ISO 16172:2018
(Main)Steel sheet, metallic-coated by the continuous hot-dip process for corrugated steel pipe
Steel sheet, metallic-coated by the continuous hot-dip process for corrugated steel pipe
This document is applicable to the minimum requirements for steel sheet used in the manufacture of corrugated steel pipe, in coils, flat cut lengths and corrugated cut lengths metallic-coated by the continuous hot-dip process. This product is intended for storm sewers, culverts, drains and similar uses. Several metallic-coated materials are covered, which relies on users to determine which product best serves their needs. Four different metallic coatings are included: — zinc coated; — zinc-5 % aluminium-mischmetal alloy coated; — 55 % aluminium-zinc alloy coated; — aluminium-silicon alloy coated.
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INTERNATIONAL ISO
STANDARD 16172
Third edition
2018-11
Steel sheet, metallic-coated by the
continuous hot-dip process for
corrugated steel pipe
Reference number
©
ISO 2018
© ISO 2018
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
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2018 – All rights reserved
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms, definitions and abbreviated terms . 1
3.1 Terms and definitions . 1
3.2 Abbreviated terms . 2
4 Condition of manufacture . 2
4.1 Chemical composition . 2
4.2 Mechanical properties . 2
4.3 Coating . 3
4.3.1 Coating mass. 3
4.3.2 Coating adherence . 3
4.4 Surface treatment . 3
5 Dimension and shape tolerances . 3
5.1 Thickness . 3
5.2 Length . 4
5.3 Flatness . 4
5.4 Other dimensions . 4
5.4.1 Corrugated configurations . 4
5.4.2 Corrugated sheet width . 4
5.5 Chemical composition . 5
5.6 Mechanical properties . 5
5.7 Coating tests . 5
5.7.1 Coating mass. 5
5.7.2 Triple-spot test . 5
5.7.3 Single-spot test . 5
6 Test methods . 5
6.1 Tensile tests . 5
6.2 Coating mass . 6
7 Resubmission . 6
8 Workmanship . 6
9 Inspection and acceptance . 6
10 Coil size . 6
11 Certification . 7
12 Marking . 7
13 Information to be supplied by the purchaser. 7
Bibliography . 9
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 of 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 www .iso
.org/iso/foreword .html.
This document was prepared by Technical Committee ISO/TC 17, Steel, Subcommittee SC 12, Continuous
mill flat rolled products.
This third edition cancels and replaces the second edition (ISO 16172:2011), which has been technically
revised. Tables and text have been updated for clarity.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www .iso .org/members .html.
iv © ISO 2018 – All rights reserved
INTERNATIONAL STANDARD ISO 16172:2018(E)
Steel sheet, metallic-coated by the continuous hot-dip
process for corrugated steel pipe
1 Scope
This document is applicable to the minimum requirements for steel sheet used in the manufacture
of corrugated steel pipe, in coils, flat cut lengths and corrugated cut lengths metallic-coated by the
continuous hot-dip process.
This product is intended for storm sewers, culverts, drains and similar uses.
Several metallic-coated materials are covered, which relies on users to determine which product best
serves their needs. Four different metallic coatings are included:
— zinc coated;
— zinc-5 % aluminium-mischmetal alloy coated;
— 55 % aluminium-zinc alloy coated;
— aluminium-silicon alloy coated.
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 1460, Metallic coatings — Hot dip galvanized coatings on ferrous materials — Gravimetric
determination of the mass per unit area
ISO 6892-1, Metallic materials — Tensile testing — Part 1: Method of test at room temperature
ISO 16163, Continuously hot-dipped coated steel sheet products — Dimensional and shape tolerances
3 Terms, definitions and abbreviated terms
For the purposes of this document, the following terms, definitions and abbreviated terms apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https: //www .iso .org/obp
— IEC Electropedia: available at http: //www .electropedia .org/
3.1 Terms and definitions
3.1.1
fabricator
organization that produces the finished pipe
3.1.2
manufacturer
organization that produces the metal sheet from which the pipe is made
3.1.3
purchaser
person or agency that purchases the finished pipe
Note 1 to entry: For the purposes of this document, the fabricator (3.1.1) may also be considered as the purchaser
of the sheet, where that term is used in this document. Such an interpretation does not restrict the purchaser of
finished pipe from enforcing any provisions of this specification.
3.1.4
lot
up to a specified quantity of steel sheet of the same thickness and coating condition
3.2 Abbreviated terms
Zn zinc
Zn-5Al-MM zinc-5 % aluminium-mischmetal alloy
55Al-Zn 55 % aluminium-zinc alloy
Al-Si aluminium-silicon alloy
4 Condition of manufacture
4.1 Chemical composition
The chemical composition (heat analysis and product analysis) of the base metal shall conform to the
requirements of Table 1.
Table 1 — Chemical composition
Mass fractions in per cent
Element Heat analysis Product analysis
Sulfur, max., % 0,05 0,06
Sum of carbon, manganese, phospho-
0,70 0,74
rus, sulfur and silicon, max., %
4.2 Mechanical properties
The mechanical properties of the base metal shall conform to the requirements of Table 2.
a
Table 2 — Mechanical properties of flat sheet prior to fabrication
Tensile requirements Limits
b
Tensile strength , min., MPa 310
b
Yield strength , min. MPa 230
c
Elongation, in 50 mm , min., % 20
a
To determine conformity with this specification, round each value for tensile strength and yield strength to the nearest
1 MPa and each value for elongation to the nearest 1 %.
b
Yield strength and tensile strength are based on the thickness of the base metal. If tests are made after coating,
determine the base metal thickness after stripping the
...
INTERNATIONAL ISO
STANDARD 16172
Third edition
2018-11
Steel sheet, metallic-coated by the
continuous hot-dip process for
corrugated steel pipe
Reference number
©
ISO 2018
© ISO 2018
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
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2018 – All rights reserved
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms, definitions and abbreviated terms . 1
3.1 Terms and definitions . 1
3.2 Abbreviated terms . 2
4 Condition of manufacture . 2
4.1 Chemical composition . 2
4.2 Mechanical properties . 2
4.3 Coating . 3
4.3.1 Coating mass. 3
4.3.2 Coating adherence . 3
4.4 Surface treatment . 3
5 Dimension and shape tolerances . 3
5.1 Thickness . 3
5.2 Length . 4
5.3 Flatness . 4
5.4 Other dimensions . 4
5.4.1 Corrugated configurations . 4
5.4.2 Corrugated sheet width . 4
5.5 Chemical composition . 5
5.6 Mechanical properties . 5
5.7 Coating tests . 5
5.7.1 Coating mass. 5
5.7.2 Triple-spot test . 5
5.7.3 Single-spot test . 5
6 Test methods . 5
6.1 Tensile tests . 5
6.2 Coating mass . 6
7 Resubmission . 6
8 Workmanship . 6
9 Inspection and acceptance . 6
10 Coil size . 6
11 Certification . 7
12 Marking . 7
13 Information to be supplied by the purchaser. 7
Bibliography . 9
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 of 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 www .iso
.org/iso/foreword .html.
This document was prepared by Technical Committee ISO/TC 17, Steel, Subcommittee SC 12, Continuous
mill flat rolled products.
This third edition cancels and replaces the second edition (ISO 16172:2011), which has been technically
revised. Tables and text have been updated for clarity.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www .iso .org/members .html.
iv © ISO 2018 – All rights reserved
INTERNATIONAL STANDARD ISO 16172:2018(E)
Steel sheet, metallic-coated by the continuous hot-dip
process for corrugated steel pipe
1 Scope
This document is applicable to the minimum requirements for steel sheet used in the manufacture
of corrugated steel pipe, in coils, flat cut lengths and corrugated cut lengths metallic-coated by the
continuous hot-dip process.
This product is intended for storm sewers, culverts, drains and similar uses.
Several metallic-coated materials are covered, which relies on users to determine which product best
serves their needs. Four different metallic coatings are included:
— zinc coated;
— zinc-5 % aluminium-mischmetal alloy coated;
— 55 % aluminium-zinc alloy coated;
— aluminium-silicon alloy coated.
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 1460, Metallic coatings — Hot dip galvanized coatings on ferrous materials — Gravimetric
determination of the mass per unit area
ISO 6892-1, Metallic materials — Tensile testing — Part 1: Method of test at room temperature
ISO 16163, Continuously hot-dipped coated steel sheet products — Dimensional and shape tolerances
3 Terms, definitions and abbreviated terms
For the purposes of this document, the following terms, definitions and abbreviated terms apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https: //www .iso .org/obp
— IEC Electropedia: available at http: //www .electropedia .org/
3.1 Terms and definitions
3.1.1
fabricator
organization that produces the finished pipe
3.1.2
manufacturer
organization that produces the metal sheet from which the pipe is made
3.1.3
purchaser
person or agency that purchases the finished pipe
Note 1 to entry: For the purposes of this document, the fabricator (3.1.1) may also be considered as the purchaser
of the sheet, where that term is used in this document. Such an interpretation does not restrict the purchaser of
finished pipe from enforcing any provisions of this specification.
3.1.4
lot
up to a specified quantity of steel sheet of the same thickness and coating condition
3.2 Abbreviated terms
Zn zinc
Zn-5Al-MM zinc-5 % aluminium-mischmetal alloy
55Al-Zn 55 % aluminium-zinc alloy
Al-Si aluminium-silicon alloy
4 Condition of manufacture
4.1 Chemical composition
The chemical composition (heat analysis and product analysis) of the base metal shall conform to the
requirements of Table 1.
Table 1 — Chemical composition
Mass fractions in per cent
Element Heat analysis Product analysis
Sulfur, max., % 0,05 0,06
Sum of carbon, manganese, phospho-
0,70 0,74
rus, sulfur and silicon, max., %
4.2 Mechanical properties
The mechanical properties of the base metal shall conform to the requirements of Table 2.
a
Table 2 — Mechanical properties of flat sheet prior to fabrication
Tensile requirements Limits
b
Tensile strength , min., MPa 310
b
Yield strength , min. MPa 230
c
Elongation, in 50 mm , min., % 20
a
To determine conformity with this specification, round each value for tensile strength and yield strength to the nearest
1 MPa and each value for elongation to the nearest 1 %.
b
Yield strength and tensile strength are based on the thickness of the base metal. If tests are made after coating,
determine the base metal thickness after stripping the
...
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