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gloria
等级:Senior
文章:883
积分:7295
门派:China
注册:2007-2-26 16:39:03 |
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 galvanizing steel -14
14. How long will hot-dip galvanizing protect my steel from corrosion?
The corrosion rate of zinc and how long it will provide protection is a function of the coating thickness and the amount of corrosive elements in the atmosphere. For example, in rural settings where there is less automotive/truck exhaust and plant emissions, galvanized steel can easily last for 100 - 150 years without maintenance. Industrial and marine locations contain significantly more aggressive corrosion elements such as chlorides and sulfides and galvanized steel may last for 50 - 100 years in those cases. The relationship between coating thickness and atmospheric conditions is contained in a popular graph developed by the AGA. Please see the publication Hot-Dip Galvanizing for Corrosion Protection: A Specifier's Guide on this web site. |
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