ISO 16856:2013
(Main)Ships and marine technology — Loose gear of lifting appliances on ships — Hooks
Ships and marine technology — Loose gear of lifting appliances on ships — Hooks
ISO 16856:2013 specifies the types and basic parameters, technical requirements, marking, storage, and transportation, use and maintenance of hooks as loose gear of lifting appliances on ships. ISO 16856:2013 is applicable to lifting appliances on ships.
Navires et technologie maritime — Accessoires mobiles des appareils de levage sur les navires — Crocs
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INTERNATIONAL ISO
STANDARD 16856
First edition
2013-12-15
Ships and marine technology — Loose
gear of lifting appliances on ships —
Hooks
Navires et technologie maritime — Accessoires mobiles des appareils
de levage sur les navires — Crocs
Reference number
©
ISO 2013
© 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
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2013 – All rights reserved
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Types . 1
4.1 Common hook types . 1
4.2 Other types (E-shaped) . 1
4.3 Model designation . 2
4.4 Locking device requirement . 2
5 Technical requirements . 2
5.1 Materials . 2
5.2 Forging and heat treatment . 3
5.3 Surface and internal quality of hooks. 3
5.4 Tests . 3
5.5 Inspection . 4
5.6 Other requirements . 4
6 Marking . 4
7 Storage and transportation . 5
8 Use and maintenance . 5
Annex A (informative) Types and basic parameters of common hooks . 6
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 meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO’s adherence to the WTO principles in the Technical Barriers
to Trade (TBT) see the following URL: Foreword - Supplementary information
The committee responsible for this document is ISO/TC 8, Ships and marine technology, Subcommittee
SC 4, Outfitting and deck machinery.
iv © ISO 2013 – All rights reserved
INTERNATIONAL STANDARD ISO 16856:2013(E)
Ships and marine technology — Loose gear of lifting
appliances on ships — Hooks
1 Scope
This International Standard specifies the types and basic parameters, technical requirements, marking,
storage, and transportation, use and maintenance of hooks as loose gear of lifting appliances on ships.
This International Standard is applicable to lifting appliances on ships.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
ISO 1837, Lifting hooks — Nomenclature
ISO 16855, Ships and marine technology — Loose gear of lifting appliances on ships — General requirements
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 16855 and ISO 1837 apply.
4 Types
4.1 Common hook types
4.1.1 Shank hook with point (S-shaped)
For the shapes and dimensions of a shank hook with point, see A.1.
4.1.2 Shank ramshorn hook (D-shaped)
For the shapes and dimensions of a shank ramshorn hook, see A.2.
4.1.3 C-hook (C-shaped)
For the shapes and dimensions of a C-hook, see A.3.
4.2 Other types (E-shaped)
Types of hooks in ISO 1837 other than common hook types that can also be used as ship hooks fall under
E-shaped.
4.3 Model designation
Figure
EXAMPLE Designation of a shank hook with point with 20 t SWL:
Hook ISO 16856 H-S20
4.4 Locking device requirement
Various types of hooks shall be provided with automatic locking devices.
5 Technical requirements
5.1 Materials
5.1.1 Hook materials must use solid steel manufactured by Martin furnaces, electric furnaces, or oxygen
top-blown converters; it is recommended to use the electroslag remelting process.
5.1.2 For the chemical composition of hook materials, see Table 1. Other materials can be used (see
5.6).
Table 1 — Chemical composition of hook materials
Chemical composition (heat analysis)
%
Materials
C Si Mn P S Cr Al
Carbon steel 0,17–0,24 0,17–0,35 0,45–0,80 ≤0,035 ≤0,035 ≤0,030 ≥0,025
Carbon-man-
0,17–0,24 0,20–0,35 1,20–1,50 ≤0,035 ≤0,035 ≤0,030 ≥0,025
ganese steel
5.1.3 For the mechanical properties of hook materials, see Table 2. Other mechanical properties can be
used (see 5.6).
2 © ISO 2013 – All rights reserved
Table 2 — Mechanical properties of hook materials
Mechanical properties
Tensile Impact
Yield point
strength Elongation A energy
R
eH
R % A
m K
MPa
Materia
...
INTERNATIONAL ISO
STANDARD 16856
First edition
2013-12-15
Ships and marine technology — Loose
gear of lifting appliances on ships —
Hooks
Navires et technologie maritime — Accessoires mobiles des appareils
de levage sur les navires — Crocs
Reference number
©
ISO 2013
© 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
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2013 – All rights reserved
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Types . 1
4.1 Common hook types . 1
4.2 Other types (E-shaped) . 1
4.3 Model designation . 2
4.4 Locking device requirement . 2
5 Technical requirements . 2
5.1 Materials . 2
5.2 Forging and heat treatment . 3
5.3 Surface and internal quality of hooks. 3
5.4 Tests . 3
5.5 Inspection . 4
5.6 Other requirements . 4
6 Marking . 4
7 Storage and transportation . 5
8 Use and maintenance . 5
Annex A (informative) Types and basic parameters of common hooks . 6
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 meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO’s adherence to the WTO principles in the Technical Barriers
to Trade (TBT) see the following URL: Foreword - Supplementary information
The committee responsible for this document is ISO/TC 8, Ships and marine technology, Subcommittee
SC 4, Outfitting and deck machinery.
iv © ISO 2013 – All rights reserved
INTERNATIONAL STANDARD ISO 16856:2013(E)
Ships and marine technology — Loose gear of lifting
appliances on ships — Hooks
1 Scope
This International Standard specifies the types and basic parameters, technical requirements, marking,
storage, and transportation, use and maintenance of hooks as loose gear of lifting appliances on ships.
This International Standard is applicable to lifting appliances on ships.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
ISO 1837, Lifting hooks — Nomenclature
ISO 16855, Ships and marine technology — Loose gear of lifting appliances on ships — General requirements
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 16855 and ISO 1837 apply.
4 Types
4.1 Common hook types
4.1.1 Shank hook with point (S-shaped)
For the shapes and dimensions of a shank hook with point, see A.1.
4.1.2 Shank ramshorn hook (D-shaped)
For the shapes and dimensions of a shank ramshorn hook, see A.2.
4.1.3 C-hook (C-shaped)
For the shapes and dimensions of a C-hook, see A.3.
4.2 Other types (E-shaped)
Types of hooks in ISO 1837 other than common hook types that can also be used as ship hooks fall under
E-shaped.
4.3 Model designation
Figure
EXAMPLE Designation of a shank hook with point with 20 t SWL:
Hook ISO 16856 H-S20
4.4 Locking device requirement
Various types of hooks shall be provided with automatic locking devices.
5 Technical requirements
5.1 Materials
5.1.1 Hook materials must use solid steel manufactured by Martin furnaces, electric furnaces, or oxygen
top-blown converters; it is recommended to use the electroslag remelting process.
5.1.2 For the chemical composition of hook materials, see Table 1. Other materials can be used (see
5.6).
Table 1 — Chemical composition of hook materials
Chemical composition (heat analysis)
%
Materials
C Si Mn P S Cr Al
Carbon steel 0,17–0,24 0,17–0,35 0,45–0,80 ≤0,035 ≤0,035 ≤0,030 ≥0,025
Carbon-man-
0,17–0,24 0,20–0,35 1,20–1,50 ≤0,035 ≤0,035 ≤0,030 ≥0,025
ganese steel
5.1.3 For the mechanical properties of hook materials, see Table 2. Other mechanical properties can be
used (see 5.6).
2 © ISO 2013 – All rights reserved
Table 2 — Mechanical properties of hook materials
Mechanical properties
Tensile Impact
Yield point
strength Elongation A energy
R
eH
R % A
m K
MPa
Materia
...
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