If equally applied to both sides of the sheet there would be a minimum of 0 45 ounces on each surface.
G90 galvanized sheet metal weight.
16 gauge 14 gauge 1 8 and 1 4.
That is for g90 the coating on one square foot of sheet total coating both sides of the sheet weighs a minimum of 0 90 ounces.
Designation system is given in terms such as g60 g90 etc.
When exposed to the atmosphere pure zinc reacts with oxygen to form zinc oxide which further reacts with carbon dioxide to form zinc carbonate a dull grey fairly strong material that stops further.
Batch galvanizing coating specifications are given in weight per surface area.
The galvanized sheet coating parameters relate to the total for both sides of the sheet.
Taking g90 as an example the coating weight on one square foot of sheet total both sides of the sheet shall have a triple spot test tst average minimum of 0 90 ounces.
48 oz 24 oz 20 oz and 16 oz.
26 gauge 24 gauge 20 gauge 18 gauge 16 gauge 14 gauge 1 8 and 1 4.
24 gauge 20 gauge 18 gauge and 16 gauge.
Sheet steel galvanized steel stainless steel aluminum strip tubing inches gauge decimal inches weight lb ft 2 gauge decimal inches weight lb ft 2 gauge decimal inches weight lb ft 2 gauge decimal inches weight lb ft 2 gauge decimal inches 44.
These numbers refer to the weight mass in si units of zinc on the surface of the steel sheet in inch pound english or imperial units of measurement.
Kynar galvalume steel for metal roofing and gutters.