weight pound designation
The designation system for coating weight (mass) is given in ASTM Standard A 792/A 792M. The three Inch-Pound coating weight designations (ordered as A 792) are, in oz/ft 2: AZ50 AZ55 AZ60 These designators are comparable to those used for galvanized in that the dimensions are oz /ft 2.he commonInch-Pound coating weightdesignat ions (ordered as A 653)for galvannealed product are, in oz/ft 2: A25 A40 A60 As with the galvanized product designators, A40 for example requires a minimum coating weight of 0.40 oz/ft 2.