aluminium-zinc-alloy-coating
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aluminium/zinc alloy coating
Standards
a hot-dip coating of 50% to 60% aluminium, 1% to 2% silicon, with the remainder zinc, and incorporating less than 1% of minor additions of control elements. (Type AZ)
Source - AS 1397-2011: Coatings of zinc and zinc alloyed with aluminium and magnesium
HB50
<Type AZ> hot-dip coating composed of essentially 50% to 60% aluminium with the remainder zinc but incorporating minor additions of control element
A Type AZ coating is normally provided with a chromate passivation treatment in conjunction with a thin clear organic coating, not oiled.