1、CEN EN*ZL3?i 87 m 34045?3?0OOL851 3 m EUROPEAN STANDARD EN 2139 NORME EUROPENNE EUROPISCHE NORM March 1989 , I UDC : 621.882.4-034.14.018.44 : 629.7 Key words : Aircraft industry -Washers - Heat resistant steels - Designation, dimensions English version Aerospace series Washers, flat heat resisting
2、steel Srie arospatiale Rondelles plates en acier rsistant chaud Luft- und Raumfahrt Scheiben aus hochwarmfestem Stahl This European Standard was acceptedby CEN an 1 988-05-26. CEN members are bound to comply with the requirements of CEN Internal Regulations which stipulate the conditionsfor giving t
3、his European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards maybe obtained on application to the CEN Central Secretariat or to any CEN member. This European Standard exists inthree official version
4、s (English, French, German). Aversion in any other language made by translation under the responsibility of a CEN member into its own language and notified to CEN Central Secretariat has the same status as the official versions. CEN members are the national standards organizations of Austria, Belgiu
5、m, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxemburg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat : Rue Brderode
6、2, B-1 O00 Bruxelles CEN ENm2339 89 W 340Y589 0003852 5 = EN 21 39 Page 2 Brief history This European Standard has been prepared by the European Association of Aerospace Manufacturers (A E C M A). After enquiries and votes carried out in accordance with the rules of this Association, this Standard h
7、as successively received the approval of the National Associations and the Official Services of the member countries of AECMA, prior to its presentation to CEN. According to the Common CEN/CENELEC Rules, following countries are bound to implement this European Standard: Austria, Belgium, Denmark, Fi
8、nland, France, Germany, Greece, Iceland, Ireland, Italy, Luxemburg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. CEN EN*:2139 - 7 3LIOq587 0003853 7 EN 2139 Page 3 1 This standard specifies the characteristics of flat heat resisting steel washers for use in aeros
9、pace applications, at temperatures below 650 OC, Scope and field of application They are intended for use primarily underneath nuts, for use underneath bolt heads the compatibility shall be checked. 2 References EN 2171, Heat resisting steel FE-PA92HT - R, 900 MPa - Bars - Aerospace series - EN 2175
10、, Heat resisting steel FE-PA93HT, solution treated and precipitation treated - Sheets and strips a 3 mm - Aerospace series EN 2424, Aerospace series - Identification marking of standard fasteners EN 2516, Aerospace series - Passivation of corrosion resisting steels 1) - 3 Required characteristics 3.
11、1 Configuration - Dimensions - Tolerances Configuration shall correspond to the figure ; dimensions and tolerances shall correspond to the figure and table 1. These dimensions apply after passivation. 3.2 Surface roughness Ra = 6,3 pm ali over unless otherwise specified. The values apply prior to pa
12、ssivation, 3.3 Material Heat resisting steel EN 2171 or EN 2175, 3,4 Surface treatment Passivation EN 2516. i) In preparation, CEN EN*213 83 W 3q04583 0001854 3 W EN 2139 Page 4 Break all corners 0,l to 0,2 mm FIGURE -Configuration TABLE 1 - Dimensions - Tolerances t i l EN 2139 Page 5 C 0,4 Of5 1 ,
13、o Code 04 05 10 Thickness TABLE 2 - Thickness coda and mmsses 1 f6 2 ,o 2,s 32 16 20 25 32 Dimensions in millimetres 016 020 025 030 035 040 050 060 070 080 1 O0 120 140 160 180 200 220 240 270 300 330 360 390 0,017 - - - - - - 0,028 - - - c - - - 0,05 - 0,08 0,16 - - - - - 0,ll 0,22 - 0,14 0,28 0,4
14、5 - 0,21 0,43 0,69 - - - 0,31 0,62 1 ,O0 1.25 - - - 0,43 0,86 1,37 1,71 - - - 0,56 1,13 1,80 225 - - - - 1,77 2,84 335 4,44 - - - 2,57 4,12 5,14 6,43 - - - 2.85 4,57 5,70 - 9,15 - - 3,14 5,02 6,27 - 10,04 - - 3,79 6,07 7,58 - 12,15 - - 4,93 7,90 9,86 - 15,80 - - - 8,47 10,57 - 16,94 - - - - 1426 - 2
15、2,85 - - - 17,80 - 28,52 - - - 3 23,02 - 36.89 - - - - 26,O - 41,76 - - - 32,30 - 51,77 - - - - 3932 - 62,85 - - - - - - - - - - - - - Diametercode I Masses (7,95 kg/dm3) kg/1000 pieces 4 Designation Each washer shall only be designated as in the following example : Descript ion block I Identity blo
16、ck WASHER Number of EN standard I 080 = Diameter code (see table 1) 20 = Thickness code (see table 2) O - 28,52 35,60 46.04 Note : If necessary the originator code S9005 may be introduced between the description black and the identity block. 5 Marking EN 2424, style C. In addition, the quantity shall be introduced (Mass or number),
