ISO/DIS 15177

Steel sheet, hot-rolled twin-roll cast, of commercial quality

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DRAFT INTERNATIONAL STANDARD
ISO/DIS 15177
ISO/TC 17/SC 12 Secretariat: ANSI
Voting begins on: Voting terminates on:
2019-12-24 2020-03-17
Steel sheet, hot-rolled twin-roll cast, of commercial quality
ICS: 77.140.50
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
This document is circulated as received from the committee secretariat.
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
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WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 15177:2019(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
PROVIDE SUPPORTING DOCUMENTATION. ISO 2019
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ISO/DIS 15177:2019(E)
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ii © ISO 2019 – All rights reserved
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ISO/DIS 15177:2019(E)
Contents Page

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

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

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

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

4 Dimensions ................................................................................................................................................................................................................. 2

5 Conditions of manufacture ........................................................................................................................................................................ 2

5.1 Steelmaking ............................................................................................................................................................................................... 2

5.2 Chemical composition ...................................................................................................................................................................... 2

5.3 Chemical analysis .................................................................................................................................................................................. 2

5.3.1 Heat analysis ...................................................................... .................................................................................................. 2

5.3.2 Product analysis ............................................................................................................................................................... 3

5.4 Mechanical properties ...................................................................................................................................................................... 3

5.5 Application ................................................................................................................................................................................................. 4

5.6 Weldability .................................................................................................................................................................................................. 4

5.7 Surface condition .................................................................................................................................................................................. 4

5.8 Oiling ................................................................................................................................................................................................................ 4

5.9 Skin passing ............................................................................................................................................................................................... 4

6 Dimensional and shape tolerances ................................................................................................................................................... 4

7 Tensile test sampling ....................................................................................................................................................................................... 4

8 Tensile test .................................................................................................................................................................................................................. 5

9 Retests ............................................................................................................................................................................................................................. 5

9.1 Machining and flaws........................................................................................................................................................................... 5

9.2 Elongation ................................................................................................................................................................................................... 5

9.3 Additional tests ....................................................................................................................................................................................... 5

10 Resubmission ........................................................................................................................................................................................................... 5

11 Workmanship .......................................................................................................................................................................................................... 5

12 Inspection and acceptance ......................................................................................................................................................................... 5

13 Coil size ........................................................................................................................................................................................................................... 6

14 Marking .......................................................................................................................................................................................................................... 6

15 Information to be supplied by the purchaser......................................................................................................................... 6

Bibliography ................................................................................................................................................................................................................................ 8

© ISO 2019 – All rights reserved iii
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ISO/DIS 15177:2019(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.

International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.

The main task of technical committees is to prepare International Standards. Draft International

Standards adopted by the technical committees are circulated to the member bodies for voting.

Publication as an International Standard requires approval by at least 75 % of the member bodies

casting a vote.

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.

ISO 15177 was prepared by Technical Committee ISO/TC 17, Steel, Subcommittee SC 12, Continuous mill

flat rolled products.
iv © ISO 2019 – All rights reserved
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DRAFT INTERNATIONAL STANDARD ISO/DIS 15177:2019(E)
Steel sheet, hot-rolled twin-roll cast, of commercial quality
1 Scope

This document specifies the requirements for hot-rolled twin-roll cast steel sheet of commercial quality.

The product is intended for many applications where the presence of oxide or scale or normal surface

imperfections disclosed after removal of oxide or scale, are not objectionable. It is not suitable for

applications where the surface is of prime importance.

NOTE This document does not cover steel sheet that is to be subjected to subsequent rolling.

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

ISO 16160, Hot-rolled steel sheet products — Dimensional and shape tolerances
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.

ISO and IEC maintain terminology 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
hot-rolled twin-roll cast steel sheet

product resulting from the twin-roll process to obtain the required sheet thickness and tolerances

3.2
hot-rolled descaled steel sheet

hot-rolled steel sheet from which oxide or scale has been removed, commonly by pickling in an acid

solution

Note 1 to entry: Descaling may also be performed by mechanical methods such as grit blasting. Some change in

properties can result from descaling.
3.3
skin pass
light cold rolling of hot-rolled steel sheet or hot-rolled descaled steel sheet.

Note 1 to entry: The purpose of the skin pass is to produce a higher degree of surface smoothness and thereby

improve the surface appearance. The shin pass also temporarily minimizes the occurrence of a surface condition

known as stretcher strain (Lüder’s Lines) or fluting during the fabrication of finished parts. The skin pass also

controls and improves flatness. Some increase in hardness and loss of ductility will result from skin passing.

© ISO 2019 – All
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