1、December 2008DEUTSCHE NORM English price group 12No part of this standard may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 53.020.30!$TF“1495735
2、www.din.deDDIN EN 818-3Short link chain for lifting purposes Safety Amendment A1:2008)English version of DIN EN 818-3:2008-12Kurzgliedrige Rundstahlketten fr Hebezwecke Sicherheit nderung A1:2008)Englische Fassung DIN EN 818-3:2008-12SupersedesDIN EN 818-3:1999-07www.beuth.deDocument comprises 25 pa
3、gesPart 3: Medium tolerance chain for chain slings Grade 4 (includesTeil 3: Mitteltolerierte Rundstahlketten fr Anschlagketten Gteklasse 4 (enthltDIN EN 818-3:2008-12 2 Start of validity This standard takes effect on 1 November 2008. DIN EN 818-3:1999-07 may be used in parallel until 28 December 200
4、9. National foreword Clause 5 of this standard includes safety requirements. This standard has been prepared by Technical Committee CEN/TC 168 “Chains, ropes, webbing, slings and accessories Safety” (Secretariat: BSI, United Kingdom). The responsible German body involved in its preparation was the N
5、ormenausschuss Rundstahlketten (Round Steel Link Chains Standards Committee), Technical Committee NA 085-00-03 AA Anschlagketten und Zube-hr. For further information about the Normenausschuss Rundstahlketten (NRK), please refer to www.nrk.din.de. This standard includes Amendment A1:2008 to EN 818-3:
6、1999 and concretizes the basic requirements set out in Annex I of the EU Machinery Directive 98/37/EC (valid until 28 December 2009) and the new EU Machinery Directive 2006/42/EC which becomes applicable on 29 December 2009 relating to machinery to be placed on the EEA market, with the intent of sim
7、plifying the means of proving conformity with such requirements. Once this standard is designated a harmonized standard in the Official Journal of the European Union, a manufacturer applying this standard may assume compliance with the requirements of the Machinery Directive (the so-called “presumpt
8、ion of conformity”). DIN EN 818 consists of the following parts, under the general title Short link chain for lifting purposes Safety: Part 1: General conditions of acceptance Part 2: Medium tolerance chain for chain slings Grade 8 Part 3: Medium tolerance chain for chain slings Grade 4 Part 4: Chai
9、n slings Grade 8 Part 5: Chain slings Grade 4 Part 6: Chain slings Specification for information for use and maintenance to be provided by the manufacturer Part 7: Fine tolerance hoist chain, Grade T (Types T, DAT and DT) DIN EN 818-3:2008-12 3 Amendments This standard differs from DIN EN 818-3:1996
10、-08 as follows: a) Reference to EN 292-2:1991/A1:1995 in Table 1 has been deleted. b) A new subclause 5.3.4 “Stainless steel” has been included. c) Annex ZA (informative) “Relationship between this European Standard and the Essential Requirements of EU Directive 98/37/EC” has been added. d) Annex ZB
11、 (informative) “Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC” has been added. Previous editions DIN EN 818-3: 1999-07 DIN EN 818-3:2008-12 4 This page is intentionally blank EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 818-3:1999+A1 Ap
12、ril 2008 ICS 53.020.30 Supersedes EN 818-3:1999 English Version Short link chain for lifting purposes - Safety - Part 3: Medium tolerance chain for chain slings - Grade 4 Chanes de levage maillons courts - Scurit - Partie 3: Chanes de tolrance moyenne pour lingues en chanes -Classe 4 This European S
13、tandard was approved by CEN on 16 April 1999 and includes Amendment 1 approved by CEN on 10 February 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 alterati
14、on. 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 transla
15、tion 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,
16、 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 COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Man
17、agement 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 818-3:1999+A1:2008: ETeil 3: Mitteltolerierte Rundstahlketten fr Anschlagketten - Kurzgliedrige Rundstahlketten fr Hebezwecke
18、- Sicherheit - Gteklasse 4 2 Contents Page Foreword4 Introduction .5 1 Scope 5 2 Normative references 5 3 Terms and definitions .6 4 Hazards .6 5 Safety requirements 7 5.1 General7 5.2 Dimensions.7 5.2.1 Nominal size of chain, dn7 5.2.2 Tolerance on material diameter (except at the weld).7 5.2.3 Wel
19、d diameter 7 5.2.4 Length dimensionally affected by welding .7 5.2.5 Pitch and widths 7 5.3 Materials and heat treatment9 5.3.1 !General 9 5.3.2 Quality of material9 5.3.3 Heat treatment10 5.3.4 !Stainless steel.10 5.4 Mechanical properties.10 5.4.1 Manufacturing proof force (MPF).10 5.4.2 Breaking
20、force (BF) and total ultimate elongation (A) .10 5.4.3 Bend deflection10 6 Verification of safety requirements11 6.1 Qualification of personnel 11 6.2 Size of lot and selection of samples12 6.3 Manufacturing proof force, breaking force and total ultimate elongation.12 6.3.1 Static tensile test .12 6
21、.3.2 Manufacturing proof force acceptance criteria 12 6.3.3 Breaking force and total ultimate elongation acceptance criteria12 6.4 Bend deflection12 6.4.1 Bend test.12 6.4.2 Bend deflection acceptance criteria 13 7 Marking .13 8 Manufacturers certificate .13 9 !Information“ for use .13 Annex A (info
22、rmative) Calculation of dimensions, working load limits and mechanical properties .14 A.1 Dimensions and tolerances 14 A.2 Working load limits and mechanical properties.14 Annex B (informative) Mass of chain 17 Annex C (informative) Designation system for chain (medium tolerance) - Grade 4.18 EN 818
23、-3:1999+A1:2008 (E) DIN EN 818-3:2008-12 EN 818-3:1999+A1:2008 (E) 3 Annex ZA (informative) !Relationship between this European Standard and the Essential Requirements of EU Directive 98/37/EC19 Annex ZB (informative) !Relationship between this European Standard and the Essential Requirements of EU
24、Directive 2006/42/EC20 !Bibliography 21 DIN EN 818-3:2008-12 EN 818-3:1999+A1:2008 (E) 4 Foreword This document (EN 818-3:1999+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 Europea
25、n Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by October 2008 and conflicting national standards shall be withdrawn at the latest by October 2008. This document includes Amendment 1, approved by CEN on 2008-02
26、-10. This document supersedes EN 818-3:1999. The start and finish of text introduced or altered by amendment is indicated in the text by tags ! “. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential r
27、equirements 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 818 are: Part 1 : General conditions of acceptance Part 2 : Medium tolerance chain for chain slings - Grade 8 Part 4 : Chain sl
28、ings - Grade 8 Part 5 : Chain slings - Grade 4 Part 6 : Chain slings - Specification for information for use and maintenance to be provided by the manufacturer Part 7 : Fine tolerance chains for hoists, Grade T (types T, DAT, DT). According to the CEN/CENELEC Internal Regulations, the national stand
29、ards 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, Po
30、rtugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. DIN EN 818-3:2008-12 EN 818-3:1999+A1:2008 (E) 5 Introduction This European Standard has been prepared to be a harmonized standard to provide one means of conforming with the essential safety requirements of the Mach
31、inery Directive and associated EFTA regulations. The Directive stipulates that where chain with welded links is used for lifting accessories it is to be of short link type and for the purposes of this standard this is chain having a ratio of nominal pitch to nominal size of 3:1. The extent to which
32、hazards are covered is indicated in the scope. In addition, lifting equipment shall conform as appropriate to !EN ISO 12100“ for hazards which are not covered by this standard. !This standard is a Type C standard as stated in EN ISO 12100. When provisions of this type C standard are different from t
33、hose which are stated in type A or B standards, the provisions of this type C standard take precedence over the provisions of the other standards, for equipment that have been designed and built according to the provisions of this type C standard.“ 1 Scope !This part of EN 818 specifies the requirem
34、ents related to safety for short link chains, grade 4, of medium tolerance for use in chain slings to EN 818-4:1996+A1 and for general lifting purposes.“ The standard is applicable to electrically welded round steel short link chains, conforming to !EN 818-1:1996+A1“, which are intended for lifting
35、objects, materials or goods. The range of nominal sizes of chain covered by this Part of EN 818 is from 7 mm to 45 mm. The hazards covered by this Part of EN 818 are identified in clause 4. Annex A contains the bases for calculation of tabulated values for dimensions, working load limits and mechani
36、cal properties. Annex B gives information on the mass/metre of chain. Annex C gives an example of a designation system for chains of grade 4. Annex ZA gives the relationship with EU Directives. 2 Normative references This European Standard incorporates by dated or undated reference provisions from o
37、ther 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
38、 or revision. For undated references, the latest edition of the publication referred to applies. !deleted text“ !EN 818-1:1996+A1:2008“, Short link chain for lifting purposes - Safety Part 1: General conditions of acceptance DIN EN 818-3:2008-12 EN 818-3:1999+A1:2008 (E) 6 !EN 818-6:2000+A1“, Short
39、link chain for lifting purposes - Safety Part 6: Chain slings - Specification for information for use and maintenance to be provided by the manufacturer EN 1050:1996, Safety of machinery Principles for risk assessment !EN 10025 (all parts), Hot rolled products of structural steels“ !EN 10088-3, Stai
40、nless steels Part 3: Technical delivery conditions for semi-finished products, bars, rods, wire, sections and bright products of corrosion resisting steels for general purposes EN ISO 12100-1, Safety of machinery - Basic concepts, general principles for design - Part 1: Basic terminology, methodolog
41、y (ISO 12100-1:2003) EN ISO 12100-2, Safety of machinery - Basic concepts, general principles for design - Part 2: Technical principles (ISO 12100-2:2003)“ ISO 643, Steels - Micrographic determination of the ferritic or austenitic grain size 3 Terms and definitions !For the purposes of this document
42、, the terms, definitions and symbols given in EN 818-1:1996+A1 and the following apply.“ 4 Hazards !Accidental release of a load, or release of a load due to“ failure of lifting accessories such as chain slings or their component parts puts at risk either directly or indirectly the safety or health
43、of those persons within the danger zone of lifting equipment. In order to provide the necessary strength and durability of lifting accessories this Part of EN 818 lays down requirements for the design, manufacture and testing to ensure that specified levels of performance are met. Fatigue failure ha
44、s not been identified as being a hazard when chain, having the specified levels of performance given in this Part of EN 818, is used in general lifting service. Since failure can be caused by the incorrect choice of grade and specification of lifting accessories this Part of EN 818 also gives the re
45、quirements for marking and the manufacturers certificate. Those aspects of safe use associated with good practice are given in !EN 818-6:2000+A1“. Table 1 contains those hazards, which require action to reduce risk identified by risk assessment as being specific and significant for short link chain
46、(medium tolerance) grade 4. DIN EN 818-3:2008-12 EN 818-3:1999+A1:2008 (E) 7 Table 1 Hazards and associated requirements Hazards identified in annex A of EN 1050: 1996 Relevant clause/subclause of this Part of EN 818 1 e) Mechanical hazard 5due to inadequacy 5of strength 5678!deleted text“ 95 Safety
47、 requirements 5.1 General The chain shall also conform to the appropriate requirements of !EN 818-1:1996+A1:2008“. 5.2 Dimensions 5.2.1 Nominal size of chain, dnThe nominal size of chain shall be one of the sizes listed in table 2, column 1. 5.2.2 Tolerance on material diameter (except at the weld)
48、The tolerance on material diameter for each nominal size of chain shall be in accordance with table 2, column 2. 5.2.3 Weld diameter The maximum diameter at the weld for each nominal size of chain shall be in accordance with table 2, column 3. The thickness of the steel at the weld shall nowhere be
49、less than the actual diameter of the steel adjacent to the weld. 5.2.4 Length dimensionally affected by welding The length dimensionally affected by welding e (see figure 1 of !EN 818-1:1996+A1:2008“) shall not extend by more than 0,6 dnto either side of the centre of the link. 5.2.5 Pitch and widths The dimensions of the pitch and widths of the individual links and chain shall be as specified in table 2, columns 4 to 8, and illustrated in figure 1 of !EN 818-1:1996+A1:2008“. DIN EN 818-3:2008-12 EN 818-3:1999+A
