Zinc-coated steel

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Archived

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Core Supplement

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Abstract

Zinc corrodes slowly relative to steel because a protective film is formed on its surface. In most atmospheres and many waters, the average rate of attack is about one twenty-fifth that of steel but the rate will vary considerably according to the duration of exposure and the environment. A zinc coating protects steel galvanically and, because it is more electronegative than steel when electrically connected, it provides sacrificial protection. These properties have led to the extensive use of zinc as a protective coating for steel.

History

Whilst this publication can still be purchased some of the information in it has been superseded by more recent research and standards. The BRE Group does not accept any responsibility whatsoever for any loss or damage, including - without limitation - indirect or consequential loss or damage arising from use, or loss of use, of data or profits arising out of, or in connection with, the use of this document.

Subjects

• Coverings and surface finishes
• Materials
• Metal sections/other items
• Steel
• Surface finishes
• Metallic coatings

Publisher History

BRE is a building science centre that generates new knowledge through research. This is used to create products, tools and standards that drive positive change across the built environment. BRE helps its government and private sector clients meet the significant environmental, social and economic challenges they face in delivering homes, buildings and communities. BRE is owned by the BRE Trust, a registered charity. The Trust uses the profits made by the BRE companies to fund research and education that advances knowledge of the built environment.