1、April 2015 Translation by DIN-Sprachendienst.English price group 8No part of this translation 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 2
2、1.060.30!%B3S“2311648www.din.deDDIN EN 14399-6High-strength structural bolting assemblies for preloading Part 6: Plain chamfered washers;English version EN 14399-6:2015,English translation of DIN EN 14399-6:2015-04Hochfeste vorspannbare Garnituren fr Schraubverbindungen im Metallbau Teil 6: Flache S
3、cheiben mit Fase;Englische Fassung EN 14399-6:2015,Englische bersetzung von DIN EN 14399-6:2015-04Boulonnerie de construction mtallique haute rsistance apte la prcontrainte Partie 6: Rondelles plates chanfreines;Version anglaise EN 14399-6:2015,Traduction anglaise de DIN EN 14399-6:2015-04Supersedes
4、DIN EN 14399-6:2006-06www.beuth.deIn case of doubt, the German-language original shall be considered authoritative.Document comprises 11 pages 03.15 DIN EN 14399-6:2015-04 2 A comma is used as the decimal marker. National foreword This document (EN 14399-6:2015) has been prepared by Technical Commit
5、tee CEN/TC 185 “Fasteners” (Secretariat: DIN, Germany). The responsible German body involved in its preparation was the DIN-Normenausschuss Mechanische Verbindungselemente (DIN Standards Committee Fasteners), Working Committee NA 067-00-07 AA Verbin-dungselemente fr den Metallbau. EN 14399-6 has bee
6、n revised in connection with the publication of EN 14399-1 as a harmonized European Standard. The European Standards referred to in Clause 2 of this document have been published as the corresponding DIN EN or DIN EN ISO Standards with the same number. The DIN Standard corresponding to the Internatio
7、nal Standard referred to in this document is as follows: ISO 272 DIN ISO 272 Amendments This standard differs from DIN EN 143 9-6:2006-06 as follows: a) the title of the German version has been changed: the word planmig has been deleted and Garnituren (assemblies) has been included; b) Table 1 conta
8、ining the overview of the composition of structural bolting assemblies and component marking has been added; c) specifications for the marking of washers have been revised. Previous editions DIN EN 143 9-6: 2005-06, 2006-06 DIN 6916: 1962-08, 1970-12, 1979-03, 1989-10 National Annex NA (informative)
9、 Bibliography DIN ISO 272, Fasteners Width across flats for hexagon products -99EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 14399-6 February 2015 ICS 21.060.30 Supersedes EN 14399-6:2005English Version High-strength structural bolting assemblies for preloading - Part 6: Plain chamfered wash
10、ers Boulonnerie de construction mtallique haute rsistance apte la prcontrainte - Partie 6 : Rondelles plates chanfreines Hochfeste vorspannbare Garnituren fr Schraubverbindungen im Metallbau - Teil 6: Flache Scheiben mit Fase This European Standard was approved by CEN on 18 October 2014. CEN members
11、 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
12、to the CEN-CENELEC 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-CENELEC Management
13、 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, Lit
14、huania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17,
15、B-1000 Brussels 2015 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 14399-6:2015 EEN 14399-6:2015 (E) 2 Contents Page Foreword 3 Introduction .4 1 Scope 6 2 Normative references 6 3 Dimensions .6 4 Specification and reference stan
16、dards .7 5 Designation 8 6 Marking .8 Bibliography 9 DIN EN 14399-6:2015-04 EN 14399-6:2015 (E) 3Foreword This document (EN 14399-6:2015) has been prepared by Technical Committee CEN/TC 185 “Fasteners”, the secretariat of which is held by DIN. This European Standard shall be given the status of a na
17、tional standard, either by publication of an identical text or by endorsement, at the latest by August 2015 and conflicting national standards shall be withdrawn at the latest by November 2016. Attention is drawn to the possibility that some of the elements of this document may be the subject of pat
18、ent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 14399-6:2005. In comparison with EN 14399-6:2005, the following modifications have been made: Table 1 containing the overview of the composition of bolting assembli
19、es and component marking has been added; specifications for the marking of washers have been revised. EN 14399 consists of the following parts, under the general title High-strength structural bolting assemblies for preloading: Part 1: General requirements; Part 2: Suitability for preloading; Part 3
20、: System HR Hexagon bolt and nut assemblies; Part 4: System HV Hexagon bolt and nut assemblies; Part 5: Plain washers; Part 6: Plain chamfered washers; Part 7: System HR Countersunk head bolt and nut assemblies; Part 8: System HV Hexagon fit bolt and nut assemblies; Part 9: System HR or HV Direct te
21、nsion indicators for bolt and nut assemblies; Part 10: System HRC Bolt and nut assemblies with calibrated preload. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulga
22、ria, 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, Slovakia, Slovenia, Spain, Sweden, Switzerland, Tur
23、key and the United Kingdom. DIN EN 14399-6:2015-04 EN 14399-6:2015 (E) 4 Introduction This document on structural bolting reflects the situation in Europe where two technical solutions exist to achieve the necessary ductility of bolt/nut/washer(s) assemblies. These solutions consist of two different
24、 systems (HR and HV) of bolt/nut/washer assemblies, see Table 1. Both systems are well proven and it is the responsibility of the experts using structural bolting whether they use the one or the other system. It is, however, important for the performance of the assembly to avoid mixing up the compon
25、ents of both systems. Therefore, bolts and nuts for both systems are standardized in one single part of this European Standard each and the marking of the components of the same system is uniform. Preloaded bolted assemblies are very sensitive to differences in manufacture and lubrication. Therefore
26、, it is important that the bolting assemblies are supplied by one manufacturer who is always responsible for the functionality of the bolting assemblies. For the same reason it is important that coating of the bolting assemblies is under the control of one manufacturer. Beside the mechanical propert
27、ies of the components, the functionality of the bolting assemblies requires that the specified preload can be achieved if the bolting assemblies are tightened with a suitable procedure. For this purpose a test method for the suitability of the bolting assemblies for preloading was created, which wil
28、l demonstrate whether the functionality of the bolting assemblies is fulfilled. It should be pointed out that compared to ISO 272 the widths across flats (large series) for M12 and M20 have been changed to 22 mm and 32 mm respectively. These changes are justified by the following reasons. Under the
29、specific conditions of structural bolting, the compressive stresses under the bolt head or nut for the sizes M12 may become too large with the width across flats of 21 mm, especially if the washer is fitted eccentrically to the bolt axis. For the size M20, the width across flats of 34 mm is very dif
30、ficult to be produced. The change to 32 mm is primarily motivated by economics but it should also be pointed out that the width across flats of 32 mm was common practice in Europe. DIN EN 14399-6:2015-04 EN 14399-6:2015 (E) 5Table 1 Composition of high-strength structural bolting assemblies and comp
31、onent marking Type of bolting assembly System HR System HV System HRC General requirements EN 14399-1 Suitability for preloading EN 14399-2 and, if any, additional testing specified in the product standard Bolt and nut EN 14399-3 EN 14399-7 EN 14399-4 EN 14399-8 EN 14399-10 MarkingBolt HR8.8 HR10.9
32、HR8.8 HR10.9 HV10.9 HVP10.9 HRC10.9 Nut HR8 or HR10 HR10 HR8 or HR10 HR10 HV10 HV10 HR10 HRD10 Washer(s) EN 14399-5aor EN 14399-6 EN 14399-6 EN 14399-5aor EN 14399-6 Marking H or HRbH or HVbH or HRbH or HRb or HDcDirect tension indicator and nut face washer or bolt face washer, if any EN 14399-9 Not
33、 applicable MarkingDirect tension indicator H8 H10 H8 H10 H10 Nut face washer HN HN Bolt face washer HB Not applicable HB aEN 14399-5 can only be used under the nut. bAt the choice of the manufacturer. cMandatory mark for washers with enlarged outer diameter according to EN 14399-5 only. DIN EN 1439
34、9-6:2015-04 EN 14399-6:2015 (E) 6 1 Scope This European Standard specifies, together with EN 14399-1 and EN 14399-2, hardened and tempered chamfered plain washers with chamfer intended for bolting assemblies with large series hexagon high-strength structural bolts and nuts with thread sizes from M12
35、 to M36 inclusive. Washers according to this standard are not intended to be used in direct contact with oversized or slotted holes. NOTE Attention is drawn to the importance of ensuring that the washers are correctly used if satisfactory results are to be obtained. For recommendations concerning pr
36、oper application, reference to EN 1090-2 is made. 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 editi
37、on of the referenced document (including any amendments) applies. EN 14399-1, High-strength structural bolting assemblies for preloading - Part 1: General requirements EN 14399-2, High-strength structural bolting assemblies for preloading - Part 2: Suitability for preloading EN ISO 3269, Fasteners -
38、 Acceptance inspection (ISO 3269) EN ISO 4759-3, Tolerances for fasteners - Part 3: Plain washers for bolts, screws and nuts - Products grades A and C (ISO 4759-3) EN ISO 10684, Fasteners - Hot dip galvanized coatings (ISO 10684) 3 Dimensions See Figure 1 and Table 2. Figure 1 Dimensions For coated
39、washers the above dimensions apply prior to coating. DIN EN 14399-6:2015-04 EN 14399-6:2015(E)7 Table 2 Dimensions Dimensions in millimetres Nominal size d (nominal thread diameter of associated bolts) 12 (14)a16 (18)a20 22 24 27 30 36 d1min. 13 15 17 19 21 23 25 28 31 37 max. 13,27 15,27 17,27 19,3
40、3 21,33 23,33 25,33 28,52 31,62 37,62 d2min. 23,48 27,48 29,48 33,38 36,38 38,38 43,38 49,00 54,80 64,80 max. 24 28 30 34 37 39 44 50 56 66 h nom. 3 3 4 4 4 4 4 5 5 6 min. 2,7 2,7 3,7 3,7 3,7 3,7 3,7 4,4 4,4 5,4 max. 3,3 3,3 4,3 4,3 4,3 4,3 4,3 5,6 5,6 6,6 e nom. = min. 0,5 0,5 0,75 0,75 0,75 0,75 0
41、,75 1 1 1,25 max. 1,0 1,0 1,5 1,5 1,5 1,5 1,5 2,0 2,0 2,5 c min. 1,6 1,6 1,6 2,0 2,0 2,0 2,0 2,5 2,5 2,5 max. 1,9 1,9 1,9 2,5 2,5 2,5 2,5 3,0 3,0 3,0 aSizes in brackets are non-preferred sizes. 4 Specification and reference standards Table 3 Specifications and reference standards Material Steel Gene
42、ral requirements EN 14399-1 and EN 14399-2 Mechanical properties Hardness range 300 HV to 370 HV Tolerances Product grade A European Standard EN ISO 4759-3 Finish CoatingaUncoated as processedbHot dip galvanized EN ISO 10684 Others to be agreedcWorkmanship Parts shall be uniform and free of irregula
43、rities or detrimental defects. No protruding burrs shall appear on the washer. Acceptability For acceptance procedure, see EN ISO 3269. aAttention is drawn to the need to consider the risk of hydrogen embrittlement when selecting an appropriate surface treatment process (e.g. cleaning and coating),
44、see the relevant coating standards. b“As processed“ means the normal finish resulting from heat treatment with a light coating of oil. cOther coatings may be negotiated between the purchaser and the manufacturer provided they do not impair the mechanical properties or the functional characteristics.
45、 Coatings of cadmium or cadmium alloys are not permitted. DIN EN 14399-6:2015-04 EN 14399-6:2015(E)8 5 Designation EXAMPLE 1 A hardened and tempered chamfered plain washer for high-strength structural bolting for preloading, of nominal size d = 16 mm, uncoated, is designated as follows: Washer EN 14
46、399-6 16 EXAMPLE 2 A hardened and tempered chamfered plain washer for high-strength structural bolting for preloading, of nominal size d = 16 mm, with hot dip galvanized coating (tZn), is designated as follows: Washer EN 14399-6 16 tZn 6 Marking Hardened and tempered chamfered washers shall be marke
47、d with at least the manufacturers trade (identification) mark and the letter H. The manufacturer may decide to mark washers with HR or HV (instead of H marking) when they are supplied as component of bolting assemblies of system HR or HV respectively. The marking shall be indented on the non-chamfer
48、ed side. Key 1 identification mark of the manufacturer of the assembly Figure 2 Example of marking DINEN 14399-6:2015-04EN 14399-6:2015 (E) 9 Bibliography 1 EN 1090-2, Execution of steel structures and aluminium structures - Part 2: Technical requirements for steel structures 2 EN 14399-3, High-strength structural bolting assemblies for preloading - Part 3: System HR - Hexagon bolt and nut assemblies 3 EN 14399-4, High-strength structural bolting assemblies for preloading -
