1、A. E .C .M .A. STAND AR D NORME A.E.C.M.A. A.E.C.M.A. NORM DRAFT prEN2034 Edition 1 December 1976 ENGLISH VERSION ROUND STEEL BARS DRAWN ANB/OR DESCALED DIMENSIONS - TOLERANCE h 11 AEROSPACE SERIES BARRES RONDES RUNDSTANGEN AUS STAHL EN ACIER ETIREES ET/OU ECROUTEES GEZOGEN UNDIODER GESCHLT DIMENSIO
2、NS - TOLERANCE h I1 SERIE AEROSPATI ALE ABMESSUNGEN - TOLERANZ h 11 LUFT-UND RAUMFAH RT-REIH E .- The text of this standard, which exists in three equivalent versions (English, French, German), has been drawn up under the responsability of A ECMA (Association Europenne des Constructeurs de Matriel d
3、rdspstial) and has received the agreement of Official Services concerned, It is published on yellow paper as a draft European Standard intended to receive, under the Same presentation and according to its own rules, the approval of CEN (European Committee for Standardization). I ! -, Approved by The
4、 equivalent versions in French and German languages can COMITI! DE NORMALISATION be supplied by E.N.A.E., 8, rue Moreau-Vauthier of A.E.C.M.A. 1976-08-27 92100 BOULOGNE-BILLANCOURT * FRANCE. c *- AECMA PREN2834 7b LO32333 0003782 b b - I& prEN2034 Page 2 CONTENTS 1 SCOPE AND FIELD OF APPLICATION 2 R
5、EFERENCES 3 MATERIALS 4 REQUIRED CHARACTERISTICS 5 DESIGNATION 6 MARKING I - AECMA PREN2034 76 m LOL23LL 0003783 8 o O Q d prEN2034 Page 3 DRAFT EUROPEAN STANDARD AEROSPACE SERIES prEN2034 ROUND STEEL BARS -DRAWN AND/OR DESCALED DIMENSIONS - TOLERANCE h 11 SCOPE AND FIELD OF APPLICATION This standar
6、d specifies the dimensions, tolerances and physical constants of drawn or descaled round steel bars used in aerospace construction, REFERENCES ISO/R 286 - 1962 IS0 system for limits and fits - EN2069 Acceptance conditions for semi-finished steel products - Part 1 : General, tolerances and deviations
7、 Technical specification. 1) MATERIALS The materials are defined in the material standards and technical specification, REQUI RED CHARACTER1 STIGS The dimenstons, tolerances, moss sectional areas and linear mass are defined in figure 1 and table i. DES I GNAT ION The designation of products defined
8、in this standard may include the following elements : a) name b) number of material standard c ) dimens ions d) number of this dimensional standard Bar EN2030 - IO EN2034 Example : Note - When the designation is to be codified, dimensions shall be replaced by the code letters in table 1 of this stan
9、dard, MARK1 NG Marking of the semi-finished products defined in this standard shall comply with the requirements of the technical specification, 1) In preparaton, I I I i - -7 i i AECMA PREN2034 7b I 101231l 0001789 T 9 prkNLUJ4 page 4 FIGURE 1 TABLE 1 Dimensions and tolerances in millimetres Di ame
10、 t e r Iimensional D Tolerance -0 AG - O,% 10 - 18 AH 20 AJ 22 26 -0,130 AC AM 32 AN 36 AP AU 40 - - AK -0 - 28 _L. O - - 0,360 Cross sect io na 1 area mm2 w 19,63 2827 50,27 78,54 113,l 153,9. 201.1 254,s 314.2 380,l 490.9 61 5,8 804,2 1018 1257 Linear Diameter mascl Dimensiona code D Tolerance h 1
11、1 O - 0,160 kdm e 0,154 AU 0.222 AS 1,21 I .68 O - 1 O0 - -0,220 2m AZ 2,47 BA 110 125 238 BB 3.85 6C 140 P. - 180 - BE 200 0 - 7,99 , 9,86 200 -0,290 i) Calculated on the basis of 7,85 kg/dm3 1590 123 1963 15,4 ,2463 19,3 31 17 24,5 3848 302 6027 39,5 6362 49,9 7854 61,7 9503 54,6 12270 96,3 15390 121 20110 I 158 I 25450 200 31 426 247 49090 385 Q e -/- U I ! :
