HOT DIP GALVANIZED (HDG) FLAT BAR

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HOT DIP GALVANIZED (HDG) FLAT BAR

Hot-dip galvanizing is the process of coating iron or steel with a thin zinc layer, bypassing 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 corrosion in many circumstances, protecting the steel below from the elements. 

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