1、BRITISH STANDARD AEROSPACE SERIES BS EN 3542:1998 Inserts, screw thread, helical coil, self-locking, in heat resisting nickel base alloy NI-PH2801 (Inconel X750) The European Standard EN3542:1998 has the status of a British Standard ICS 49.030.30BSEN3542:1998 This British Standard, having been prepa
2、red under the direction of the Engineering Sector Board, was published under the authority of the Standards Board and comes into effect on 15 July 1998 BSI 05-1999 ISBN 0 580 30163 X National foreword This British Standard is the English language version of EN3542:1998. The UK participation in its p
3、reparation was entrusted by Technical Committee ACE/12, Aerospace fasteners and fastening systems, to Subcommittee ACE/12/1, Aerospace fasteners and fastening systems (International), which has the responsibility to: aid enquirers to understand the text; present to the responsible international/Euro
4、pean committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on thi subcommittee can be obtained on request to its secretary.
5、 Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Elec
6、tronic Catalogue. A British Standard does not purport to include all the necessary provisions 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. Summary of pages This d
7、ocument comprises a front cover, an inside front cover, pages i and ii, the ENtitlepage, pages2 to6 and a back cover. 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. Amendments issu
8、ed since publication Amd. No. Date CommentsBSEN3542:1998 BSI05-1999 i Contents Page National foreword Inside front cover Foreword 2 Text of EN 3542 3ii blankEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN3542 May1998 ICS49.030.30 Descriptors: Aircraft industry, screw thread, self-locking screw
9、thread, nickel alloy, heat resistant material, characteristic, dimension, designation, marking English version Aerospace series Inserts, screw thread, helical coil, self-locking, in heat resisting nickel base alloy NI-PH2801 (Inconel X750) Srie arospatiale Filets rapports, freinage interne, en allia
10、ge rsistant chaud base de nickel NI-PH2801 (Inconel X750) Luft- und Raumfahrt Draht-Gewindeeinstze, selbstsichernd, aus hochwarmfester Nickelbasislegierung NI-PH2801 (InconelX750) This European Standard was approved by CEN on23 February1998. CEN members are bound to comply with the CEN/CENELEC Inter
11、nal 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 Central Secretariat or to any CEN member
12、 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 Central Secretariat has the same status as the official versions. CEN members a
13、re the national standards bodies of Austria, Belgium, CzechRepublic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation
14、 Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1998 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 3542:1998 EEN3542:1998 BSI05-1999 2 Foreword This European Standard has been prepared by
15、the European Association of Aerospace Manufacturers (AECMA). After inquiries and votes carried out in accordance with the rules of this Association, this Standard has received the approval of the National Associations and the Official Services of the member countries of AECMA, prior to its presentat
16、ion 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 the latest by November 1998, and conflicting national standards shall be withdrawn at the latest by November 1998. According to the CEN/CENELEC Intern
17、al Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, CzechRepublic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland an
18、d theUnitedKingdom. Contents Page Foreword 2 0 Introduction 3 1 Scope 3 2 Normative references 3 3 Required characteristics 3 4 Designation 6 5 Marking 6 6 Technical specification 6 Figure 1 4 Table 1 5 Table 2 5EN3542:1998 BSI 05-1999 3 0 Introduction For design and assembly procedures see EN3044 a
19、nd EN2945. 1 Scope This standard specifies the characteristics of self-locking, helical coil, screw thread inserts in NI-PH2801, for aerospace applications. Maximum test temperature: 550C 2 Normative references This European Standard incorporates by dated or undated reference provisions from other p
20、ublications. 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 or rev
21、ision. For undated references the latest edition of the publication referred to applies. ISO 5855-2, Aerospace MJ threads Part 2: Limit dimensions for bolts and nuts. EN 2424, Aerospace series Marking of aerospace products. EN 2943, Aerospace series Inserts, screw thread, helical coil, self-locking
22、Technical specification. EN 2945, Aerospace series Inserts, screw thread, helical coil, self-locking Assembly procedure. EN 3018, Aerospace series Heat resisting alloy NI-PH2801 (NiCr16Fe7Ti3Nb1AI1) Consumable electrode remelted Cold drawn wire for the manufacture of thread inserts D k 3mm 1) . EN 3
23、044, Aerospace series Installation holes and procedures for inserts, screw thread, helical coil, self-locking Design standard. 3 Required characteristics 3.1 Configuration Dimensions Tolerances Masses See Figure 1 and Table 1 and Table 2. Dimensions and tolerances are in millimetres. 3.2 Material EN
24、 3018 3.3 Material identification Colour: yellow No chlorine-based constituents permitted in the colour identification product 1) Published as AECMA Prestandard at the date of publication of this standardEN3542:1998 4 BSI05-1999 Figure 1 EN3542:1998 BSI 05-1999 5 Table 1 Table 2 Diameter code Thread
25、 a (Associated bolt) A B C E F H min. max. min. max. min. max. min. 040 MJ40,7 0,163 5,05 0,758 0,683 0,612 0,51 0,35 0,455 0,4445 050 MJ50,8 0,209 6,25 0,866 0,775 0,7 0,598 0,4 0,52 0,5085 060 MJ61 7,4 070 MJ71 0,267 8,65 1,083 0,975 0,875 0,748 0,5 0,65 0,637 080 MJ81 9,7 100 MJ101,25 0,415 12,1
26、1,353 1,251 1,094 0,967 0,625 0,812 0,799 (concluded) Diameter code J P R 1 S U V AA max. min. max. min. min. min. max. min. max. max. min. 040 5,6 4,9 3,55 2,5 0,126 0,219 1,67 1,02 0,45 0,34 0,31 050 6,8 6,1 4,55 3,15 1,144 0,25 2,09 1,41 0,6 0,37 0,34 060 7,95 7,25 4,85 3,7 2,55 1,65 070 9,2 8,4
27、5,5 4,3 0,18 0,312 3,1 2,09 0,5 0,45 080 10 9,2 6,5 4,75 3,88 2,27 0,75 100 12,3 11,5 8 5,5 0,226 0,391 4,77 2,86 0,6 0,55 a In accordance with ISO 5855-2 Diameter code Thread a (Associated bolt) L nom. L 1 X b min. Y b max. Q Number of coils 0,25 Mass . kg/1 000 pieces 1,25 D 1,5 D 1,25 D 1,5 D 1,2
28、5 D 1,5 D 1,25 D 1,5 D 1,25 D 1,5 D 1,25 D 1,5 D 040 MJ40,7 5 6 4,47 5,47 1,5 1,5 3 3,7 4,9 6,1 0,19 0,23 050 MJ50,8 6,3 7,5 5,65 6,9 2 2 3,8 4,2 5,5 6,9 0,34 0,42 060 MJ61 7,5 9 6,75 8,25 2,3 2,3 4,5 5,5 5,4 6,8 0,61 0,75 070 MJ71 8,8 10,5 8 9,75 2,5 2,5 5,5 6,5 6,5 8 0,84 1,03 080 MJ81 10 12 9,25
29、11,25 3 3 7 7 7,5 9,4 1,12 1,38 100 MJ101,25 12,5 15 11,56 14,06 3,5 3,5 9 9 7,6 9,5 2,19 2,68 a In accordance with ISO 5855-2 b X and Y dimensions apply after installation of the thread insert.055 , + 0025 , + 0EN3542:1998 6 BSI05-1999 4 Designation EXAMPLE: NOTEIf necessary, the code19005 shall be
30、 placed between the description block and the identity block. 5 Marking EN 2424 style G; additionally style F permitted, as indicated onFigure 1. 6 Technical specification EN 2943blankBS EN 3542:1998 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent natio
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