G40 Galvanized Steel Sheet

Hot dip galvanized steel.

G40 galvanized steel sheet. They both fall under astm a 653 a 653m. The most common method of galvanizing steel is the hot dip galvanized process. G40 0 40 122 g60 0 60 183 g90 0 90 275 g115 1 15 351 g140 1 40 427 g165 1 65 504 g185 1 85 565. 2003 this entry appended to this thread by editor in lieu of spawning a duplicative thread.

G30 g40 g60 and g90. Understanding zinc based coating weights. 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. The number call out for both is the weight of the coating.

Evaluation of g60 vs g90 galvanizing with respect to cold formed metal framing studs in exterior wall construction and interior metal stud or other architectural components. A wide variety of g40 galvanized steel sheet options are available to you such as hot rolled. Hot dipped galvanized is produced to meet astm a 653 specifications general requirements for steel sheet zinc coated by the hot dip process. The inch pound term g40 a designator used only for hot dip galvanized sheet is defined by a 653 a 653m as total coating weight both sides.

In closer review of the tolerances allowed by astm the actual coating weight can be as low as 36 g m2 0 12 oz sf on a single side. The most commonly used coated sheet steel products in the metal building industry today are hot dip galvanized hdg 55 aluminum zinc alloy coated galvalume 1 coated steel hot dip galvannealed hdga zinc 5 aluminum alloy coated galfan 2 coated steel and type 2 aluminum coated steel. And galvanized designated with a g g40 g60. This issue is further confused by the adoption of unclear language in the trade.

The galvannealed is designated with an a a40 a60. It has approximately 0 23 oz ft2 70 g m2 of coating on each side of the strip if the coating is equally divided. You can also choose from bending cutting and decoiling g40 galvanized steel sheet as well as from astm g40 galvanized steel sheet and whether g40 galvanized steel sheet is container plate ship plate or boiler plate. 40 vs 60 now in reference to the number following the a or g refers to the amount of zinc represented in ounces per square foot or sometimes grams per square meter total both sides.

Hot dipped galvanized coatings. Also for use in sheet metal work directly exposed to the elements.