AS/NZS 4534:2006

Specifies requirements for the mass, quality and testing of zinc and zinc/aluminium alloy on steel wire. The coatings are applied in a continuous process and may be formed either by the application of molten metal or by electrodedeposition. Six coating mass classes are covered.

This Standard specifies requirements for the mass, quality and testing of zinc coatings and zinc/aluminium-alloy coatings on steel wire of circular or non-circular (shaped) cross-section. The coatings are applied in a continuous process and may be formed either by the application of molten metal or by electrodeposition.Six standard coating mass classes and a range of special coating mass classes are covered. The standard classes are intended, in general, for applications subjected to normal atmospheric corrosion conditions, whereas the special classes are specifically designed to provide acceptable durability under severe to extreme service conditions, such as for prolonged immersion in freshwater or seawater.This Standard applies to coatings on wire at its final size, whether or not the coating has been applied after final cold working, prior to cold working, or at an intermediate stage of cold working.Matters not relating to the coating itself are outside the scope of this Standard.This Standard does not apply to coatings on articles that have been fabricated from uncoated steel wire and which have subsequently been coated with zinc or zinc/aluminium alloy, except where the coating has been applied in a specialized continuous process (e.g. for wire netting) as opposed to batch treatment (e.g. for nails).NOTES:1 Advice and recommendations on information to be supplied by the purchaser at the time of enquiry or order are contained in Appendix A.2 Coatings in accordance with this Standard may not be available in every combination of wire size, coating mass class and coating type. Reference should be made to appropriate Australian Standards for the types of wire involved.3 Means for determining compliance with this Standard are given in Appendix B.4 Except as stated in this Clause, requirements for zinc coatings on manufactured wire articles, which have been electroplated following fabrication, are given in AS 1789.5 This Standard does not specify the Preece test for coating uniformity. If this test is required, arrangements should be made between the purchaser and the supplier.

Originated, in part, as part of AS K53.1-1934 and AS K53.2-1935.
Previous edition AS/NZS 4534:1998.
Second edition 2006.