DEUTSCHE NORM June 2006
DIN EN 14399-6{ ICS 21.060.30
Superdes
DIN EN 14399-6:2005-06
See start of validity
High-strength structural bolting asmblies for preloading –
Part 6: Plain chamfered washers
(includes Corrigendum AC:2006)
English version of DIN EN 14399-6:2006-06
Hochfeste planmäßig vorspannbare Schraubenverbindungen für den Metallbau –
Teil 6: Flache Scheiben mit Fa
(enthält Berichtigung AC:2006)
Englische Fassung DIN EN 14399-6:2006-06
Document compris 10 pages
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4年级数学计算题DIN EN 14399-6:2006-06
2
Start of validity
淘宝主播排名This standard is valid from 1 June 2006.
DIN 6916:1989-10 shall remain valid until 30 September 2007.
National foreword
This standard has been prepared by CEN/TC 185 ‘Threaded and non-threaded mechanical fasteners and accessories’ (Secretariat: Germany).
The responsible German body involved in its preparation was the Normenausschuss Mechanische Verbin-dunglemente (Fasteners Standards Committee), Technical Committee NA 067-03-04 AA Stahlbauver-schraubungen .
保鲜花
Details regarding the allocation of washers conforming to this standard to system HR or system HV bolt/nut/washer asmblies are given in the Introduction to the European Standard.
The European Standards referred to in clau 2 of the EN have been published as the corresponding DIN EN or DIN EN ISO Standards with the same number.
Corrigendum EN 14399-6:2005/AC:2006 and CMC Resolution 4 of 2005-08-05 (amendment of date of withdrawal (DOW) of conflicting national standards) have been integrated in this standard and are indicated by a vertical line in the margin. Amendments
This standard differs from DIN 6916:1989-10 as follows: a) The title has been amended. b) The scope has been amended. c) References have been updated.
d) The nominal thread diameter of the associated bolt has been specified as nominal dimension. e) Dimension e for nominal size 36 has been amended. f) For dimension e , limiting values have been specified. g) The designation has been amended.
Compared with DIN EN 14399-6:2005-06, the following amendments have been made:
a) The date of withdrawal (DOW) of conflicting national standards has been changed from September 2005
to September 2007. b) In clau 6, the term “manufacturer’s identification mark” has been replaced by “identification mark of the
manufacturer of the asmbly”. Previous editions
DIN EN 14399-6: 2005-06
DIN 6916: 1962-08, 1970-12, 1979-03, 1989-10
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EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM EN 14399-6 March
2005
藏族舞
+AC
January
2006
ICS 21.060.30
English version
High-strength structural bolting asmblies for preloading –
Part 6: Plain chamfered washers
(includes Corrigendum AC:2006)
Boulonnerie de construction métallique à haute résistance apte à la précontrainte – Partie 6: Rondelles plates chanfreinées (corrigendum AC:2006 inclus)
Hochfeste planmäßig vorspannbare Schrauben-verbindungen für den Metallbau – Teil 6: Flache Scheiben mit Fa (enthält Berichtigung AC:2006)
EN 14399-6:2005 was approved by CEN on 2004-04-30 and Corrigendum AC on 2006-01-25.
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 Management Centre or to any CEN member.
牛肉薄饼The European Standards exist 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 Management Centre has the same status as the official versions.
康同璧
CEN members are the national standards bodies of Austria, Belgium, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, and the United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
C O M I TÉE U R O PÉE N
D
E N O R M A L I S A T I O N
E U R O PÄI S C H E S K O M I T E E FÜR N O R M U N G
Management Centre: rue de Stassart, 36 B-1050 Brusls
© 2006 CEN All rights of exploitation in any form and by any means rerved
worldwide for CEN national Members.
Ref. No. EN 13599-6:2005 + AC:2006 E
EN 14399-6:2005 + AC:2006 (E)
2
Contents
Page
4 5 2 5 .6 4 Specification and reference standards .......................................................................................................7
...................................................................................................................7 6 Marking.. (7)
Bibliography (8)
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EN 14399-6:2005 + AC:2006 (E)
Foreword
This document (EN 14399-6:2005) has been prepared by Technical Committee CEN /TC 185 "Threaded and non-threaded mechanical fasteners and accessories", the cretariat of which is held by DIN.
This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorment, at the latest by September 2005, and conflicting national standards shall be withdrawn at the latest by September 2007.
This document includes a Bibliography.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
3
EN 14399-6:2005 + AC:2006 (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 asmblies. The solutions utilize different systems (HR and HV) of bolt/nut/washer asmblies, e Table 1. Both systems are well proved and it is up to the experts responsible for structural bolting whether they u the one or the other system.
It is, however, important for the performance of the asmbly to avoid mixing up the components 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.
Table 1 — Systems of bolt/nut/washer asmblies
Bolt/nut/washer asmbly System HR
Bolt/nut/washer asmbly System HV
General
requirements EN 14399-1
Bolt/nut asmbly EN 14399-3 EN 14399-4 Marking HR HV
Property class 8.8/8 10.9/10 10.9/10
Washer(s) EN 14399-5 or EN 14399-6
EN 14399-5 or EN 14399-6
Marking H H
Suitability test for preloading
EN 14399-2
EN 14399-2
Preloaded bolted asmblies are very nsitive to differences in manufacture and lubrication. Therefore it is important that the asmbly is supplied by one manufacturer who is always responsible for the function of the asmbly. For the same reason it is important that coating of the asmbly is under the control of one manufacturer.
黑夜太漫长Beside the mechanical properties of the components the functionality of the asmbly requires that the specified preload can be achieved if the asmbly is tightened with a suitable procedure. For this purpo a test method for the suitability of the components for preloading was created which will demonstrate whether the function of the asmbly is fulfilled.
It should be pointed out that compared to ISO 272 the widths across flats (large ries) for M12 and M20 have been changed to 22 mm and 32 mm respectively. The changes are justified by the follo
wing reasons.
Under the specific conditions of structural bolting the compressive stress 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 excentrically to the bolt axis.
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For the size M20, the width across flats of 34 mm is very difficult 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 is already common practice in Europe.
For the time being, the product standards EN 14399-3 to EN 14399-6 are the only European Standards which have regard to the general requirements of EN 14399-1. However, further product standards on ⎯ fit bolts,
⎯ countersunk head bolts, and ⎯ load indicating washers
for the u in high strength structural bolting for preloading are under preparation.
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