1、BRITISH STANDARD AEROSPACE SERIES BS EN 4312:2006 Studs, coarse tolerance reduced shank, medium length thread, in heat and corrosion resisting steel, with aluminium pigmented coating Classification: 1 100 MPa (at ambient temperature) / 315 C The European Standard EN 4312:2006 has the status of a Bri
2、tish Standard ICS 49.030.20 Licensed Copy: Wang Bin, na, Thu Aug 24 02:25:10 BST 2006, Uncontrolled Copy, (c) BSIBS EN 4312:2006 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 June 2006 BSI 2006 ISBN 0 580 48532 3 National foreword This B
3、ritish Standard is the official English language version of EN 4312:2006. 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
4、international/European committee any enquiries on the interpretation, 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 it
5、s secretary. Cross-references The British Standards which 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
6、 Catalogue or of British Standards Online. This publication 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 d
7、ocument comprises a front cover, an inside front cover, the 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, Thu Aug 2
8、4 02:25:10 BST 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 4312 June 2006 ICS 49.030.20 English Version Aerospace series - Studs, coarse tolerance reduced shank, medium length thread, in heat and corrosion resisting steel, with aluminium pigmented coating -
9、Classification: 1 100 MPa (at ambient temperature) / 315 C Srie arospatiale - Goujons, ft tolrance large, filetage moyen, en acier rsistant chaud et la corrosion, avec revtement alumino-organique - Classification : 1 100 MPa ( temprature ambiante) / 315 C Luft- und Raumfahrt - Stift-Dehnschrauben, m
10、it mittlerer Gewindelnge, aus korrosionsbestndigem und hochwarmfestem Stahl, mit Aluminium pigmenttete Beschichtung - Klasse: 1 100 Mpa (bei Raumtemperatur) / 315 C This European Standard was approved by CEN on 6 February 2006. CEN members are bound to comply with the CEN/CENELEC Internal Regulation
11、s 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. This Europea
12、n 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 are the nationa
13、l standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdo
14、m. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2006 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 4312:2006: E Licens
15、ed Copy: Wang Bin, na, Thu Aug 24 02:25:10 BST 2006, Uncontrolled Copy, (c) BSIEN 4312:2006 2 Contents Page Foreword3 1 Scope 4 2 Normative references 4 3 Required characteristics.4 4 Designation 7 5 Marking .7 6 Technical specification .7 Licensed Copy: Wang Bin, na, Thu Aug 24 02:25:10 BST 2006, U
16、ncontrolled Copy, (c) BSIEN 4312:2006 3 Foreword This European Standard (EN 4312:2006) has been prepared by the European Association of Aerospace Manufacturers - Standardization (AECMA-STAN). After enquiries and votes carried out in accordance with the rules of this Association, this Standard has re
17、ceived 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 be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by Decem
18、ber 2006, and conflicting national standards shall be withdrawn at the latest by December 2006. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such paten
19、t rights. 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,
20、Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Licensed Copy: Wang Bin, na, Thu Aug 24 02:25:10 BST 2006, Uncontrolled Copy, (c) BSI4 1 Scope This standard specifies the characteristics of s
21、tuds, close tolerance shank, medium length thread, in heat and corrosion resisting steel, with aluminium pigmented coating. Classification: 1 100 MPa 1) / 315 C 2)2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, o
22、nly the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 3353-1, Aerospace Lead and runout threads Part 1: Rolled external threads. ISO 5855-2, Aerospace MJ threads Part 2: Limit dimensions for bolts and nuts. ISO 79
23、13, Aerospace Bolts and screws, metric Tolerances of form and position. ISO 8168, Aerospace Corrosion- and heat-resisting steel bolts with strength classification 1 100 MPa and MJ threads Procurement specification. EN 2424, Aerospace series Marking of aerospace products. EN 4474, Aerospace series Al
24、uminium pigmented coatings Coating methods. 3)EN 9100, Aerospace series Quality management systems Requirements (based on ISO 9001:2000) and Quality systems Model for quality assurance in design, development, production, installation and servicing (based on ISO 9001:1994). TR 3775, Aerospace series
25、Bolts and pins Materials. 4)3 Required characteristics 3.1 Configuration Dimensions Masses See Figure 1 and Tables 1 and 2. Dimensions and tolerances are expressed in millimetres and apply after coating. 3.2 Tolerances of form and position See ISO 7913. 3.3 Materials See TR 3775 (heat and corrosion
26、resisting steel, strength class: 1 100 MPa). 1) Minimum tensile strength of the material at ambient temperature. 2) Maximum temperature that the stud can withstand without continuous change in its original characteristics, after return to ambient temperature. The maximum temperature is determined by
27、 the coating. 3) Published as AECMA Prestandard at the date of publication of this standard. 4) Published as AECMA Technical Report at the date of publication of this standard. EN 4312:2006 Licensed Copy: Wang Bin, na, Thu Aug 24 02:25:10 BST 2006, Uncontrolled Copy, (c) BSI5 3.4 Surface treatments
28、EN 4474 After aluminium deposit, optional lubrication with cethylic alcohol (code E). Values in micrometres apply prior to surface treatment. Break sharp edges 0,1 to 0,4. Key 1 Thread 2 Conforms to ISO 3353-1 3 One hole diameter D 3(optional) 4 Marking aShape in this area at manufacturers option Fi
29、gure 1 Table 1 Thread a D 1D 2b D 3L 1L 3L 4Diameter code h12 h12 H13 min. + 0,3 0 050 MJ50,8 4h6h 5 1 7,5 12 L 2 2,5 060 MJ61 4h6h 6 4,6 1,4 9 14 L 2 3 080 MJ81 4h6h 8 6 1,8 12 18 L 2 3,5 100 MJ101,25 4h6h 10 7,5 15 20 L 2 4 120 MJ121,25 4h6h 12 9,2 2,3 18 22 L 2 4,5 aIn accordance with ISO 5855-2
30、bFor MJ5 and lengths above the bold line: D 2= thread major diameter. 3,2 1,6 EN 4312:2006 Licensed Copy: Wang Bin, na, Thu Aug 24 02:25:10 BST 2006, Uncontrolled Copy, (c) BSI6 Table 2 Diameter code 050 060 080 100 120 Length Code L 2Mass a Mass a Mass a Mass a Mass a 018 18 3,6 020 20 3,9 5,8 022
31、22 4,2 6,3 12,3 024 24 4,7 6,9 13,5 23 028 28 5,1 7,6 14,7 25 030 30 5,4 8,1 15,5 26 41 035 35 6,1 9,2 17,4 29 45 040 40 6,9 10,3 19 32 49 045 45 7,7 11,4 20 26 54 050 50 8,4 12,5 21 28 48 055 55 9,2 13,5 22 30 51 060 60 10 14,6 23 31 53 065 65 10,7 15,7 24 33 56 070 70 11,5 16,8 25 35 58 075 75 12,
32、3 17,9 26 37 61 080 80 13,1 19 27 39 63 085 85 20,1 28 40 66 090 90 21,2 29 42 68 095 95 30 44 71 100 100 31 46 73 105 105 32 48 76 110 110 33 50 79 aApproximate values (kg/1 000 pieces), calculated on the basis of 7,85 kg/dm 3 , given for information purposes only. They apply to studs without holes
33、. EN 4312:2006 Licensed Copy: Wang Bin, na, Thu Aug 24 02:25:10 BST 2006, Uncontrolled Copy, (c) BSI7 4 Designation EXAMPLE Description block STUD Identity block EN4312D050040E Number of this standard Hole code (see Table 3) Diameter code (see Table 1) Length code (see Table 2) Lubrication code (see
34、 3.4) NOTE If necessary, the code I9005 shall be placed between the description block and the identity block. Table 3 Hole Code with D without (hyphen) 5 Marking EN 2424, style C plus MJ, indented and Figure 1. 6 Technical specification ISO 8168, except for clauses: Approval of manufacturers: see EN
35、 9100; Qualification of studs: not applicable. EN 4312:2006 Licensed Copy: Wang Bin, na, Thu Aug 24 02:25:10 BST 2006, Uncontrolled Copy, (c) BSIBS EN BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for preparing British Sta
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