Also known as galvalume or zincalume steel, aluzinc steel is a form of cold-rolled galvanized steel with a metal coating composed of 55% aluminum,

 43% zinc, and 1.6% silicon. Its unique composition gives aluzinc steel some distinctive features by the combination of the physical protection and high durability 

of aluminum and the electrochemical protection of zinc.

Corrosion Resistance: Aluzinc steel coils are more corrosion-resistant than standard galvanized steel coils. The aluminum in the coating acts as a protective barrier,

 while the zinc acts as a sacrificial layer, adding an extra layer of corrosion resistance.
High Heat Resistance: Aluzinc steel coils have extremely high heat resistance, allowing them to survive high temperatures without major structural changes.
Formability and Machinability: Aluzinc steel coils have extremely high formability and are easily formed without cracking or breaking.

 This property makes them suitable for a variety of production procedures, such as bending, roll forming, and stamping.