Cranes - General design - Part 3-5: Limit states and proof of competence of forged hooks

This European Standard is to be used together with EN 13001-1 and EN 13001-2 and, as such, they specify general conditions, requirements and methods to prevent by design and theoretical verification, mechanical hazards in crane hooks.
This European Standard covers the following parts of hooks and types of hooks:
-   bodies of any type of hooks made of steel forgings;
-   machined shanks of hooks with a thread/nut suspension.
Principles of this European Standard can be applied to machined shanks of hooks in general. However, stress concentration factors relevant to designs not given in this standard would have to be determined and applied.
NOTE 1   Cast hooks and plate hooks, which are those, assembled of one or several parallel parts of rolled steel plates, are not covered in this European Standard.
The following is a list of significant hazardous situations and hazardous events that could result in risks to persons during normal use and foreseeable misuse. Clauses 4 to 8 of this document are necessary to reduce or eliminate the risks associated with the following hazards:
a)   exceeding the limits of strength (yield, ultimate, fatigue);
b)   exceeding temperature limits of material.
The requirements of this European Standard are stated in the main body of the document and are applicable to forged hook designs in general.
The commonly used hook body and shank designs listed in Annexes A, B and F are only examples and should not be referred to as requirements of this European Standard. Annex I gives guidance for the selection of a hook size, where a hook body is in accordance with Annex A or B. The selection of hook form is not limited to those shown in Annexes A and B.
This European Standard is applicable to cranes, which are manufactured after the date of approval of this European Standard by CEN, and serves as a reference base for product standards of particular crane types.
NOTE 2   This part of EN 13001 deals only with the limit state method in accordance with EN 13001-1.

Krane - Konstruktion allgemein - Teil 3-5: Grenzzustände und Sicherheitsnachweise von geschmiedeten Haken und gegossene Haken

Diese Europäische Norm ist in Verbindung mit den anderen einschlägigen Teilen der Normenreihe zu sehen. Insgesamt werden darin die allgemeinen Bedingungen, Anforderungen und Methoden zur Verhinderung von Gefahren an Haken als Bestandteil sämtlicher Krantypen festgelegt.
Diese Europäische Norm gilt für folgende Hakenteile und Hakenarten:
-   alle Arten von geschmiedeten Spitzhakenkörpern
-   bearbeitete Hakenschäfte mit Gewinde-/Mutter-Aufhängung.
ANMERKUNG 1   Die Grundsätze der Europäische Norm sind auch auf andere Arten von Gabelhaken sowie bei der Ermittlung und Verwendung von Spannungskonzentrationsfaktoren, die für die betreffende Schaftkonstruktion von Bedeutung sind, anwendbar. Lamellenhaken, die aus einem oder mehreren parallel angeordneten Blechen aus Walzstahl zusammengesetzt sind, sind nicht Gegenstand dieser Europäische Norm.
Die vorliegende Europäische Norm gilt für Haken aus Werkstoffen mit einer Bruchfestigkeit von maximal 800 N/mm2 und einer Fließgrenze von maximal 600 N/mm2.
Im Folgenden sind signifikante Gefahrensituationen und Gefahrenereignisse aufgeführt, die zu Gefahren für den Menschen während des normalen Gebrauchs und bei vorhersehbarem Missbrauch führen könnten. Abschnitte 4 bis 8 dieses Dokuments sind wichtig, um Risiken, die mit nachfolgend genannten Gefahren verbunden sind, zu minimieren oder zu verhindern:
a)   Überschreiten der Festigkeitsgrenzwerte (Fließen, Bruch, Ermüdung);
b)   Überschreiten der Temperaturgrenzwerte des Werkstoffs;
c)   unbeabsichtigtes Aushängen der Last vom Haken.
Die Anforderungen dieser Europäische Norm sind im Hauptteil des Dokuments beschrieben und gelten für Hakenkonstruktionen allgemein. Die in den Anhängen A, B und G aufgeführten Bemes¬sungen von Hakenkörpern und Hakenschäften dienen nur als Beispiel und sind nicht als Anforderungen dieser Europäische Norm zu verstehen.
Diese Europäische Norm gilt für Krane, die nach dem Datum der Genehmigung dieses Dokuments durch CEN gefertigt werden, und dient als Referenzgrundlage für Europäische Norm von speziellen Krantypen.
ANMERKUNG 2   Dieser Teil der EN 13001 befasst sich nur mit der Methode der Grenzzustände nach EN 13001-1.

Appareils de levage à charge suspendue - Conception générale - Partie 3-5 : Etats limites et vérification des crochets forgés

Il convient d’utiliser la présente Norme européenne conjointement avec l'EN 13001-1 et l'EN 13001-2. En tant que telles, elles spécifient les conditions, prescriptions et méthodes générales permettant d’éviter les phénomènes dangereux dus aux crochets par conception et vérification théorique.
La présente Norme européenne couvre les composants de crochets et types de crochets suivants :
-   corps de tout type de crochets à bec en acier forgé ;
-   tiges usinées de crochets à suspension par vis/écrou.
Les principes de la présente Norme européenne peuvent s‘appliquer aux tiges usinées des crochets en général. Cependant, des facteurs de concentration des contraintes correspondant aux conceptions qui ne sont pas données dans la présente Norme devraient être déterminés et utilisés.
NOTE 1    Les crochets moulés et les crochets lamellaires constitués de l’assemblage d’une ou de plusieurs tôles en acier laminé ne sont pas couverts par la présente Norme européenne.
La liste suivante spécifie les situations et les évènements dangereux significatifs susceptibles d’entraîner des risques pour les personnes lors d’une utilisation normale ou d’une mauvaise utilisation prévisible. Les Articles 4 à 8 du présent document sont nécessaires pour réduire ou éliminer les risques associés aux phénomènes dangereux suivants :
a)   dépassement des limites de résistance (élasticité, rupture, fatigue) ;
b)   dépassement des limites de température du matériau.
Les prescriptions de la présente Norme européenne sont spécifiées dans le corps du texte du document et s’appliquent aux conceptions de crochet forgé en général.
Les conceptions de corps et de tige de crochet fréquemment utilisées énumérées dans les Annexes A, B et F ne sont fournies qu’à titre d’exemple et il convient de ne pas les citer comme des prescriptions de la présente Norme européenne. L’annexe I donne des lignes directrices pour la sélection d’une taille de crochet, lorsque le corps du crochet est conforme à l’Annexe A ou B. La sélection d’une forme de crochet n’est pas limitée à celles des Annexes A et B.
La présente Norme européenne s'applique aux appareils de levage à charge suspendue construits après la date d'approbation par le CEN de la présente Norme européenne, et sert de référence pour les normes produit des types particuliers d’appareils de levage à charge suspendue.
NOTE 2   La présente partie de l’EN 13001 considère uniquement la méthode des états limites selon l’EN 13001-1.

Žerjavi - Konstrukcija, splošno - 3-5. del: Mejna stanja in dokaz varnosti kovanih kavljev

General Information

Status
Not Published
Public Enquiry End Date
11-Feb-2018
Current Stage
5020 - Formal vote (FV) (Adopted Project)
Start Date
05-Feb-2019
Due Date
26-Mar-2019
Completion Date
19-Mar-2019

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SLOVENSKI STANDARD
SIST EN 13001-3-5:2016/oprA1:2018
01-februar-2018
Žerjavi - Konstrukcija, splošno - 3-5. del: Mejna stanja in dokaz varnosti kovanih
kavljev
Cranes - General design - Part 3-5: Limit states and proof of competence of forged
hooks
Krane - Konstruktion allgemein - Teil 3-5: Grenzzustände und Sicherheitsnachweise von
geschmiedeten Haken und gegossene Haken
Appareils de levage à charge suspendue - Conception générale - Partie 3-5 : Etats
limites et vérification des crochets forgés
Ta slovenski standard je istoveten z: EN 13001-3-5:2016/prA1
ICS:
53.020.20 Dvigala Cranes
SIST EN 13001-3-5:2016/oprA1:2018 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 13001-3-5:2016/oprA1:2018

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SIST EN 13001-3-5:2016/oprA1:2018


DRAFT
EUROPEAN STANDARD
EN 13001-3-5:2016
NORME EUROPÉENNE

EUROPÄISCHE NORM
prA1
November 2017
ICS 53.020.20; 53.020.30
English Version

Cranes - General design - Part 3-5: Limit states and proof
of competence of forged hooks
Appareils de levage à charge suspendue - Conception Krane - Konstruktion allgemein - Teil 3-5:
générale - Partie 3-5 : Etats limites et vérification des Grenzzustände und Sicherheitshinweise von
crochets forgés geschmiedeten Haken und gegossene Haken
This draft amendment is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC 147.

This draft amendment A1, if approved, will modify the European Standard EN 13001-3-5:2016. If this draft becomes an
amendment, CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for
inclusion of this amendment into the relevant national standard without any alteration.

This draft amendment was established by CEN in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC
Management Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and United Kingdom.

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.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.


EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2017 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 13001-3-5:2016/prA1:2017 E
worldwide for CEN national Members.

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SIST EN 13001-3-5:2016/oprA1:2018
EN 13001-3-5:2016/prA1:2017 (E)
Contents Page
European foreword . 3
1 Modification to the Title . 4
2 Modification to the European foreword . 4
3 Modifications to Clause 1, "Scope" . 4
4 Modifications to Clause 2, "Normative references" . 4
5 Modifications to Clause 3, "Terms and definitions, symbols and abbreviations" . 4
6 Modifications to Clause 4, "General requirements" . 5
7 Modifications to Clause 5, "Static strength" . 8
8 Modifications to Clause 6, "Fatigue strength" . 8
9 Modifications to Clause 7, "Verification of the safety requirements and/or protective
measures" . 9
10 Modifications to Clause 8, "Information for use" . 9
11 Modifications to Annex A, "Sets of single hooks" . 10
12 Modifications to Annex B, "A series of ramshorn hooks of type RS/RSN and RF/RFN,
dimensions of forgings" . 10
13 Modifications to Annex C, "Dimensional tolerances of forgings". 11
14 Modifications to Annex E, "Fatigue limit design forces of hook bodies" . 11
15 Modifications to Annex F, "Sets of hook shank and thread designs" . 13
16 Modifications to Annex G, "Bending of curved beams". 14
17 Modifications to Annex I, "Guidance for the selection of a hook body size using
Annexes D and E" . 14
18 Modifications to Annex J, "Information to be provided by the hook manufacturer". 14
19 Modifications to Annex K, "Guidance on cold forming by proof loading" . 14
20 Modifications to Annex L, "Selection of a suitable set of crane standards for a given
application" . 15
21 Modifications to the Bibliography . 16

2

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SIST EN 13001-3-5:2016/oprA1:2018
EN 13001-3-5:2016/prA1:2017 (E)
European foreword
This document (EN 13001-3-5:2016/prA1:2017) has been prepared by Technical Committee
CEN/TC 147 “Crane — Safety”, the secretariat of which is held by BSI.
This document is currently submitted to the CEN Enquiry.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports essential requirements of EU Directive(s).
For relationship with EU Directive(s), see informative Annex ZA of EN 13001-3-5:2016.
3

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SIST EN 13001-3-5:2016/oprA1:2018
EN 13001-3-5:2016/prA1:2017 (E)
1 Modification to the Title
Change the Title to read:
“Cranes — General design — Part 3-5: Limit states and proof of competence of forged and cast hooks”
2 Modification to the European foreword
th
Replace the 7 paragraph (that begins with “The major changes”) with:
“The major changes in this standard compared to EN 13001-3-5:2016 are in 4.1, 4.2, 6.5.4, 6.6.4 and 8.2
to extend the scope of the standard to "cast hooks".
3 Modifications to Clause 1, "Scope"
st
Replace the 1 list item with:
— “bodies of any type of hooks made of steel forgings or steel castings;”.
Replace Note 1 with:
“NOTE 1 Plate hooks, which are those, assembled of one or several parallel parts of rolled steel plates, are not
covered in this European Standard.”.
th
Replace the sentence after the 4 paragraph list with:
“The requirements of this European Standard are stated in the main body of the document and are
applicable to hook designs in general.”.
4 Modifications to Clause 2, "Normative references"
Add the following references:
EN 1369:2012, Founding — Magnetic particle testing
EN 1370:2011, Founding — Examination of surface condition
EN 1371-1:2011, Founding — Liquid penetrant testing — Part 1: Sand, gravity die and low pressure die
castings
EN 10340:2007, Steel casting for structural uses
EN ISO 6506-1:2014, Metallic materials — Brinell hardness test — Part 1: Test method
5 Modifications to Clause 3, "Terms and definitions, symbols and abbreviations"
In 3.1.1, replace the definition with:
“upper part of the hook, from which the hook is suspended to the hoist medium of the crane”
st
In 3.2, Table 1, 1 row, replace with:
A
Cross section area of the unmachined shank
d1
th
In 3.2, Table 1, 14 row, replace with:
d
Diameter of the unmachined shank
1

4

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SIST EN 13001-3-5:2016/oprA1:2018
EN 13001-3-5:2016/prA1:2017 (E)
th
In 3.2, Table 1, 36 row, replace with:
I
Moment of inertia of the unmachined shank
d1
6 Modifications to Clause 4, "General requirements"
In 4.1.1, replace the whole sub-clause with:
“The hook material shall fulfill the requirements of this clause independent of the material standard
applied (see 4.1.2) and independent whether classification of the material is applied or not (see 4.1.3).
The hook material in the finished product shall have sufficient ductility to permanently deform before
losing the ability to carry the load, at the temperatures specified for the use of the hook. Particularly the
hook material shall fulfill the following conditions:
— the ratio of ultimate strength (f ) to yield stress (f ) f /f ≥ 1,2. For the materials, which do not
u y u y
fulfill this condition, the design value of f shall be limited to f /1,2;
y u
— the percentage elongation at fracture A ≥ 10 % on a gauge length LS5,65× (where S is the
0
0 0
original cross-sectional area).
The hook material, after heat treatment, shall have minimum Charpy-V impact toughness in accordance
with Table 2.
Table 2 — Impact test requirement for hook material
Minimum impact
Operation
Impact test temperature
toughness A
temperature
v
T ≥ 0 °C +20 °C 27 J
T ≥ −20 °C −0 °C 27 J
T ≥ −30 °C −20 °C 27 J
T ≥ −40 °C −30 °C 35 J
T ≥ −50 °C −40 °C 35 J

To satisfy the requirements of the operating temperature, the manufacturer shall select the steel, which
after suitable heat treatment, shall be consistent with achieving the chosen mechanical property grade
for the selected hook form, taking into account its individual ruling thickness.
The steel shall be fully killed, stabilized against strain age embrittlement, ensured by having sufficient
content of aluminium (minimum of 0,02 %). The steel shall contain no more sulphur and phosphorus
than the limits given in Table 3.
Table 3 — Sulphur and phosphorus content
Maximum mass content as determined by
Element
Cast analysis Check analysis
Sulphur (S) 0,020 [%] 0,025 [%]
Phosphorus (P) 0,020 [%] 0,025 [%]
Sum of S + P 0,035 [%] 0,045 [%]

5
=

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SIST EN 13001-3-5:2016/oprA1:2018
EN 13001-3-5:2016/prA1:2017 (E)
The steel for forged hooks shall have a grain size of 8 or finer, with grain size determined in accordance
with EN ISO 643.
Where quenched and tempered steel is used, the hardenability of the steel shall fulfil the requirement of
the Jominy-ratio given in Table 4. The Jominy-ratio J30/J1,5 is the ratio between J30 and J1,5, where J30
and J1,5 mean the hardness at depths 30 mm and 1,5 mm correspondingly, determined by Jominy face-
quenching test in accordance with EN ISO 642. The tests shall be carried out per melt and the values be
given in the technical hook information, see Annex J. For more information on hardening properties and
hardness profiles, see EN 10083-3.
Where the mechanical properties of cast hooks are tested for each single hook, the hardenability may be
verified by HB-testing in accordance with EN 6506-1 in the section of the test specimen at 1,5 mm and
30 mm depth from the surface. The hardness ratio shall fulfil the minimum requirement (Jominy-ratio)
given in Table 4.
Table 4 — Hardenability of quenched and
tempered materials, Jominy-ratio
Ultimate strength f
Minimum required
u
2
Jominy-ratio J30/J1,5
N/mm
540 ≤ f < 800 65 %
u
800 ≤ f
93 %
u
”.
nd
In 4.1.2, 2 sentence, delete the word “forged”.

6

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SIST EN 13001-3-5:2016/oprA1:2018
EN 13001-3-5:2016/prA1:2017 (E)

In 4.1.2, Table 5, replace the table with:
"
Table 5 — Suitable materials for hooks

Material standard Selected qualities
EN 10025-3 S355N S420N
EN 10222-4 P355NH P420NH
P355QH P420QH
Forged hooks EN 10250-2 S355J2
EN 10083-3 25CrMo4+QT 34CrNiMo6+QT
EN 10250-3 34CrMo4+QT 30CrNiMo8+QT
36CrNiMo4+QT
EN 10213-3 G20Mn5 + N G20Mn5 + QT
Cast hooks
EN 10340 G18NiMoCr3-6 + QT GX4CrNi13-4 + QT
".
st
In 4.1.3, 1 sentence, delete the word “forged”.
In 4.2, after title, add a new subtitle “4.2.1 Forged hooks”.
In 4.2, after subclause 4.2.1, insert a new subclause 4.2.2:
“4.2.2 Cast hooks
The manufacturing process, in factory tests and delivery conditions shall meet the requirements of
EN 1559.
The castings shall be heat-treated to meet the mechanical properties of the applicable grade.
Prior to quenching, the ingate system is to be roughly removed. After quenching excess material from
the casting system shall be removed cleanly leaving the surface free from sharp edges.
The surface roughness of the hook seat in the finished product shall be equal to or better than
Rz 500 µm, for example S2 in accordance with EN 1370. Grinding may be used to reach the required
surface quality. Any grinding marks shall be in a circumferential direction in respect to the seat circle.
After heat treatment the surface of a cast hook shall be inspected for defects using appropriate NDT-
methods. Requirements of quality class 2 of EN 1369 or class 2 of EN 1371-1 shall be met.
The inner quality has to be inspected by ultrasonic inspection in accordance with EN 12680-1 and
quality class 2 shall be met.
Weld procedures for production welding are required for all repairs during manufacturing, and shall be
qualified in accordance with ISO/TR 15608:2013-04 and EN ISO 15614-1. Subsequently the welded
part must be post weld heat treated.”.
st st
In 4.3, 1 paragraph, 1 sentence, replace the word “forged” with “unmachined”.
In 4.4, delete the word “forged”.
st st
In 4.5, 1 paragraph, 1 sentence, replace the sentence with:
“As the last stage of the manufacturing process, a forged hook may be subjected to a “proof load test”
a
...

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