Components for slings - Safety - Part 5: Forged steel lifting hooks with latch - Grade 4

This Part of EN 1677 specifies requirements for forged steel lifting hooks of grade 4 having latch and eye up to 31,5 t WLL, mainly for use in:
-   chain slings according to EN 818-5
-   steel wire rope slings according to prEN 13414-1:1998
-   textile slings according to EN 1492-1, EN 1492-2.
intended for lifting objects, materials or goods.
This Part of EN 1677 does not apply to hand forged hooks.
The hazards covered by this Part of EN 1677 are identified in clause 4.
Annex A gives the bases for calculation of hook dimensions.
Annex B gives an example of a designation system for hooks of grade 4.

Einzelteile für Anschlagmittel - Sicherheit - Teil 5: Geschmiedete Haken mit Sicherungsklappe - Güteklasse 4

Dieser Teil von EN 1677 legt Anforderungen für geschmiedete Ösenhaken der Güteklasse 4 im Bereich bis 31,5 t Tragfähigkeit fest, die hauptsächlich Verwendung finden in:
   Anschlagketten nach EN 818-5,
   Anschlagseilen aus Stahldrahtseilen nach EN 13414-1 und
   textilen Anschlagmitteln nach EN 1492-1 und EN 1492-2,
die zum Heben von Gegenständen, Materialien und Gütern vorgesehen sind.
Dieser Teil von EN 1677 gilt nicht für handgeschmiedete Haken.
Die Gefährdungen, die durch diesen Teil von EN 1677 abgedeckt werden, sind in Abschnitt 4 aufgeführt.
Anhang A enthält Grundlagen für die Berechnung der Hakenmaße.
Anhang B enthält ein Beispiel eines Bezeichnungssystems für Haken der Güteklasse 4.

Accessoires pour élingues - Sécurité - Partie 5: Crochets de levage en acier forgé à linguet - Classe 4

La présente partie de l'EN 1677 spécifie les prescriptions requises pour les crochets en acier forgé de classe 4 avec
linguet et oeil, de charge maximale d'utilisation inférieure ou égale à 31,5 tonnes, principalement utilisés avec :
- des élingues en chaînes selon l'EN 818-5 ;
- des élingues en câbles d'acier selon !l’EN 13414-1+A2:2008" ;
- des élingues textiles selon les EN 1492-1 et EN 1492-2.
prévues pour le levage d'objets, de matériels ou de marchandises.
La présente norme européenne ne s'applique pas aux crochets forgés à la main.
Les risques couverts par la présente partie de l'EN 1677 sont identifiés dans l'article 4.
L'annexe A indique les méthodes de calcul des dimensions des crochets.
L'annexe B donne un exemple de système de désignation des crochets de classe 4.

Sestavni deli obes - Varnost - 5. del: Kovani kavlji z varovalom - Kakovostni razred 4

General Information

Status
Published
Publication Date
09-Dec-2008
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
08-Dec-2008
Due Date
12-Feb-2009
Completion Date
10-Dec-2008

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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Sestavni deli obes - Varnost - 5. del: Kovani kavlji z varovalom - Kakovostni razred 4Einzelteile für Anschlagmittel - Sicherheit - Teil 5: Geschmiedete Haken mit Sicherungsklappe - Güteklasse 4Accessoires pour élingues - Sécurité - Partie 5: Crochets de levage en acier forgé à linguet - Classe 4Components for slings - Safety - Part 5: Forged steel lifting hooks with latch - Grade 453.020.30Pribor za dvigalno opremoAccessories for lifting equipmentICS:Ta slovenski standard je istoveten z:EN 1677-5:2001+A1:2008SIST EN 1677-5:2001+A1:2009en,fr,de01-januar-2009SIST EN 1677-5:2001+A1:2009SLOVENSKI

STANDARD
SIST EN 1677-5:2001+A1:2009
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 1677-5:2001+A1
November 2008 ICS 53.020.30 Supersedes EN 1677-5:2001 English Version

Components for slings - Safety - Part 5: Forged steel lifting hooks with latch - Grade 4

Accessoires pour élingues - Sécurité - Partie 5: Crochets de levage en acier forgé à linguet - Classe 4

Einzelteile für Anschlagmittel - Sicherheit - Teil 5: Geschmiedete Haken mit Sicherungsklappe - Güteklasse 4This European Standard was approved by CEN on 18 February 2001 and includes Amendment 1 approved by CEN on 9 September 2008. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN Management Centre or to any CEN member.

This European Standard exists 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 Management Centre has the same status as the official versions.

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

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36

B-1050 Brussels © 2008 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1677-5:2001+A1:2008: ESIST EN 1677-5:2001+A1:2009

EN 1677-5:2001+A1:2008 (E) 2 Contents Page Foreword..............................................................................................................................................................3 Introduction.........................................................................................................................................................4 1 Scope......................................................................................................................................................4 2 Normative references............................................................................................................................4 3 Terms and definitions...........................................................................................................................5 4 Hazards...................................................................................................................................................6 Table 1 — Hazards and associated requirements...........................................................................................6 5 Safety requirements..............................................................................................................................6 5.1 Design.....................................................................................................................................................6 5.2 Dimensions.............................................................................................................................................7 Figure 1 — Dimensions of hook........................................................................................................................7 Table 2 — Dimensions of hooks (see Figure 1)...............................................................................................8 5.3 Materials and heat treatment................................................................................................................8 Table 3 — Sulfur and phosphorous content....................................................................................................9 Table 4 — Silicon content..................................................................................................................................9 5.4 Manufacturing methods and workmanship........................................................................................9 5.5 Mechanical properties.........................................................................................................................10 5.6 Hook latches.........................................................................................................................................10 Table 5 — Torque values for latches – guidance..........................................................................................11 Figure 2 — Application of forces for type testing of the latch.....................................................................11 6 Verification of safety requirements....................................................................................................12 6.1 Qualification of personnel..................................................................................................................12 6.2 Type tests.............................................................................................................................................12 6.3 Manufacturing proof tests..................................................................................................................13 6.4 Manufacturing test regime and acceptance criteria.........................................................................13 Table 6 — Number of hooks in a lot................................................................................................................13 6.5 Hook latches.........................................................................................................................................14 7 Marking.................................................................................................................................................14 8 Manufacturer’s certificate...................................................................................................................14 9 Instructions for use.............................................................................................................................15 Annex A (informative)

Bases for the calculation of hook dimensions........................................................16 Annex B (informative)

Designation system for hooks - Grade 4..................................................................17 B.1 Designation..........................................................................................................................................17 B.2 General format.....................................................................................................................................17 Annex ZA (informative)

!!!!Relationship between this European Standard and the Essential Requirements of EU Directive 98/37/EC"""".......................................................................................18 Annex ZB (informative)

!!!!Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC""""...................................................................................19 Bibliography......................................................................................................................................................20

SIST EN 1677-5:2001+A1:2009

EN 1677-5:2001+A1:2008 (E) 3 Foreword This document (EN 1677-5:2001+A1:2008) has been prepared by Technical Committee CEN/TC 168 “Chains, ropes, webbing, slings and accessories - Safety”, the secretariat of which is held by BSI. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by May 2009, and conflicting national standards shall be withdrawn at the latest by December 2009. This document supersedes EN 1677-5:2001. This document includes Amendment 1, approved by CEN on 2008-09-09. The start and finish of text introduced or altered by amendment is indicated in the text by tags !". This European Standard 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 Annexes ZA and ZB, which are integral parts of this document."

The other Parts of EN 1677 for components for slings are:

Part 1: Forged steel components - Grade 8 Part 2: Forged steel lifting hooks with latch - Grade 8 Part 3: Forged steel self-locking hooks - Grade 8 Part 4: Links - Grade 8 Part 6: Links - Grade 4

Annexes A and B of this European Standard are informative.

According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

SIST EN 1677-5:2001+A1:2009

EN 1677-5:2001+A1:2008 (E) 4 Introduction This European Standard has been prepared to be a harmonized standard providing one means of complying with the essential safety requirements of the Machinery Directive and associated EFTA regulations. The hooks covered by this Part of EN 1677 are normally supplied to be part of a sling, but they may 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. The extent to which hazards are covered is indicated in the scope. In addition, lifting equipment shall conform as appropriate to EN 292 for hazards that are not covered by this standard. 1 Scope This Part of EN 1677 specifies requirements for forged steel lifting hooks of grade 4 having latch and eye up to 31,5 t WLL, mainly for use in:  chain slings according to EN 818-5  steel wire rope slings according to prEN 13414-1:1998  textile slings according to EN 1492-1, EN 1492-2. intended for lifting objects, materials or goods. This Part of EN 1677 does not apply to hand forged hooks. The hazards covered by this Part of EN 1677 are identified in clause 4. Annex A gives the bases for calculation of hook dimensions. Annex B gives an example of a designation system for hooks of grade 4. 2 Normative references This European Standard incorporates, by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies (including amendments). EN 292-1, Safety of machinery - Basic Concepts - General principles for design - Part 1 : Basic Terminology, methodology EN 292-2:1991/A.1:1995, Safety of machinery - Basic concepts - General principles for design - Part 2 : Technical principles and specifications (Amendment A.1:1995) EN 818-5, Short-link chain for lifting purposes – Safety - Part 5: Chain slings - Grade 4 EN 818-6, Short link chain for lifting purposes – Safety - Part 6: Chain slings - Specification for information for use and maintenance to be provided by the manufacturer

SIST EN 1677-5:2001+A1:2009

EN 1677-5:2001+A1:2008 (E) 5 EN 1050:1996, Safety of machinery - Principles for risk assessment EN 1492-1, Textile slings – Safety - Part 1: Flat woven webbing slings made of man-made fibres EN 1492-2, Textile slings – Safety -

Part 2: Round slings made of man-made fibres EN 10002-2:1991, Metallic materials - Tensile testing - Part 2: Verification of the force measuring system of the tensile testing machines EN 10025:1990+A1:1993, Hot rolled products of non-alloy structural steels - Technical delivery - conditions prEN 13414-1:1998, Steel wire ropes for slings – Safety - Part 1: Wire rope slings EN 45012, General requirements for bodies operating assessment and certification/registration of quality systems (ISO/IEC Guide 62:1996) EN ISO 9002:1994, Quality systems - Model for quality assurance in production, installation and servicing ISO 643:1983, Steels - Micrographic determination of the ferritic or austenitic grain size 3 Terms and definitions For the purposes of this Part of EN 1677, the following terms and definitions apply. 3.1

working load limit (WLL) maximum mass that a hook is authorized to sustain in general lifting service, expressed as a code

NOTE This term has the same meaning as the term maximum working load used in annex A of EN 292-2:1991/A1:1995. 3.2

manufacturing proof force (MPF) force applied to the hook during the manufacturing proof test

3.3

breaking force (BF) maximum force reached during the static tensile test of the hook, at which the hook fails to retain the load

3.4

traceability code series of letters and/or numbers marked on a hook that enables its manufacturing history, including the identity of the cast of steel used, to be traced

3.5

competent person designated person, suitably trained, qualified by knowledge and practical experience, and with the necessary instruction to enable the required test and examination to be carried out

NOTE 4.18 of EN ISO 9002:1994 gives guidance on training.
3.6

lot specified number of hooks from which samples are selected for testing purposes, and that have been manufactured from the same cast of steel and subjected to the same heat treatment process

SIST EN 1677-5:2001+A1:2009

EN 1677-5:2001+A1:2008 (E) 6 4 Hazards Accidental release of a load or, release of a load due to failure of a hook puts at risk, either directly or indirectly, the safety or health of those persons within the danger zone. In order to provide the necessary strength and durability of hooks, this Part of EN 1677 gives requirements for the design, manufacture and testing to ensure that specified levels of performance are met. Fatigue failure has not been identified as a hazard when grade 4 hooks having the specified levels of performance given in this standard are used for general lifting purposes. Since failure can be caused by the incorrect choice of grade and specification of hook, this Part of EN 1677 also gives requirements for marking and the manufacturer’s certificate. Errors of fitting can also lead to failure and this Part of EN 1677 contains dimensional requirements to allow correct fit. Risk of injury due to sharp edges, sharp angles or rough surfaces when handling is also covered by this standard. Those aspects of safe use associated with good practice are given in EN 818-6. Table 1 contains those hazards that require action to reduce risk identified by risk assessment as being specific and significant for forged steel hooks of grade 4. Table 1 — Hazards and associated requirements Hazards identified in annex A of EN 1050: 1996 Relevant clause of annex A of EN 292-2 : 1991/A.1 : 1995 Relevant clause/subclause of this Part of EN 1677 1.e Mechanical 1.3.2 5

hazard due to 4.1.2.3 5
inadequacy of 4.1.2.5 5
strength 4.2.4 5

1.7.3 7 1.3 Cutting hazard 1.3.4 5.4 1.8 Friction or abrasion hazard 1.3.4 5.4 15 Errors of fitting hazard 1.5.4 5.2 17 Falling objects hazard 1.3.3 5.6

5 Safety requirements 5.1 Design The form of the upper end shall be of the eye type as indicated in Figure 1. The dimensions shall be such as to ensure articulation so that the force imposed is transmitted in the intended direction. SIST EN 1677-5:2001+A1:2009

EN 1677-5:2001+A1:2008 (E) 7 NOTE The form of the hook is not specified in detail. For example, a minimum value of dimension F (see Figure 1) as measured in any direction is specified so that the eye of the hook can accommodate a pin, but the eye of the hook need not be circular. Each hook shall have a spring loaded latch conforming to 5.6. to ensure that the load cannot become accidentally unhooked. 5.2 Dimensions The principal dimensions of the hooks shall conform to Table 2, in which the hook dimensions are related to the working load limit. NOTE For direct use in wire rope slings and/or textile slings, dimension F should be larger than the minimum value given in Table 2 In addition, the following requirements shall be met: a) the actual point height B shall be equal to or greater than the full throat opening, O, (see Figure 1); b) the full throat opening O shall not exceed 95% of the actual seat diameter D; c) the hook latch shall be capable

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