aluzinc® warranty: up to 25 years