Galvanized Sheet Metal G60 G90
Bf 36 Cellular Metal Roof Decking 1 1 2 Depth 36 Coverage 5 To 12 Optimal Span S Standard G60 Galv Galvanized Metal Roof Metal Roof Perforated Metal
Bh 36 Metal Decking 1 5 Depth 36 Coverage 5 To 12 Optimal Span S Standard G60 Galvanized G90 Available Exc Metal Floor Concrete Deck Metal Deck
2w 36 Metal Decking 2 Depth 36 Coverage 8 To 14 Optimal Span S Standard G60 Galvanized G90 Available Good Dia Metal Floor Steel Deck Metal Deck
3w 36 Metal Decking 3 Depth 36 Coverage 11 To 20 Optimal Span S Standard G60 Galvanized G90 Available Good Di Metal Floor Steel Deck Metal Deck
Strong Drive Scn Smooth Shank Connector Nail 1 1 2 Inch X 0 131 Inch Hdg 1 Lb Galvanized Nails Hot Dip Galvanized
Aluminum Material High Quality Aluminum Strip Wood
Others available upon request.
Galvanized sheet metal g60 g90. If it is for outdoor use or in a high moisture environment i would always specify g90 just because it seems to make a difference over time. The a coatings have a dull gray color with no spangle while the g coatings are bright shiny and can have various sized spangle visible. I hope this helps. Deep drawing steel and extra deep drawing steel are designations described in the astm specifications for steel sheet zinc coated galvanized or zinc iron alloy coated galvannealed by.
Hot dip galvanizing is the process of coating iron or steel with a thin zinc layer by passing the steel through a molten bath of zinc at a temperature of around 860 f 460 c. 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. The g90 would be more galvanized coating than say g60. This specification is for hot dip galvanizing steel sheet using the continuous high speed galvanizing process.
First of all g90 is not a galvanizing specification. G90 galvanized steel has a longer service life than g60 g40 and g30 galvanized steel because g90 galvanized steel has a heavier coating weight of zinc applied to it at 0 90 oz ft 2 as opposed to g60 galvanized steel at 060 ox ft 2 and so on. Hot dip galvanized steel. The corrosion resistance of the g type is directly related to the amount of zinc coating i e g90 will resist corrosion to the base metal longer than g30.
Galvannealed steel results from the dual process of galvanizing and annealing the steel. G60 0 60 183 g90 0 90 275 g115 1 15 351 g140 1 40 427 g165 1 65 504 g185 1 85 565 g210 2 10 641. It is a coating thickness designation in the galvanizing specification astm a653.
