G90 Galvanized Steel Sheet

Of zinc per square foot.

G90 galvanized steel sheet. Galvanized steel sheet plates are intended for use where greater corrosion protection is required without painting a lower cost alternative to stainless steel galvanized sheet and plates have a rust free protection for up to 30 years while maintaining strength with a durable surface coating. Alro stocks commercial quality lock form quality g 90 coating weight. Standard mill sizes for galvanized g90 flat sheet range from 28 gauge 018 thick all the way up to 8 gauge 1681 thick. 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.

Suitable for exterior applications. Quality metals is the leader in galvanized sheet metal suppliers and we carry domestic g30 and g90 galvanized steel in rohs ctd for all gauges and sizes. Other sizes may be available. Please note all items are subject to availability.

This is achieved through a multi step process where a steel sheet is immersed in pure molten zinc at a very high temperature bonding the zinc to the steel. Our material comes from the only best domestic sources for min spangle and extra smooth material. The aluminum is added to improve the adhesion between the coating and the steel substrate during formation. Galvanized steel is essentially pure zinc with a very small percentage of aluminum.

It is a coating thickness designation in the galvanizing specification astm a653. These coating weights are a total for both sides of the strip. 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. G90 first of all g90 is not a galvanizing specification.

G 90 and g 140 are coating designations for galvanized steel. Metals depot stocks many sizes in precut sizes full mill sizes or we can hot dip virtually any. This gives the steel excellent corrosion resistance. G90 galvanized steel sheet astm a527 a653 galvanized steel sheets are intended for usewhere greater corrosion protection is required without painting.

15 reardon road medford ma 02155 tel. Custom architectural sheet metal fabrication our craftsmen are copper and zinc specialists. 781 396 0070 fax. For example g 90 designates a zinc coating of 90 oz square foot while g 140 designates a zinc coating of 1 40 oz square foot.

This specification is for hot dip galvanizing steel sheet using the continuous high speed galvanizing process. Contact your local metal supermarkets store to confirm availability and pricing. Sheet metal weight and gauge chart. G90 galvanized steel is hot dipped in zinc coated with a minimum 0 90 oz.