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    BS EN 2914-1996 Washers flat large diameter in heat resisting steel passivated《钝化耐高温钢的大直径扁平垫圈》.pdf

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    BS EN 2914-1996 Washers flat large diameter in heat resisting steel passivated《钝化耐高温钢的大直径扁平垫圈》.pdf

    1、BRITISH STANDARD AEROSPACE SERIES BS EN 2914:1996 Washers, flat, large diameter, in heat resisting steel, passivated The European Standard EN2914:1996 has the status of a BritishStandard ICS49.040.20BS EN2914:1996 This BritishStandard, having been prepared under the directionof the Engineering Secto

    2、rBoard, was published underthe authority of the Standards Board and comesintoeffect on 15June1996 BSI12-1999 The following BSI references relate to the work on this standard: Committee reference ACE/12 Draft for comment 88/76306 DC ISBN 0 580 25938 2 Committees responsible for this BritishStandard T

    3、he preparation of this BritishStandard was entrusted to Technical Committee ACE/12, Aerospace fasteners and fastening systems, upon which the following bodies were represented: Association of Electronic, Telecommunications and Business Equipment Industries British Industrial Fasteners Federation Min

    4、istry of Defence Society of British Aerospace Companies Amendments issued since publication Amd. No. Date CommentsBS EN2914:1996 BSI 12-1999 i Contents Page Committees responsible Inside front cover National foreword ii Foreword 2 1 Scope 3 2 Normative references 3 3 Required characteristics 3 4 Des

    5、ignation 4 5 Marking 4 6 Quality assurance 4 Figure 1 3 Table 1 4 List of references Inside back coverBS EN2914:1996 ii BSI 12-1999 National foreword This BritishStandard has been prepared by Technical Committee ACE/12 and is the English language version of EN2914:1996 Aerospace series Washers, flat

    6、, large diameter, in heat resisting steel, passivated, published by the European Committee for Standardization (CEN). EN2914:1996 was produced as a result of international discussions in which the United Kingdom took an active part. A British Standard does not purport to include all the necessary pr

    7、ovisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Cross-references Publication referred to Corresponding BritishStandard EN2000:1991 BS EN2000:1992 Quality as

    8、surance. EN aerospace products. Approval of the quality system of manufacturers EN2424:1995 BS EN2424:1995 Marking of aerospace products Summary of pages This document comprises a front cover, an inside front cover, pagesi andii, the EN title page, pages2 to4, an inside back cover and a back cover.

    9、This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN2914 March1996 ICS49.040.20 Descriptors: Aircraft industry, washer, plain washer,

    10、heat resistant steel, dimension, designation English version Aerospace series Washers, flat, large diameter, in heat resisting steel, passivated Srie arospatiale Rondelles plates larges, en acier rsistant chaud, passives Luft- und Raumfahrt Scheiben, flach, groer Auendurchmesser, aus hochwarmfestem

    11、Stahl, passiviert This European Standard was approved by CEN on1995-08-31. 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 bibliog

    12、raphical references concerning such national standards may be obtained on application to the Central Secretariat 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

    13、 CEN member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Sp

    14、ain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1996 All rights of reproduction and communication in any form and by any means reserved in al

    15、l countries to CEN and its members Ref. No. EN2914:1996 EEN2914:1996 BSI 12-1999 2 Foreword This European Standard has been prepared by the European Association of Aerospace Manufacturers (AECMA). After inquiries and votes carried out in accordance with the rules of this Association, this Standard h

    16、as successively received the approval of the National Associations and the Official Services of the members countries of AECMA, prior to its presentation to CEN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at

    17、the latest by September1996, and conflicting national standards shall be withdrawn at the latest by September1996. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Denma

    18、rk, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.EN2914:1996 BSI 12-1999 3 1 Scope This standard specifies the characteristics of flat washers, large diameter, in heat resisting steel, passivated,

    19、for maximum operating temperature650 C, for aerospace applications. 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

    20、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. EN2000, Aerospace series Qualit

    21、y assurance EN aerospace products Approval of the quality system of manufacturers. EN2171, Heat resisting steel FE-PA92-HT R m U 900MPa Bars Aerospace series 1) . EN2175, Heat resisting steel FE-PA93-HT Solution treated and precipitation treated Sheets and strips ak3mm Aerospace series 1) . EN2424,

    22、Aerospace series Marking of aerospace products. EN2516, Aerospace series Passivation of corrosion resistant steels and decontamination of nickel base alloys 1) . 3 Required characteristics 3.1 Configuration Dimensions Masses See Figure 1 and Table 1. Dimensions and tolerances are expressed in millim

    23、etres and apply after surface treatment. 3.2 Materials EN2171 or EN2175 3.3 Surface treatment EN2516 1) Published as AECMA Standard at the date of publication of this standard Figure 1 EN2914:1996 4 BSI 12-1999 Table 1 4 Designation EXAMPLE: NOTEIf necessary, the codeI9005 shall be placed between th

    24、e description block and the identity block. 5 Marking EN2424, style G 6 Quality assurance EN2000 Diameter code D 1 D 2 D 3 S Mass b H13 h14 nom. Tol. Thickness code 10% a 030 3,2 9 3,8 06 0,6 0,26 10 1 0,44 040 4,2 12 4,8 06 0,6 0,47 10 1 0,78 050 5,2 15 6 10 1 1,22 16 1,6 1,95 060 6,2 18 7,4 12 1,2

    25、 2,11 16 1,6 2,81 070 7,2 21 8,4 12 1,2 2,78 16 1,6 3,71 080 8,2 24 9,4 16 1,6 5,02 25 2,5 7,85 100 10,2 30 11,6 20 2 9,81 25 2,5 12,3 120 12,2 36 13,8 20 2 14,1 25 2,5 17,7 a Includes also the flatness tolerance. b Approximate values (kg/1000 pieces), calculated on the basis of7,85kg/dm 3 , given f

    26、or information purposes only + 0,1 0 + 0,2 0 + 0,3 0BS EN2914:1996 BSI 12-1999 List of references See national foreword.BS EN 2914:1996 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent national body responsible for preparing BritishStandards. It presents

    27、 the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter. Revisions BritishStandards are updated by amendment or revision. Users of BritishStandards should make sure that they possess the latest amendments or editions. It is the constant aim of BSI to i

    28、mprove the quality of our products and services. We would be grateful if anyone finding an inaccuracy or ambiguity while using this BritishStandard would inform the Secretary of the technical committee responsible, the identity of which can be found on the inside front cover. Tel:02089969000. Fax:02

    29、089967400. BSI offers members an individual updating service called PLUS which ensures that subscribers automatically receive the latest editions of standards. Buying standards Orders for all BSI, international and foreign standards publications should be addressed to Customer Services. Tel:02089969

    30、001. Fax:02089967001. In response to orders for international standards, it is BSI policy to supply the BSI implementation of those that have been published as BritishStandards, unless otherwise requested. Information on standards BSI provides a wide range of information on national, European and in

    31、ternational standards through its Library and its Technical Help to Exporters Service. Various BSI electronic information services are also available which give details on all its products and services. Contact the Information Centre. Tel:02089967111. Fax:02089967048. Subscribing members of BSI are

    32、kept up to date with standards developments and receive substantial discounts on the purchase price of standards. For details of these and other benefits contact Membership Administration. Tel:02089967002. Fax:02089967001. Copyright Copyright subsists in all BSI publications. BSI also holds the copy

    33、right, in the UK, of the publications of the international standardization bodies. Except as permitted under the Copyright, Designs and Patents Act 1988 no extract may be reproduced, stored in a retrieval system or transmitted in any form or by any means electronic, photocopying, recording or otherw

    34、ise without prior written permission from BSI. This does not preclude the free use, in the course of implementing the standard, of necessary details such as symbols, and size, type or grade designations. If these details are to be used for any other purpose than implementation then the prior written permission of BSI must be obtained. If permission is granted, the terms may include royalty payments or a licensing agreement. Details and advice can be obtained from the Copyright Manager. Tel:02089967070.


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