AS 5056-2006

Specifies requirements for a coating of zinc mechanically deposited on iron and steel substrates.

This Standard specifies the requirements for powder metal coatings or composites coatings mechanically deposited on iron or steel substrates.The coating service condition number (see Table 1) correlates to the corrosion category environments, which are specified in AS/NZS 2312 and ISO 9223.Mechanical deposition greatly reduces the risk of hydrogen embrittlement, (though this Standard does specify hydrogen embrittlement treatments in Appendix C) and is suitable for coating bores and recesses in many parts that cannot be conveniently electroplated.NOTES: 1 For means of demonstrating compliance to this Standard, see Appendix B.2 Guidance on the maintenance of mechanically coated articles is shown in Appendix D.3 This Standard does not purport to address all of the safety concerns, if any, associated with mechanical plating. It is the responsibility of the user of this Standard to establish appropriate safety and health practices and determine the applicability of regulation limitations. This Standard does not specify requirements for the surface condition of the basis iron or steel before mechanical coating with powdered metal and composites. However, Appendix A requires that the mechanical plater be informed of surface condition requirements. This may be achieved by reference to AS 1627.0, which provides specifications for surface conditions on metals. Other requirements may be illustrated by provision of acceptable type samples.

First published as AS 5056-2006.