1、BS EN 3228:2010ICS 49.030.30NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDAerospace series Nuts hexagonal, plain, reduced height, normal across flats, in steel, cadmium plated Classification: 900 MPa (at ambient temperature) / 235 CLicensed Copy: Wang Bin, ISO
2、/EXCHANGE CHINA STANDARDS, 07/06/2010 04:11, Uncontrolled Copy, (c) BSIThis British Standardwas published under theauthority of the StandardsPolicy and StrategyCommittee on 28 February2010 BSI 2010ISBN 978 0 580 70525 0Amendments/corrigenda issued since publicationDate CommentsBS EN 3228:2010Nationa
3、l forewordThis British Standard is the UK implementation of EN 3228:2010.The UK participation in its preparation was entrusted to TechnicalCommittee ACE/12, Aerospace fasteners and fastening systems.A list of organizations represented on this committee can be obtained onrequest to its secretary.This
4、 publication does not purport to include all the necessary provisionsof a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunityfrom legal obligations.Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 07/06/2010 04:11, Uncontrolled
5、Copy, (c) BSIBS EN 3228:2010EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 3228 January 2010 ICS 49.030.30 English Version Aerospace series - Nuts, hexagonal, plain, reduced height, normal across flats, in steel, cadmium plated - Classification: 900 MPa (at ambient temperature) / 235 C Srie ar
6、ospatiale - crous hexagonaux ordinaires, hauteur rduite, surplats normaux, en acier, cadmis - Classification: 900 MPa ( temprature ambiante) / 235 CLuft- und Raumfahrt - Einfache Sechskantmuttern mit reduzierter Hhe, normaler Schlsselweite, aus Stahl, verkadmet - Klasse: 900 MPa (bei Raumtemperatur)
7、 / 235 C This European Standard was approved by CEN on 11 December 2009. 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 bibliogra
8、phical references concerning such national standards may be obtained on application to the CEN Management Centre 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
9、 CEN member into its own language and notified to the CEN Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland
10、, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Ma
11、rnix 17, B-1000 Brussels 2010 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 3228:2010: ELicensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 07/06/2010 04:11, Uncontrolled Copy, (c) BSIBS EN 3228:2010EN 3228:2010 (E) 2 Contents
12、 Page Foreword 31 Scope 42 Normative references 43 Required characteristics .54 Designation 75 Marking .86 Technical specification .8Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 07/06/2010 04:11, Uncontrolled Copy, (c) BSIBS EN 3228:2010EN 3228:2010 (E) Foreword This document (EN 3228:2010
13、) has been prepared by the Aerospace and Defence Industries Association of Europe - Standardization (ASD-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 th
14、e member countries of ASD, 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 July 2010, and conflicting national standards shall be withdrawn at the latest by July
15、2010. 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 patent rights. According to the CEN/CENELEC Internal Regulations, the national standards organi
16、zations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Port
17、ugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 07/06/2010 04:11, Uncontrolled Copy, (c) BSIBS EN 3228:2010EN 3228:2010 (E) 4 1 Scope This standard specifies the characteristics of plain, hexagonal nuts, red
18、uced height, normal across flats, in steel, cadmium plated. Classification: 900 MPa1) / 235 C2). 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
19、edition of the referenced document (including any amendments) applies. EN 2133, Aerospace series Cadmium plating of steels with specified tensile strength 1 450 MPa, copper, copper alloys and nickel alloys EN 2205, Aerospace series Steel FE-PL1502 (25CrMo4) 900 MPa Rm 1 100 MPa Bars De 40 mm EN 2424
20、, Aerospace series Marking of aerospace products EN 2438, Aerospace series Steel FE-PL2102 (35NiCr6) 900 MPa Rm 1 100 MPa Bars De 40 mmEN 2448, Aerospace series Steel FE-PL1503 (35CrMo4) 900 MPa Rm 1 100 MPa Bars De 40 mm EN 3513, Aerospace series Steel FE-PL711 Hardened and tempered 900 Rm 1 100 MP
21、a Bar and wire De 45 mm3) EN 9100, Quality Management Systems Requirements for Aviation, Space and Defense Organizations TR 3823, Aerospace series Materials for plain, slotted and self-locking by plastic ring hexagonal nuts4) ISO 5855-2, Aerospace MJ threads Part 2: Limit dimensions for bolts and nu
22、ts ISO 8788, Aerospace Nuts, metric Tolerances of form and position ISO 9139, Aerospace Nuts, plain or slotted (castellated) Procurement specification ISO 9609, Aerospace Nuts, hexagonal, plain, reduced height, normal across flats, with MJ threads, classifications: 450 MPa (at ambient temperature) /
23、120 C, 450 MPa (at ambient temperature) /235 C, 600 MPa (at ambient temperature) /425 C, 900 MPa (at ambient temperature) /235 C, 900 MPa (at ambient temperature) /315 C, 900 MPa (at ambient temperature) /650 C, 1 100 MPa (at ambient temperature) /235 C, 1 100 MPa (at ambient temperature) /730 C and
24、 1 250 MPa (at ambient temperature)/600 C Dimensions 1) Corresponds to strength class of the associated bolt, the 100 % load of which it is able to withstand, when tested at ambient temperature, without breaking or cracking. 2) Maximum temperature that the nut is able to whithstand, without permanen
25、t alteration to its original characteristics, after ambient temperature has been restored. The maximum temperature is conditioned by the surface treatment. 3) Published as ASD-STAN Prestandard at the date of publication of this standard. 4) Published as ASD-STAN Technical Report at the date of publi
26、cation of this standard. Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 07/06/2010 04:11, Uncontrolled Copy, (c) BSIBS EN 3228:2010EN 3228:2010 (E) 3 Required characteristics 3.1 Configuration Dimensions Masses See Figure 1 and Table 1. Dimensions and tolerances are in conformity with ISO 96
27、09, expressed in millimetres and apply after surface treatment. 3.2 Materials EN 2205, EN 2438, EN 2448, EN 3513 or TR 3823. 3.3 Surface treatment EN 2133, 5 m minimum on threads and all surfaces which can be contacted by a 20 mm diameter ball. On all other surfaces, a continuous cadmium plating sha
28、ll be present. Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 07/06/2010 04:11, Uncontrolled Copy, (c) BSIBS EN 3228:2010EN 3228:2010 (E) 6 These values in micrometres apply before surface treatment. The values do not apply to threads the surface texture of which will be achieved by usual ma
29、nufacturingmethods. Break sharp edges 0,1 to 0,4. Details of form not stated are at the manufacturers option. Key 1 Thread 2 Marking 3 Two holes U optional aFrom either face bDiameter M may be tangential to, but shall not intrude on the flats. cApplicable to both face dAll forms of entry (chamfer or
30、 radius) option within these limiting dimensions Tolerances of form and position shall be in conformity with ISO 8788. Figure 1 6,3 1,6 b, cLicensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 07/06/2010 04:11, Uncontrolled Copy, (c) BSIBS EN 3228:2010EN 3228:2010 (E) Table 1 Diameter code Thread
31、a E F H L M N U V W Mass kg/1 000 pieces approx. min. h14 min. max. min. H13 0,2 min. 040 MJ40,7-4H6H 7,6 7 h12 2,6 4,2 + 0,60 6,4 0,5 0,2 b bb0,65 050 MJ50,8-4H6H 8,7 8 3 5,2 7,4 0,9 060 MJ61-4H5H 10,9 10 h13 3,5 6,3 + 0,80 9,3 1 3,9 1,4 1,6 070 MJ71-4H5H 12 11 4 7,3 10,2 4,4 1,6 2,1 080 MJ81-4H5H
32、14,3 13 8,3 12,2 5 3,1 100 MJ101,25-4H5H 18,9 17 5 10,3 16 0,6 0,3 1,5 6,9 2,1 6,9 120 MJ121,25-4H5H 21,1 19 6 12,3 18 8 2,6 9,7 140 MJ141,5-4H5H 24,5 22 7 14,4 21 9,6 3,1 15 160 MJ161,5-4H5H 26,8 24 8 16,4 23 10,7 3,6 19,4 180 MJ181,5-4H5H 30,2 27 9 18,4 26 12 4,1 27 200 MJ201,5-4H5H 33,6 30 10 20,
33、4 29 13,4 4,6 37 220 MJ221,5-4H5H 35,8 32 11 22,4 30,9 14,4 5 49 240 MJ242-4H5H 40,4 36 12 24,5 34,9 16,1 5,5 65 aIn accordance with ISO 5855-2. bLockwire holes not provided for these diameters. 4 Designation EXAMPLE Description block NUT Identity block EN3228H060 Number of this standard Holes code
34、(see Table 2) Diameter code (see Table 1) NOTE If necessary the originator code I9005 shall be placed between the description block and the identity block. Table 2 Option Code Lockwire holes H No hole (hyphen) Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 07/06/2010 04:11, Uncontrolled Copy
35、, (c) BSIBS EN 3228:2010EN 3228:2010 (E) 8 5 Marking See Table 3. Table 3 Diameter code EN 2424 Style 040 to 070 N 080 to 160 C 180 to 240 A 6 Technical specification ISO 9139, except for approval of manufacturers: see EN 9100. Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 07/06/2010 04:11,
36、 Uncontrolled Copy, (c) BSIBS EN 3228:2010This page has been intentionally left blankLicensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 07/06/2010 04:11, Uncontrolled Copy, (c) BSIBS EN3228:2010BSI GroupHeadquarters 389Chiswick High Road,London, W4 4AL, UKTel +44 (0)20 8996 9001Fax +44 (0)20 899
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