Hot-dip galvanized and zinc-aluminium coated high tensile steel wire for bridge cables -- Specifications

This document specifies the requirements for hot-dip galvanized (hereinafter referred to as zinc coated) and zinc-aluminium coated high tensile wires, which are widely used in parallel wire cables or semi-parallel wire cables for suspension bridges, stay bridges and other structures involving the use of parallel wires.

Fils d’acier à haut carbone galvanisés ou revêtus de zinc-aluminium pour câbles de ponts -- Spécifications

General Information

Status
Published
Publication Date
17-May-2018
Current Stage
6060 - International Standard published
Start Date
20-Apr-2018
Completion Date
18-May-2018
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ISO 19203:2018 - Hot-dip galvanized and zinc-aluminium coated high tensile steel wire for bridge cables -- Specifications
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INTERNATIONAL ISO
STANDARD 19203
First edition
2018-05
Hot-dip galvanized and zinc-
aluminium coated high tensile
steel wire for bridge cables —
Specifications
Fils d’acier à haut carbone galvanisés ou revêtus de zinc-aluminium
pour câbles de ponts — Spécifications
Reference number
ISO 19203:2018(E)
ISO 2018
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ISO 19203:2018(E)
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© ISO 2018

All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may

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Published in Switzerland
ii © ISO 2018 – All rights reserved
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ISO 19203:2018(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 1

4 Symbols .......................................................................................................................................................................................................................... 3

5 Designation of the product ........................................................................................................................................................................ 3

6 Information needed by the manufacturer ................................................................................................................................. 4

7 Requirements .......................................................................................................................................................................................................... 4

7.1 Materials and manufacture .......................................................................................................................................................... 4

7.2 Standard properties ............................................................................................................................................................................ 4

7.2.1 Geometrical properties .............................................................................................................................................. 4

7.2.2 Straightness .......................................................................................................................................................................... 5

7.2.3 Mechanical and coating properties .................................................................................................................. 5

7.2.4 Appearance ........................................................................................................................................................................... 6

7.3 Special properties ................................................................................................................................................................................. 6

7.4 Traceability ................................................................................................................................................................................................ 6

8 Inspection .................................................................................................................................................................................................................... 7

8.1 Inspection and inspection documents ................................................................................................................................ 7

8.2 Number of samples and test pieces ...................................................................................................................................... 7

8.3 Evaluation of test results ................................................................................................................................................................ 7

8.4 Sorting and reprocessing ............................................................................................................................................................... 8

9 Test methods ............................................................................................................................................................................................................. 8

9.1 Testing of standard properties .................................................................................................................................................. 8

9.1.1 Measurement of geometrical characteristics .......................................................................................... 8

9.1.2 Tensile test ............................................................................................................................................................................ 8

9.1.3 Elasticity modulus test ............................................................................................................................................... 8

9.1.4 Torsion test ........................................................................................................................................................................... 8

9.1.5 Ductility wrapping test ............................................................................................................................................... 8

9.1.6 Mass of coating .................................................................................................................................................................. 8

9.1.7 Adhesive of coating ........................................................................................................................................................ 9

9.1.8 Surface quality ................................................................................................................................................................... 9

9.2 Testing of special properties ....................................................................................................................................................... 9

9.2.1 Uniformity of zinc or zinc-aluminium coating (dipping test) ................................................... 9

9.2.2 Corrosion resistance test .......................................................................................................................................... 9

9.2.3 Axial force fatigue test ................................................................................................................................................. 9

9.2.4 Isothermal stress relaxation test ....................................................................................................................... 9

10 Delivery conditions ............................................................................................................................................................................................ 9

10.1 Identification ............................................................................................................................................................................................ 9

10.2 Coil dimensions ...................................................................................................................................................................................... 9

10.3 Coil weight ...............................................................................................................................................................................................10

10.4 Transport and storage ...................................................................................................................................................................10

Annex A (normative) Additional test methods — Axial force fatigue test ..................................................................11

Annex B (normative) Additional test methods — Isothermal stress relaxation test ......................................12

Annex C (informative) Calculation of the density of steel wire and diameter of bare steel wire .......13

© ISO 2018 – All rights reserved iii
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ISO 19203:2018(E)
Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards

bodies (ISO member bodies). The work of preparing International Standards is normally carried out

through ISO technical committees. Each member body interested in a subject for which a technical

committee has been established has the right to be represented on that committee. International

organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.

ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of

electrotechnical standardization.

The procedures used to develop this document and those intended for its further maintenance are

described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the

different types of ISO documents should be noted. This document was drafted in accordance with the

editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/directives).

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of

any patent rights identified during the development of the document will be in the Introduction and/or

on the ISO list of patent declarations received (see www .iso .org/patents).

Any trade name used in this document is information given for the convenience of users and does not

constitute an endorsement.

For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and

expressions related to conformity assessment, as well as information about ISO's adherence to the

World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following

URL: www .iso .org/iso/foreword .html.

This document was prepared by Technical Committee ISO/TC 17, Steel, Subcommittee SC 17, Steel wire

rod and wire products.
iv © ISO 2018 – All rights reserved
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INTERNATIONAL STANDARD ISO 19203:2018(E)
Hot-dip galvanized and zinc-aluminium coated high tensile
steel wire for bridge cables — Specifications
1 Scope

This document specifies the requirements for hot-dip galvanized (hereinafter referred to as zinc

coated) and zinc-aluminium coated high tensile wires, which are widely used in parallel wire cables or

semi-parallel wire cables for suspension bridges, stay bridges and other structures involving the use of

parallel wires.
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. For dated references, only the edition cited applies. For

undated references, the latest edition of the referenced document (including any amendments) applies.

ISO 752:2004, Zinc ingots

ISO 6892-1, Metallic materials — Tensile testing — Part 1: Method of test at room temperature

ISO 7800, Metallic materials — Wire — Simple torsion test
ISO 7802, Metallic materials — Wire — Wrapping test

ISO 7989-2, Steel wire and wire products — Non-ferrous metallic coatings on steel wire — Part 2: Zinc or

zinc-alloy coating
ISO 9227, Corrosion tests in artificial atmospheres — Salt spray tests
ISO 10474:2013, Steel and steel products — Inspection documents

ISO 15630-3:2010, Steel for the reinforcement and prestressing of concrete — Test methods — Part 3:

Prestressing steel

ISO 16120-1, Non-alloy steel wire rod for conversion to wire — Part 1: General requirements

ISO 16120-4, Non-alloy steel wire rod for conversion to wire — Part 4: Specific requirements for wire rod

for special applications

ISO 22034-2, Steel wire and wire products — Part 2: Tolerances on wire dimensions

ASTM B 997, Standard specification for Zinc-Aluminum alloy in ingot form for hot-dip coatings

3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— IEC Electropedia: available at https: //www .electropedia .org/
— ISO Online browsing platform: available at https: //www .iso .org/obp
3.1
wire rod

hot rolled steel delivered in coils, used for cold working treatments such as wire drawing

© ISO 2018 – All rights reserved 1
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ISO 19203:2018(E)
3.2
bare steel wire

product manufactured by cold working wire rod (3.1) that is in a suitable metallurgical condition for

cold working
3.3
hot-dip zinc coated steel wire
hot-dip galvanized coated steel wire
steel wire that is coated with zinc in a bath of molten zinc
3.4
zinc-aluminium coated steel wire

steel wire that is coated with zinc-aluminium alloy in a bath of molten zinc-aluminium alloy

Note 1 to entry: In this document, “steel wire” or “wire” refers to zinc or zinc-aluminium coated steel wire, unless

otherwise specified.
3.5
stabilized wire
steel wire that is given a final thermo-mechanical treatment
3.6
out-of-round

arithmetic difference between the maximum and minimum diameters of the steel wire at the same

cross section
3.7
semi-parallel wire cable
specified number of steel wires bundled together with a maximum lay angle of 4°

Note 1 to entry: Semi-parallel wire cables are usually used for cable stayed bridge and suspenders for suspension

and arch bridges.
3.8
unit of manufacture
coil of steel wire produced from one coil of wire rod (3.1)
3.9
unit of product
coil of steel wire delivered to a customer

Note 1 to entry: The unit of product is either the unit of manufacture (3.8) or a smaller coil cut from a unit of

manufacture.
3.10
unit of inspection

quantity of product presented at any one time for examination and release purposes

3.11
inspection

conformity evaluation by observation and judgement accompanied as appropriate by measurement,

testing or gauging
3.12
factory production control
permanent internal production control exercised by the manufacturer
3.13
standard property

property prescribed as part of factory production control (3.12) requirements for every unit of

inspection (3.10)
2 © ISO 2018 – All rights reserved
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ISO 19203:2018(E)
3.14
special property

property prescribed that are not determined as part of factory production control (3.12) requirements

3.15
maximum
value which no test result shall exceed
3.16
minimum
value below which no test result shall fall
3.17
unit heat of steel

quantity of steel corresponding to the same single melting operation identified by a single number so

designated by the steel manufacturer(s)
4 Symbols
Symbol Unit Designation Reference
A % percentage of elongation after fracture 7.2.3
d mm nominal diameter of the steel wire 7.2, 7.3, Annex A, Annex C
E GPa modulus of elasticity 7.2.3, 9.1.3
ε — value of the strain for a force equal to x 9.1.3
minimum ultimate tensile force (or guaranteed
Fm KN 9.1.3
ultimate tensile force), Fm = R × Sn
F KN fluctuating force range in the axial load fatigue test 7.3
h mm bow height in the plane of bow 7.2
R MPa ultimate tensile strength 7.2, 7.3
L mm gauge length (without force on the test piece) 7.2, 9.1.2
R MPa 0,2 % offset proof strength 7.2
p0,2
Sn mm nominal cross sectional area of the s
...

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