Carbon steel wire for bedding and seating springs

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ISO/DIS 23213 - Carbon steel wire for bedding and seating springs
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DRAFT INTERNATIONAL STANDARD
ISO/DIS 23213
ISO/TC 17/SC 17 Secretariat: SAC
Voting begins on: Voting terminates on:
2021-03-31 2021-06-23
Carbon steel wire for bedding and seating springs
ICS: 77.140.25
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
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 23213:2021(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 2021
---------------------- Page: 1 ----------------------
ISO/DIS 23213:2021(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2021

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.
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Published in Switzerland
ii © ISO 2021 – All rights reserved
---------------------- Page: 2 ----------------------
ISO/DIS 23213:2021(E)
Contents Page

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

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

2 Normative References ..................................................................................................................................................................................... 1

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

4 Classfication and marking .......................................................................................................................................................................... 2

4.1 Classification ............................................................................................................................................................................................. 2

4.2 Marking ......................................................................................................................................................................................................... 2

5 Information to be supplied by the purchaser......................................................................................................................... 2

6 Requirements .......................................................................................................................................................................................................... 3

6.1 Diameter, Appearance, Coil weight ........................................................................................................................................ 3

6.1.1 Diameter range .................................................................................................................................................................. 3

6.1.2 Diameter and tolerance.............................................................................................................................................. 3

6.1.3 Ovality ....................................................................................................................................................................................... 3

6.1.4 Cast .............................................................................................................................................................................................. 3

6.1.5 Five The minmum coil weight .............................................................................................................................. 3

6.1.6 Welds .......................................................................................................................................................................................... 3

6.2 Steel grade and chemical composition ............................................................................................................................... 4

6.3 Mechanical properties ...................................................................................................................................................................... 4

6.3.1 Tensile strength ................................................................................................................................................................ 4

6.3.2 Wrapping test ..................................................................................................................................................................... 6

6.3.3 Torsion test ........................................................................................................................................................................... 6

6.4 Surface quality ......................................................................................................................................................................................... 6

6.5 Special requirements. ........................................................................................................................................................................ 6

7 Inspection and testing .................................................................................................................................................................................... 6

7.1 Sampling and test requiements are specified in Table 8. ................................................................................... 6

7.2 Inspection and acceptance............................................................................................................................................................ 6

7.3 Batching rule ............................................................................................................................................................................................. 6

8 Retest ................................................................................................................................................................................................................................ 6

9 Packing and identification ......................................................................................................................................................................... 7

© ISO 2021 – All rights reserved iii
---------------------- Page: 3 ----------------------
ISO/DIS 23213:2021(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.

The committee responsible for this document is ISO/TC 17, Steel, Subcommittee SC 17, Steel wire rod and

wire products.

Users should note that all International Standards undergo revision from time to time and that

any reference made herein to any other International Standard implies its latest edition, unless

otherwise stated.
iv © ISO 2021 – All rights reserved
---------------------- Page: 4 ----------------------
DRAFT INTERNATIONAL STANDARD ISO/DIS 23213:2021(E)
Carbon steel wire for bedding and seating springs
1 Scope

This document specifies requirements for carbon steel wire of round cross-section supplied in the

cold-draw condition and intended for the manufacture of springs for bedding and seating used in the

automotive and furniture manufacturing industries.
The Standard applies to wire
...

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