Forged steel lifting hooks with latch, grade 8

ISO 7597:2013 specifies requirements for forged steel lifting hooks with latch of grade 8 having eye or clevis and pin up to 63 t working load limit (WLL), mainly for use in chain slings according to ISO 4778 and ISO 7593, for use in steel wire rope slings according to ISO 7531, for use in textile slings, and intended for lifting objects, materials or goods.

Crochets de levage forgés en acier avec loquet, classe 8

General Information

Status
Published
Publication Date
03-Apr-2013
Current Stage
6060 - International Standard published
Start Date
07-Feb-2013
Completion Date
04-Apr-2013
Ref Project

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ISO 7597:2013 - Forged steel lifting hooks with latch, grade 8
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INTERNATIONAL ISO
STANDARD 7597
Second edition
2013-04-01
Forged steel lifting hooks with latch,
grade 8
Crochets de levage forgés en acier avec loquet, classe 8
Reference number
ISO 7597:2013(E)
ISO 2013
---------------------- Page: 1 ----------------------
ISO 7597:2013(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2013

All rights reserved. Unless otherwise specified, 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
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Tel. + 41 22 749 01 11
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Published in Switzerland
ii © ISO 2013 – All rights reserved
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ISO 7597:2013(E)
Contents Page

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

Introduction ..................................................................................................................................................................................................................................v

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

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

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

4 Safety requirements ......................................................................................................................................................................................... 1

4.1 Design ............................................................................................................................................................................................................. 1

4.2 Dimensions ................................................................................................................................................................................................. 2

4.3 Materials and heat treatment ..................................................................................................................................................... 4

4.4 Manufacturing methods and workmanship .................................................................................................................. 4

4.5 Mechanical properties ...................................................................................................................................................................... 4

4.6 Hook latches .............................................................................................................................................................................................. 5

5 Verification of safety requirements .................................................................................................................................................. 6

5.1 Qualification of personnel ............................................................................................................................................................. 6

5.2 Type tests ..................................................................................................................................................................................................... 6

5.3 Manufacturing test regime and acceptance criteria ............................................................................................... 6

5.4 Hook latches .............................................................................................................................................................................................. 6

6 Marking .......................................................................................................................................................................................................................... 6

7 Manufacturer’s declaration ....................................................................................................................................................................... 7

8 Instructions for use ........................................................................................................................................................................................... 7

Annex A (informative) Bases for the calculation of hook dimensions............................................................................... 8

Annex B (informative) Designation system for hooks — Grade 8 .......................................................................................... 9

Bibliography .............................................................................................................................................................................................................................10

© ISO 2013 – All rights reserved iii
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ISO 7597:2013(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. 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. 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.

The committee responsible for this document is ISO/TC 111, Round steel link chains, chain slings,

components and accessories, Subcommittee SC 3, Components and accessories.

This second edition cancels and replaces the first edition (ISO 7597:1987), which has been technically revised.

iv © ISO 2013 – All rights reserved
---------------------- Page: 4 ----------------------
ISO 7597:2013(E)
Introduction

The hooks covered by this International Standard are normally supplied to be part of a sling, but they

can also be used for other applications. In such instances, it is important that the hook design is checked

to ensure its fitness for the intended use.
© ISO 2013 – All rights reserved v
---------------------- Page: 5 ----------------------
INTERNATIONAL STANDARD ISO 7597:2013(E)
Forged steel lifting hooks with latch, grade 8
1 Scope

This International Standard specifies requirements for forged steel lifting hooks with latch of grade 8

having eye or clevis and pin up to 63 t working load limit (WLL), mainly:
— for use in chain slings according to ISO 4778 and ISO 7593;
— for use in steel wire rope slings according to ISO 7531;
— for use in textile slings;
— intended for lifting objects, materials or goods.
This International Standard does not apply to hand forged hooks.
Annex A gives the bases for calculation of hook dimensions.
Annex B gives an example of a designation system for hooks of grade 8.
2 Normative referen
...

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