AS 1397-2011 Continuous hot-dip metallic coated steel sheet and strip - Coatings of zinc and zinc alloyed with aluminium and magnesium
Standards Australia
Supersedes: AS 1397-2001 Steel sheet and strip - Hot-dipped zinc-coated or aluminium/zinc-coated
Draft Designation: DR AS 1397This Standard incorporates Amendment No. 1 (October 2012). The changes required by the Amendment are indicated in the text by a marginal bar and amendment number against the clause, note, table, figure or part thereof affected.
After consultation with stakeholders in both countries, Standards Australia and Standards New Zealand decided to develop this Standard as an Australian Standard rather than an Australian/New Zealand Standard.
This Standard upgrades the requirements of AS 1397—2001 and introduces three new coating types:
(a) Zinc and aluminium (Type ZA).
(b) Zinc, aluminium and magnesium (Type ZM).
(c) Aluminium, zinc and magnesium (Type AM).
Committee MT-001 has sought to align with the following international and national Standards, where applicable:
ISO 9364:2006, Continuous hot-dip aluminium/zinc-coated steel sheet of commercial, drawing and structural qualities
ISO 4998:2011, Continuous hot-dip zinc-coated carbon steel sheet of structural quality
ISO 3575:2011, Continuous hot-dip zinc-coated carbon steel sheet of commercial and drawing qualities
ASTM A1046/A1046M-10a, Specification for steel sheet, zinc-aluminium-magnesium alloy-coated by the hot-dip process
ASTM A902-09, Terminology relating to metallic coated steel products
ASTM A875/875M-09a, Specification for steel sheet, zinc-5% aluminium alloy-coated by the hot-dip process
The terms ‘normative’ and ‘informative’ have been used in this Standard to define the application of the appendix to which they apply. A ‘normative’ appendix is an integral part of a Standard, whereas an ‘informative’ appendix is only for information and guidance.
Originated as part of AS A20-1934. Previous edition AS1397-2001. Sixth edition 2011. Reissued incorporating Amendment No. 1 (October 2012).
This Standard specifies requirements for continuously hot-dip metallic coated sheet steel and strip supplied in thicknesses up to and including 5.0 mm.
Requirements for product conformity to this Standard are given in Appendix B.
Requirements covered in this Standard are as follows:
(a) Formability grades of steel.
(b) Structural grades of steel.
(c) Classes of zinc coating, including differential coatings.
(d) Classes of zinc coating converted to zinc/iron alloy.
(e) Classes of zinc/aluminium coatings.
(f) Classes of zinc/aluminium/magnesium alloy coating.
(g) Classes of aluminium/zinc alloy coating.
(h) Classes of aluminium/zinc/magnesium alloy coating.
(i) Surface finish.
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: The specified requirements apply to the full length and full width of the product supplied, unless otherwise indicated.
3: Within the description of the classes of coatings, the majority element present is listed first, followed by the next major element and followed by a third element if appropriate.
Contents:
Section 1 Scope And General
Section 2 The Steel Base
Section 3 The Coating
Appendix A: Purchasing Guidelines
Appendix B: Product Conformity
Appendix C: Information On Coating Thickness Determination And On The Thickness/Mass Relationship Between Base Steel And Coating
Appendix D: Information And Guidelines On The Selection Of Steel Grades And Coating Classes
Iron and Steel.
MT-001
Australian Building Codes Board; Australasian Corrosion Association; Australian Foundry Institute; Australian Institute of Architects; Australian Steel Association; Australian Steel Institute; Bureau of Steel Manufacturers of Australia; Materials Australia; New Zealand Heavy Engineering Research Association; Society of Automotive Engineers—Australasia; The University of Sydney.
