Zincalume

" ZINCALUME "  is a brand of steel sheet produced by Blue Scope Steel spun off from BHP Billiton. It has a zinc/aluminium alloy coating on both sides, comes in various profiles including corrugated and is promoted as being corrosion resistant up to four times the life of galvanised steel.  

WIKIPEDIA ENTRY FOR ZINCALUME

BLUESTEEL ENTRY FOR ZINCALUME

Zincalume Picture    Zincalume 1 Picture