1、BRITISH STANDARD AEROSPACE SERIES BS EN 4303:2005 Sleeves, tubular, for tension screws with flush head, in corrosion resisting steel, passivated, (0,25 mm wall thickness) The European Standard EN 4303:2005 has the status of a British Standard ICS 49.030.99 Licensed Copy: Wang Bin, na, Fri Apr 14 03:
2、38:25 BST 2006, Uncontrolled Copy, (c) BSIBS EN 4303:2005 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 25 January 2006 BSI 25 January 2006 ISBN 0 580 47575 1 National foreword This British Standard is the official English language version
3、of EN 4303:2005. The UK participation in its preparation was entrusted to Technical Committee ACE/12, Aerospace fasteners and fastening systems, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the int
4、erpretation, or proposals for change, and keep UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which
5、 implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publicati
6、on does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, t
7、he EN title page, pages 2 to 7 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date Comments Licensed Copy: Wang Bin, na, Fri Apr 14 03:38:25 BST 2006, Uncontrolled Copy, (c) BSIEUROPEANST
8、ANDARD NORMEEUROPENNE EUROPISCHENORM EN4303 December2005 ICS49.030.99 EnglishVersion AerospaceseriesSleeves,tubular,fortensionscrewswith flushhead,incorrosionresistingsteel,passivated,(0,25mm wallthickness) SriearospatialeDouillestubulaires,pourvisdetraction ttefraise,enacierrsistantlacorrosion,pass
9、ives, (paisseurdeparoi0,25mm) LuftundRaumfahrtHlsenfrSenkschraubenmit Zugbeanspruchung,auskorrosionsbetndigemStahl, passiviert,(Wanddicke0,25mm) ThisEuropeanStandardwasapprovedbyCENon26October2005. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthi
10、sEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheCentralSecretariatortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyother
11、languagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCentralSecretariathasthesamestatusast heofficial versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,Cyprus,CzechRepublic,Denmark,Estonia,Finland,France, Germany,Greece,Hungary,Iceland,Irela
12、nd,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norway,Poland,Portugal, Slovakia, Slovenia,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2005CEN Allrightsofex
13、ploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN4303:2005:E Licensed Copy: Wang Bin, na, Fri Apr 14 03:38:25 BST 2006, Uncontrolled Copy, (c) BSIEN 4303:2005 2 Contents Page Foreword 3 1 Scope .4 2 Normative references .4 3 Terms and definitions.4 4 Required charact
14、eristics 4 5 Designation .7 6 Marking 7 7 Technical specification.7 Licensed Copy: Wang Bin, na, Fri Apr 14 03:38:25 BST 2006, Uncontrolled Copy, (c) BSIEN 4303:2005 3 Foreword This European Standard (EN 4303:2005) has been prepared by the European Association of Aerospace Manufacturers - Standardiz
15、ation (AECMA-STAN). After enquiries 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 presentation to CEN. This European Standard shall
16、be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by June 2006, and conflicting national standards shall be withdrawn at the latest by June 2006. Attention is drawn to the possibility that some of the elements of this document may
17、 be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria,
18、 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 the United Kingdom. Licensed Copy: Wang Bin, na, Fri
19、 Apr 14 03:38:25 BST 2006, Uncontrolled Copy, (c) BSI4 1 Scope This standard specifies the characteristics and technical requirements of tubular sleeves for tension screws with flush head, which may be plain or provided with a series of annular grooves, in corrosion resisting steel, passivated, with
20、 a 0,25 mm wall thickness, for maximum operating temperature 650 C, for aerospace applications. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest e
21、dition of the referenced document (including any amendments) applies. ISO 2859-1, Sampling procedures for inspection by attributes Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection. EN 2175, Aerospace series Heat resisting alloy FE-PA2602 (X4NiCrTiMoV26-15)
22、 Solution treated and precipitation treated Sheet, strip and plate 0,5 mm a 10 mm R m 850 MPa. 1)EN 2424, Aerospace series Marking of aerospace products. EN 2516, Aerospace series Passivation of corrosion resisting steels and decontamination of nickel base alloys. 3 Terms and definitions For the pur
23、poses of this standard, the following terms and definitions apply. 3.1 crack rupture in the material which may extend in any direction and which may be intercrystalline or transcrystalline in character 3.2 seam open surface defect which is the result of the extrusion of the material 3.3 lap surface
24、defect caused by folding over metal fins or sharp corners and then rolling or forging them into the surface 4 Required characteristics 4.1 Configuration - Dimensions - Masses See Figure 1 and Tables 1 and 2. Dimensions and tolerances are expressed in millimetres and apply after surface treatment. 1)
25、 Published as AECMA Prestandard at the date of publication of this standard. EN 4303:2005 Licensed Copy: Wang Bin, na, Fri Apr 14 03:38:25 BST 2006, Uncontrolled Copy, (c) BSI5 4.2 Material EN 2175, received in the annealed condition and cold work during manufacture 4.3 Surface treatment EN 2516 Val
26、ues in micrometres apply prior to surface treatment. Remove sharp edges 0,1 to 0,2. Key 1 Z: Number of grooves. The Pitch of groove = 2 aUnspecified dimensions: as plain form bAt manufacturers option cForm of groove at manufacturers option Figure 1 Plain form (code “P“) Grooved form (code “G“) a3,2
27、0,8 3,2 EN 4303:2005 Licensed Copy: Wang Bin, na, Fri Apr 14 03:38:25 BST 2006, Uncontrolled Copy, (c) BSI6 Table 1 D 1D 2D 3L 2L 3L 4L 5R Z Diameter codemax. min. 0,3 max. min. 0,5 0,5 + 0,25 0,05 050 4,999 4,96 10 5,499 5,474 2,1 2,22 5,5 060 5,999 5,96 12 6,499 7,474 2,6 2,72 4 7 080 7,994 7,955
28、16 8,494 8,47 3,4 3,52 7 6 100 9,994 9,955 20 10,49410,47 4,2 4,32 6 10 5 120 11,994 11,995 24 12,49412,47 5 5,12 0,5 Table 2 Diameter code 050 060 080 100 120 Length Form code acode L 1 0 5 0, +Mass b030 3 0,218 045 4,5 0,267 0,293 060 6 0,315 0,364 0,520 075 7,5 0,364 0,435 0,597 0,812 090 9 0,412
29、 0,505 0,676 0,906 105 10,5 0,461 0,576 0,749 1,001 1,196 120 12 0,509 0,647 0,825 1,096 1,309 135 13,5 0,558 0,718 0,902 1,190 1,422 150 15 0,606 0,789 0,981 1,285 1,536 165 16,5 0,655 0,859 1,054 1,380 1,649 180 18 0,703 0,930 1,130 1,474 1,762 195 19,5 0,752 1,001 1,206 1,569 1,875 210 21 0,800 1
30、,072 1,287 1,664 1,989 225 22,5 0,849 1,143 1,359 1,758 2,102 240 24 0,897 1,213 1,435 1,853 2,215 P 250 25 0,930 1,260 1,485 1,916 2,290 G 250 25 0,930 1,260 1,485 1,916 2,290 aSee Figure 1. bApproximate values (kg/1 000 pieces), calculated on the basis of 7,85 kg/dm 3 , given for information purpo
31、ses onlyEN 4303:2005 Licensed Copy: Wang Bin, na, Fri Apr 14 03:38:25 BST 2006, Uncontrolled Copy, (c) BSI7 5 Designation EXAMPLE Description block SLEEVE Identity block EN4303P050045 Number of this standard Form code (see Table 2 and Figure 1) Diameter code (see Table 1) Length code (see Table 2) N
32、OTE If necessary, the code I9005 shall be placed between the description block and the identity block. 6 Marking EN 2424, style G 7 Technical specification 7.1 Manufacture The sleeves shall be formed by a drawing process from sheet or strip stock to form a one piece tubular section and head. 7.2 Sur
33、face appearance The sleeves shall be free from cracks, seams and laps. Under visual examination, the sleeves may show axial flow lines in the tubular section typical of a drawn sleeve. The flow lines shall be continuous at the fillet radius. A slight visible orange peel effect is also permissible. 7
34、.3 Sampling In conformity with ISO 2859-1, using normal or reduced inspection methods. The acceptance quality limit (AQL) is 1 %. EN 4303:2005 Licensed Copy: Wang Bin, na, Fri Apr 14 03:38:25 BST 2006, Uncontrolled Copy, (c) BSIBS EN 4303:2005 BSI 389 Chiswick High Road London W4 4AL BSI British Sta
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