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Compatibility of Direct Contact between Metals or Alloys
last updated 23/06/15
Summary of this page:
Cladding Material
Accessory/Fastener Material
Stainless Steel (300 Series) Zinc-Coated Steel and Zinc Zinc/
Aluminium coated steel
Aluminium Copper & Brass Lead Monel Carbon Black***
Zinc-coated steel & zinc No Yes Yes* Yes* No Yes** No No
Zinc/Aluminium coated steel No Yes* Yes Yes No No No No
COLORBOND® steel No Yes* Yes Yes No No No No
COLORBOND® Metallic No Yes* Yes Yes No No No No
COLORBOND® Ultra No Yes* Yes Yes No No No No
COLORBOND® Stainless Yes No No No No No No No

Key:
* Inert catchment situation may apply. (See Technical Bulletin TB 15)
** Not recommended for severe environments.
*** As found in some washers, roof penetration flashings and black "lead" pencils etc.

Compatibility of Direct Contact between Metals or Alloys table extracted from BlueScope Steel Limited's "Corrosion Technical Bulletin CTB12 - Dissimilar Materials" pdf document and is subject to the terms and conditions contained within this document.

Find out more about dissimilar metals


Resource Acknowledgements
Source: BlueScope Steel Limited, Corrosion Technical Bulletin CTB-12 Dissimilar Metals

Publication Details: Rev 3, November 2003

Authors Disclaimers: The information and advice contained in this Bulletin is of a general nature only, and has not been prepared with your specific needs in mind. You should always obtain specialist advice to ensure that the materials, approach and techniques referred to in this Bulletin meet your specific requirements. BlueScope Steel Limited makes no warranty as to the accuracy, completeness or reliability of any estimates, opinions or other information contained in this Bulletin, and to the maximum extent permitted by law, BlueScope Steel Limited disclaims all liability and responsibility for any loss or damage, direct or indirect, which may be suffered by any person acting in reliance on anything contained in or omitted from this document.

Trademark Acknowledgements: ZINCALUME®, COLORBOND® and ZINCFORM® are registered trade marks of BlueScope Steel Limited. BlueScope is a trade mark of BlueScope Steel Limited.
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