AS 1397:2021 pdf free.Continuous hot-dip metallic coated steel sheet and strip一Coatings of zinc and zinc alloyed with aluminium and magnesium.
AS 1397 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 Appndi&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.
NOTE 1 Advice and recommendations on information to be supplied by the purchaser at the time of enquiry or order are contained In AppendixA.
NOTE 2 The specified requirements apply to the full length and full width of the product supplied, unless otherwise indicated.
NOTE 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 applicable.
1.2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document.
NOTE Documents referenced for informative purposes are listed in the Bibliography. AS 1391, Metallic materials — Tensile testing of ambient temperature
AS 2331.2.1, Methods of test for metallic and related coatings, Method 2.1: Tests for average coating mass per unit area or for thickness — Dissolution methods — Strip and weigh, and analytical
1.3 Terms and definitions
For the purpose of this document, the following terms and definitions apply.
1.3.1 batch
identifiable amount of 50 t or less of one product type, i.e. of a particular thickness of steel grade, coating type and coating mass, processed sequentially under similar conditions
1.3.2 coating mass
total mass olcoating on both surfaces of the steel base, measured in grams per square metre of sheet or strip. In the case oldifferential coatings, the different surfaces are stated separately
Note ito entry: The coating thickness is not subject to specification as it depends upon the coating alloy density. which varies with composition. The approximate coating thickness for various coating classes is given in Table C.2 in Appendix C.
1.3.2.1 one surface single spot coating mass
minimum coating mass on any one surface of any one of the three specimens used for the triple spot test
1.3.2.2 single sided coating mass
<applicable for differential coatings> mass of coating on any one surface of the steel base, measured in grams per square metre of sheet or strip, based on the average of three specimens selected from a sample representing the original cross section of the sheet or strip
Note I to entry: See Table 3.6.
1.3.2.3 single spot coating mass
coating mass for one of the three specimens used for the triple spot coating mass test
1.3.2.4 triple spot coating mass
average coating mass of three specimens selected from a sample representing the original cross-section of the sheet or strip.AS 1397 pdf download.
Tags: Continuous hot-dip metallic coated steel sheet and strip
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