ISO 8353:2024
(Main)Steel sheet, zinc-aluminium-magnesium alloy-coated by the continuous hot-dip process, of commercial, drawing and structural qualities
Steel sheet, zinc-aluminium-magnesium alloy-coated by the continuous hot-dip process, of commercial, drawing and structural qualities
This document specifies the minimum requirements for steel sheet, in coils and cut lengths, metallic-coated by the continuous hot-dip process, with zinc-aluminium-magnesium alloy coating. The product is intended for applications requiring high corrosion resistance, formability and paintability. The steel sheet is produced in a number of quality designations and grades, coating type, coating mass, surface treatments and coating finish conditions designed to be compatible with differing application requirements.
Tôles en acier revêtues à chaud en continu d'alliage zinc-aluminium-magnésium de qualité commerciale, pour emboutissage ou destinées à la construction
General Information
Standards Content (Sample)
International
Standard
ISO 8353
First edition
Steel sheet, zinc-aluminium-
2024-12
magnesium alloy-coated by the
continuous hot-dip process, of
commercial, drawing and structural
qualities
Tôles en acier revêtues à chaud en continu d'alliage zinc-
aluminium-magnésium de qualité commerciale, pour
emboutissage ou destinées à la construction
Reference number
© ISO 2024
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii
Contents Page
Foreword .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Dimensions . 3
5 Conditions of manufacture . 3
5.1 Steelmaking .3
5.2 Chemical composition .3
5.3 Chemical analysis .3
5.3.1 Heat analysis .3
5.3.2 Product analysis .3
5.4 Mechanical properties .5
5.4.1 Commercial and drawing quality .5
5.4.2 Structural quality .6
5.5 Coating .7
5.5.1 Coating bath composition.7
5.5.2 Coating type designation and coating bath composition .7
5.5.3 Coating mass .8
5.5.4 Coating adherence.8
5.6 Weldability .9
5.7 Painting .9
5.8 Coating finish condition .9
5.9 Surface treatment .9
5.9.1 Mill passivation .9
5.9.2 Mill phosphating .10
5.9.3 Oiling .10
5.9.4 Thin organic film (or Sealing) .10
5.10 Coated coil joining .10
5.11 Dimensional and shape tolerances .10
6 Sampling . 10
6.1 Tensile test .10
6.2 Coating tests .10
6.2.1 Coating mass .10
6.2.2 Triple-spot test .11
6.2.3 Single-spot test .11
6.2.4 Coating adherence.11
7 Test methods .11
7.1 Tensile tests .11
7.2 Coating properties.11
7.2.1 Coating mass .11
7.2.2 Coating adherence.11
7.2.3 Test methods for coating bath composition .11
7.2.4 Coating corrosion resistance . . . 12
8 Designation system .12
8.1 General . 12
8.2 Coating type . 12
8.3 Coating mass . 12
8.4 Coating finish condition . 12
8.5 Surface treatment . 12
8.6 Base-metal quality . 13
8.7 Examples . 13
9 Retests . 14
iii
9.1 Machining and flaws . .14
9.2 Elongation .14
9.3 Additional tests .14
10 Resubmission. 14
11 Workmanship . 14
12 Inspection and acceptance . 14
13 Coil size .15
14 Marking . .15
15 Information to be supplied by the purchaser .15
Annex A (normative) Orders requiring base-metal thickness for T1 . 17
Annex B (normative) Orders requiring base-metal thickness for T2, T3, T4 and T5 . 19
Annex C (informative) Calculation of the coating density .20
Bibliography .21
iv
---------------------
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.