BS EN 1677-1 (2000) +A1 2008 Forged Steel Components, Grade 8

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This British Standard was

published under the authority

of the Standards Committee

and comes into effect on

15 October 2000

© BSI 2009

30

ISBN 978 0 580 64273 9

BS EN 1677-1:2000+A1:2008

A1A1

April 2009



EUROPEAN STANDARD

NORME EUROPÉENNE

EUROPÄISCHE NORM

EN 1677-1:2000+A1

November 2008

ICS 53.020.30 Supersedes EN 1677-1:2000

English Version

Components for slings - Safety - Part 1: Forged steelcomponents, Grade 8

Accessoires pour élingues - Sécurité - Partie 1: Accessoires en acier forgé, Classe 8

Einzelteile für Anschlagmittel - Sicherheit - Teil 1:Geschmiedete Einzelteile, Güteklasse 8

This European Standard was approved by CEN on 21 May 2000 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 EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards 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 translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial 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

COM IT É E UROPÉ E N DE NORM AL ISAT ION

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 reservedworldwide for CEN national Members.

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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 ..............................................................................................................................7 Table 2 — Chemical composition - Alloying elements ...................................................................................7

Table 3 — Sulfur and phosphorous content....................................................................................................8

Table 4 — Mechanical properties....................................................................................................................10

6 Verification of safety requirements....................................................................................................11

Table 5 — Number of components in a lot.....................................................................................................13

7 Marking .................................................................................................................................................14

8 Manufacturer's certificate ...................................................................................................................14

9 Instructions for use .............................................................................................................................15

Annex A (informative) Calculation of mechanical properties.......................................................................16

Annex B (informative) Designation system for forged steel components - Grade 8 .................................17

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

Annex ZB (informative) !!!!Relationship between this European Standard and the EssentialRequirements of EU Directive 2006/42/EC""""...................................................................................19

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Foreword

This document (EN 1677-1:2000+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 identicaltext or by endorsement, at the latest by May 2009, and conflicting national standards shall be withdrawn at thelatest by December 2009.

This document includes Amendment 1, approved by CEN on 2008-09-09.

This document supersedes EN 1677-1:2000.

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 Commissionand 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 thisdocument."

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

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

Part 5: Forged steel lifting hooks with latch - Grade 4Part 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 followingcountries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, CzechRepublic, 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.

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Introduction

This European Standard has been prepared to be a harmonized standard providing one means of complyingwith the essential safety requirements of the Machinery Directive and associated EFTA regulations.

The components covered by this Part of EN 1677 are normally supplied to be part of a sling, but they mayalso be used for other applications. In such instances it is important that the component design is checked toensure its fitness for the intended use.

The extent to which hazards are covered is indicated in the scope. In addition, lifting equipment shall conformas appropriate to EN 292 for hazards that are not covered by this standard.

1 Scope

This Part of EN 1677 specifies general requirements for forged steel components of grade 8 up to 63 t WLL,mainly for use in:

chain slings according to EN 818-4;

steel wire rope slings according to prEN 13414-1:1999;

textile slings according to EN 1492-1:2000, EN 1492-2:2000

intended for lifting objects, materials or goods.

This standard does not apply to hand forged components and welded links, nor to other welded components.

The hazards covered by this Part of EN 1677 are identified in clause 4.

Annex A is informative, and gives the bases for calculation of tabulated values of mechanical properties.

Annex B is informative, and gives an example of a designation system for forged steel lifting components ofgrade 8.

! Annexes ZA and ZB give the relationship with EU-Directives."

2 Normative references

This European Standard incorporates, by dated or undated reference, provisions from other publications.These normative references are cited at appropriate places in the text and the publications are listedhereafter. For dated references, subsequent amendments to or revisions of any of these publications apply tothis European Standard only when incorporated in it by amendment or revision. For undated references thelatest edition of the publication referred to applies.

EN 292-1, Safety of machinery - Basic concepts - General principles for design – Part 1: Basic terminology,methodology

EN 292-2:1991/A1:1995, Safety of machinery - Basic concepts - General principles for design – Part 2:Technical principles and specifications (Amendment 1:1995)

EN 818-4, Short-link chain for lifting purposes – Safety – Part 4: Chain slings Grade 8

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EN 818-6:2000, Short-link chain for lifting purposes – Safety – Part 6: Chain slings - Specification forinformation for use and maintenance to be provided by the manufacturer

EN 1050:1996, Safety of machinery - Principles of risk assessment

EN 1492-1:2000, Textile slings – Safety – Part 1: Flat woven webbing slings made of man-made fibres

EN 1492-2:2000, Textile slings – Safety – Part 2: Round slings made of man-made fibres

prEN 13414-1:1999, Steel wire rope slings – Safety - Part 1:Wire rope slings

EN ISO 9001, Quality systems - Model for quality assurance in design/development, production, installationand servicing

EN ISO 9002:1994, Quality systems - Model for quality assurance in production, installation and servicing

EN 10002-2:1991, Metallic materials - Tensile testing – Part 2: Verification of the force measuring system ofthe tensile testing machine

EN 10025:1993, Hot rolled products of non-alloy structural steels - Technical delivery conditions

EN 10228-1:1999, Non-destructive testing of steel forgings – Part 1: Magnetic particle inspection

EN 10228-2:1998, Non-destructive testing of steel forgings – Part 2: Penetrant testing

EN 45012, General criteria for certification bodies operating quality system certification

ISO 643, Steels - Micrographic determination of the ferritic or austenitic grain size

3 Terms and definitions

For the purpose of this Part of EN 1677 the following definitions apply.

3.1working load limit (WLL)Maximum mass that a component 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 ofEN 292-2: 1991/A1: 1995.

3.2manufacturing proof force (MPF)

Force applied to the component during the manufacturing proof test.

3.3breaking force (BF)

Maximum force reached during the static tensile test of the component, at which the component fails to retainthe load.

3.4traceability code

Series of letters and/or numbers marked on a component that enables its manufacturing history, including theidentity of the cast of steel used, to be traced.

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3.5competent personDesignated person, suitably trained, qualified by knowledge and practical experience, and with the necessaryinstruction to enable the required test and examination to be carried out.

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

3.6lotSpecified number of components from which samples are selected for testing purposes, and that have beenmanufactured from the same cast of steel and subjected to the same heat treatment process.

4 Hazards

Accidental release of a load, or release of a load due to failure of a component puts at risk, either directly orindirectly, the safety or health of those persons within the danger zone.

In order to provide the necessary strength and durability of components this Part of EN 1677 givesrequirements for the design, manufacture and testing to ensure the specified levels of performance are met.

Since failure can be caused by the incorrect choice of grade and specification of component, this Part ofEN 1677 also gives requirements for marking and the manufacturer’s certificate.

Risk of injury due to sharp edges, sharp angles or rough surfaces when handling is also covered by this Partof EN 1677.

Those aspects of safe use associated with good practice are given in EN 818-6:2000.

Table 1 contains those hazards which require action to reduce risk identified by risk assessment as beingspecific and significant for forged steel components, Grade 8.

Table 1 — Hazards and associated requirements

Hazards identified in annex A ofEN 1050 : 1996

Relevant clause of annex Aof EN 292-2: 1991/A1: 1995

Relevant clause/subclauseof this Part of EN 1677

1 Mechanical hazard due to 1.3.2 5

inadequacy of strength 4.1.2.3 5

4.1.2.5 5

4.2.4 5

1.7.3 7

1.7.4 9

1.3 Cutting hazard 1.3.4 5.3

1.8 Friction or 1.3.4 5.3

abrasion hazard

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5 Safety requirements

5.1 General

5.1.1 Articulation

The dimensions of the forged steel components covered by this Part of EN 1677 shall be such as to ensurearticulation so that the force imposed is transmitted in the intended direction.

5.1.2 Relative movement

Parts of mechanical joining devices, such as pins and their securing elements, shall be so designed andmanufactured that, after assembly, no unintended displacement can occur.

NOTE The effects of wear, corrosion of securing elements or rough usage should be considered.

5.2 Materials and heat treatment

5.2.1 Quality of material

5.2.1.1 General

Within the limitations given in 5.2.1.2 to 5.2.1.4 the manufacturer shall select the type of steel, to be used sothat the finished component, when suitably heat-treated conforms to the mechanical properties specified inthis Part of EN 1677.

5.2.1.2 Type of steel

The steel shall be produced by an electric process or by an oxygen blown process.

5.2.1.3 Deoxidation

The steel shall be fully killed as defined in EN 10025: 1993, be stabilized against strain age embrittlement, andhave an austenitic grain size of 5 or finer when tested in accordance with ISO 643.

This shall be accomplished by ensuring that the steel contains sufficient aluminium (minimum 0,025 %) topermit the manufacture of components stabilized against strain age embrittlement during service.

5.2.1.4 Chemical composition

The steel shall contain alloying elements in sufficient quantities so that the finished component, when heattreated in accordance with 5.2.2, not only conforms to the mechanical properties specified in this Part ofEN 1677, but also possesses adequate low temperature ductility in order to work satisfactorily in thetemperature range -40 °C to 400 °C.

The steel shall contain at least two of the three alloying elements, in the minimum percentages shown intable 2.

Table 2 — Chemical composition - Alloying elements

Element Minimum mass content asdetermined by cast analysis %

Nickel 0,40

Chromium 0,40Molybdenum 0,15

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The steel shall contain no more sulphur and phosphorous than the limits given in table 3.

Table 3 — Sulfur and phosphorous content

Maximum mass content as determined by

Element Cast analysis % Check analysis %

Sulfur 0,025 0,030

Phosphorus 0,025 0,030

5.2.2 Heat treatment

Each component shall be hardened from a temperature above the AC3 point and tempered before beingsubjected to the manufacturing proof force. The tempering temperature shall be a minimum of 400 °C.

The tempering conditions shall be at least as effective as a temperature of 400 °C maintained for a period of

1 h.

NOTE A method of verification is as follows. After the components have been reheated to and maintained for 1 h at400 °C and then cooled to room temperature; they should conform in the finished condition to columns 3 and 4 of table 4.

Surface hardening shall not be permitted for load bearing parts of the component.

5.3 Manufacturing methods and workmanship

5.3.1 Manufacture

Each forged part of a component shall be forged hot in one piece. Excess metal from the forging operation

shall be removed cleanly leaving the surface free from sharp edges. After heat-treatment, furnace scale shallbe removed.

Edges of machined surfaces shall be rounded to eliminate cutting edges and to ensure attainment ofmechanical properties of the component.

Welding shall not be used during the manufacture of components unless:

a) none of the parts to be welded are load bearing; or

b) the area affected by the weld is not to be subjected to load under normal operating conditions or underany foreseeable misuse of the component, and the welding is completed before heat treatment.

NOTE Care should be taken during welding to ensure that the mechanical properties of any load bearing parts of thefinished component are not affected.

All welds shall be smoothly finished.

5.3.2 Surface finish

The ‘finished condition of components’ shall include any surface finish.

NOTE Components are supplied in various surface finishes, e.g. descaled, electroplated or painted.

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5.4 Mechanical properties

5.4.1 Manufacturing proof force (MPF)

Components, including load-bearing pins, if used, shall be able to withstand the manufacturing proof force

specified in table 4. Following removal of the force, the dimensions shall be within the tolerances specified onthe component manufacturer’s drawings.

5.4.2 Breaking force (BF)

Components, including load-bearing pins, if used, shall have a breaking force at least equal to that specified intable 4.

On completion of the static tensile test, components shall show evidence of deformation.

5.4.3 Fatigue resistance

Components, including load-bearing pins, if used, with a working load limit up to 32 t, shall withstand, withoutbreaking, at least 20 000 cycles of application of the force range specified in 6.2.5.

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Table 4 — Mechanical properties

(1) (2) (3) (4)

Code Working load limit Manufacturing proof force Breaking forcenumber (WLL) (MPF) (BF)

t kN kN (min)

3 0,25 6,1 9,84 0,5 12,3 19,65 0,8 19,6 31,4

6 1,12 27,5 43,97 1,5 36,8 58,88 2 49 78,5

9 2,5 61,3 98,110 3,15 77,2 124

11 4 98,1 157

13 5,3 130 20814 6 147 23516 8 196 314

18 10 245 39219 11,2 275 43920 12,5 306 490

22 15 368 58823 16 392 62825 20 490 785

26 21,2 520 83228 25 613 98132 31,5 772 1240

36 40 981 157040 50 1230 196045 63 1540 2470

NOTE The WLL figures given correspond to WLL for chains for use in chain slings conforming to EN 818-4,with additional WLL figures for components for use in wire rope slings and textile slings.

NOTE The mechanical properties specified in table 4 are calculated on the basis specified in annex A. It iscommon practice for manufacturers to round MPF and BF up to higher values that may appear in their publishedcatalogues.

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6 Verification of safety requirements

6.1 Qualification of personnel

All testing and examination shall be carried out by a competent person.

6.2 Type tests and examination

6.2.1 General

In order to prove the design, material, heat treatment and method of manufacture, each size of component inthe finished condition shall be type tested to demonstrate that the components possess the mechanicalproperties specified in this part of EN 1677.

Any change of design, specification of material, heat treatment, method of manufacture or any dimensionoutside normal manufacturing tolerances that may lead to a modification of the articulation, relative movementor mechanical properties shall require that the type examination specified in 6.2.2 and the type tests specified

in 6.2.3 to 6.2.5 are carried out on the modified components.

The tests specified in 6.2.3 to 6.2.5 shall be carried out on three samples of each size of component of eachdesign, material, heat treatment and method of manufacture.

In the tests specified in 6.2.3 to 6.2.5, the force shall be applied to the component axially without shock.Components designed for use in textile slings shall be tested (other than in fatigue) so that the force is appliedthrough the appropriate textile element.

The test machine used in the tests specified in 6.2.3 to 6.2.5 shall conform to EN 10002: 1991 Part 2: Class 1.

6.2.2 Examination for articulation and relative movement

One sample of each design shall be visually examined for conformity to the requirements of 5.1.1 and 5.1.2

6.2.3 Test for deformation

Three samples shall be tested, and each shall sustain the manufacturing proof force specified for thecomponent in table 4. Following the removal of the force, the dimensions shall be within the tolerancesspecified on the component manufacturer’s drawings. In no case shall any dimension alter by more than1,0 % of the initial dimension after the manufacturing proof force has been applied and removed.

6.2.4 Static tensile test

Three samples shall be tested and each shall have a breaking force at least equal to the minimum value

specified for the component in table 4.

NOTE This test may be carried out on the same components subjected to the deformation test.

NOTE It is not necessary to test the component up to its actual breaking force for the specified mechanical propertiesto be demonstrated. It is sufficient that the minimum breaking force specified is reached and that the component showsevidence of deformation.

6.2.5 Fatigue test

Three samples shall be tested and each shall be able to withstand at least 20 000 cycles of the force rangewithout breaking.

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The maximum force applied during each cycle shall be equivalent to 1,5 times the working load limit specifiedin table 4 for the component. The minimum force in each cycle shall be positive and less than or equal to3 kN. The frequency of force applications shall be not greater than 25 Hz.

6.2.6 Acceptance criteria for type tests and examination

6.2.6.1 Examination for articulation and relative movement

The sample shall meet the requirements.

6.2.6.2 Test for deformation

If any of the three samples fails the test for deformation, the component of the size submitted for type testingshall be deemed not to conform to this part of EN 1677.

6.2.6.3 Static tensile test and fatigue test

If all three samples pass the static tensile test and fatigue test, the component of the size submitted for typetesting shall be deemed to conform to this Part of EN 1677.

If one sample fails, two further samples shall be tested and both shall pass the test in order for the componentof the size submitted for testing to be deemed to conform to this Part of EN 1677.

If two or three samples fail the test, the component of the size submitted for type testing shall be deemed notto conform to this Part of EN 1677.

6.3 Manufacturing examination

All finished components shall be visually examined for conformity to the requirements of 5.3.1.

6.4 Manufacturing tests

6.4.1 Manufacturing proof test

For the manufacturing proof test, the equipment used shall apply a force at least equal to the manufacturingproof force specified.

After heat-treatment and de-scaling, components shall sustain the appropriate manufacturing proof forcespecified in table 4. After removal of the force, there shall be no visible defect, and the dimensions shall bewithin the tolerances specified on the manufacturer’s drawing.

Where finishing processes are used that involve risk of component embrittlement, e.g. acid cleaning or

electroplating, the manufacturing proof force shall be reapplied in the finished condition.

6.4.2 Non-destructive test

The forged surfaces of components, excluding load bearing pins machined from drawn bar, shall, after heattreatment and de-scaling, be subjected to magnetic particle or dye penetrant examination in accordance withEN 10228: 1999 Part 1 and EN 10228: 1998 Part 2.

Indications greater than 2 mm in length shall not be permitted in areas of the component subjected to tensilestresses, in all foreseeable service conditions.

If grinding is required to remove such indications, then after grinding, the component shall conform to the

dimensions and tolerances specified by the manufacturer. A final examination shall show no indicationsgreater than 2 mm in length.

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NOTE Care should be taken to ensure that the direction and roughness of grinding does not create starting points forfatigue failure and cause excessive heating, which may have a local effect on the heat treated condition, or may causecracks.

Load bearing pins machined from drawn bar shall be tested (e.g. hardness testing or by using magneticsorting techniques) to demonstrate that they have been satisfactorily heat treated. They shall be examinedfollowing heat treatment and shall be free from visible defect.

6.5 Manufacturing test regime and acceptance criteria

6.5.1 General

The manufacturing test regime shall depend on whether the manufacturer has a quality system conforming toEN ISO 9002: 1994 and is certified by a certification body accredited to EN 45012.

NOTE A quality system conforming to EN ISO 9001 automatically conforms to EN ISO 9002.

If such a system is in place and operating, the manufacturer’s test regime shall conform to 6.5.2. If no such

system is in place or operating the manufacturer’s test regime shall comply with 6.5.3.

NOTE Subclause 6.5.2 specifies alternative testing regimes. It is permissible for load bearing pins to be tested to adifferent regime to that of the rest of the component.

The maximum size of a lot shall be as given in table 5 for the ranges of code numbers indicated.

Table 5 — Number of components in a lot

Code number Maximum numberin a lot

3 to 10 1000over 10 to 18 500

over 18 200

6.5.2 Manufacturing test regime and acceptance criteria when a quality system conforming toEN ISO 9002 is in place and operating

If a quality system conforming to EN ISO 9002 is in place and operating, the manufacturer shall have thechoice of either:

a) Applying the manufacturing proof force test to all components in the lot specified in table 5 in accordance

with 6.4.1 plus non-destructive testing of 3 % of the lot of components in accordance with 6.4.2.

If all of the 3 % sample of components pass the non-destructive test then all components in the lot whichalso pass the manufacturing proof force test shall be deemed to conform to this part of EN 1677.

If any of the 3 % sample fail the non-destructive test then all components in the lot shall be subjected toboth the non-destructive test and the manufacturing proof force test. All components which pass bothtests shall conform to this part of EN 1677.

or

b) Applying the non-destructive test to all components in the lot specified in table 5 in accordance with 6.4.2plus manufacturing proof force testing of 3 % of the lot of components in accordance with 6.4.1.

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If all of the 3 % sample of components pass the manufacturing proof force test then all components in thelot which also pass the non destructive test shall be deemed to conform to this part of EN 1677.

If any of the 3 % sample fail the manufacturing proof force test then all components in the lot shall besubjected to both the non-destructive test and the manufacturing proof force test. All components which

pass both tests shall conform to this part of EN 1677.

6.5.3 Manufacturing test regime and acceptance criteria when a quality system conforming toEN ISO 9002 is not in place or not operating

If a quality system conforming to EN ISO 9002 is not in place or not operating, the manufacturer shall carryout a manufacturing proof test in accordance with 6.4.1 and a non-destructive test in accordance with 6.4.2 onevery component including load bearing pins. Any component failing the manufacturing proof test or the non-destructive test shall not conform to this Part of EN 1677.

All components that pass both the manufacturing proof test and the non-destructive test shall conform to thispart of EN 1677.

In addition, the manufacturer shall subject one sample per lot to the static tensile test as defined in 6.2.4. If thesample meets the appropriate requirements then the lot shall be deemed to conform to this Part of EN 1677.

If the sample fails to meet the requirements then two further samples shall be taken from the same lot. Both ofthese samples shall be subjected to the static tensile test. If one or both of these samples fail to meet theappropriate requirements the entire lot shall be deemed not to conform to this Part of EN 1677.

7 Marking

7.1 Components

Each component shall be legibly and indelibly marked in a place where the marking will not be removed byuse and in a manner that will not impair the mechanical properties. The marking shall include at least thefollowing information:

a) code number;

b) the grade number “8”;

c) the manufacturer’s name, symbol or mark;

d) the traceability code.

NOTE Item a) is the code number which identifies WLL of the component (see table of Mechanical Properties).

7.2 Load bearing pins

Each removable load bearing pin of 13 mm diameter and above, shall be legibly and indelibly marked with therelevant grade number and manufacturer’s symbol in a manner that will not impair the mechanical propertiesof the pin.

8 Manufacturer's certificate

After all the testing as specified in clause 6 has been carried out with satisfactory results, the manufacturer

shall issue a certificate for components of the same nominal dimensions, size, material, heat treatment, andmethod of manufacture.

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The certificate shall include at least the following information:

a) the name and address of the manufacturer or authorized representative, including the date of issue of the

certificate and authentication;

b) the number and relevant part of this European Standard;

c) code number;

d) the quantity and description of the component;

e) the grade number “8”;

f) the working load limit, in tonnes;

g) !the manufacturing proof force according to 5.4.1, in kilonewtons;"

h) confirmation that the specified minimum breaking force was met or exceeded;

i) an identification of the quality system to EN ISO 9002 when in place and operating.

The manufacturer shall keep a record, for at least 10 years after the last certificate has been issued, of thematerial specification, heat treatment, dimensions, test results, quality system in use, and all relevant dataconcerning the components that have satisfied the type tests, including records of sampling. This record shallalso include the manufacturing specifications that shall apply to subsequent production.

9 Instructions for use

Instructions for use shall accompany the components and shall conform to the relevant clauses ofEN 818-6:2000. Advice shall be given on how to assemble and disassemble forged steel components andhow to ensure the correct fit of any pin.

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Annex A (informative)

Calculation of mechanical properties

A.1 Calculated values of manufacturing proof force (MPF)

The values of manufacturing proof force have been calculated using the following formula:

MPF = 2,5 x g x WLL

= 24,51663 WLL

where

MPF is the manufacturing proof force, in kilonewtons

WLL is the working load limit given in column 2 of table 4

g is the acceleration due to gravity (in m/s2 i.e. 9,80665).

The values in column 3 of table 4 have been rounded to the nearest single decimal place up to 100 kN; to thenearest whole number between 100 kN and 1000 kN; and to the nearest 10 kN above 1000 kN.

A.2 Calculated values of minimum breaking force (BF min)

The values of minimum breaking force have been calculated using the following formula:

BF min = 4,0 x g x WLL

= 39,2266 WLL

where

BF min is the minimum breaking force, in kilonewtons

WLL is the working load limit given in column 2 of table 4

g is the acceleration due to gravity (in m/s2 i.e. 9,80665).

The values in column 4 of table 4 have been rounded to the nearest single decimal place up to 100 kN; to thenearest whole number between 100 kN and 1000 kN; and to the nearest 10 kN above 1000 kN.

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Annex B (informative)

Designation system for forged steel components - Grade 8

B.1 Designation

Designation of the forged steel components should be in accordance with the general format given in B.2. Thedenomination of a component should be determined by the manufacturer.

B.2 General format

---- ---- prEN 1677-1 - 8 - 20

Quantity

Denomination

EN Number block

Grade number

Code number

(see table 4)

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Annex ZA(informative)

!!!!Relationship between this European Standard and the EssentialRequirements of EU Directive 98/37/EC

This European Standard has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association to provide a means of conforming to Essential Requirements of theNew Approach Directive 98/37/EC, amended by 98/79/CE on machinery.

Once this standard is cited in the Official Journal of the European Communities under that Directive and hasbeen implemented as a national standard in at least one Member State, compliance with the normative

clauses of this standard confers, within the limits of the scope of this standard, a presumption of conformity with the relevant Essential Requirements of that Directive and associated EFTA regulations.

WARNING - Other requirements and other EU Directives may be applicable to the product(s) falling within thescope of this standard."

BS EN 1677-1:2000+A1:2008



EN 1677-1:2000+A1:2008 (E)

19

Annex ZB(informative)

!!!!Relationship between this European Standard and the Essential

Requirements of EU Directive 2006/42/EC

This European Standard has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association to provide a means of conforming to Essential Requirements of theNew Approach Directive 2006/42/EC on machinery.

Once this standard is cited in the Official Journal of the European Communities under that Directive and hasbeen implemented as a national standard in at least one Member State, compliance with the normative clauses of this standard confers, within the limits of the scope of this standard, a presumption of conformity with the relevant Essential Requirements of that Directive and associated EFTA regulations.

WARNING - Other requirements and other EU Directives may be applicable to the product(s) falling within thescope of this standard."

BS EN 1677-1:2000+A1:2008



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BSEN

1677-1:2000

+A1:2008

Documents

BS EN 1677-1 (2000) +A1 2008 Forged Steel Components, Grade 8