1、October 2016 English price group 12No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 77.150.10!%nP“2577545www.din.deD
2、IN EN 755-9Aluminium and aluminium alloys Extruded rod/bar, tube and profiles Part 9: Profiles, tolerances on dimensions and form;English version EN 7559:2016,English translation of DIN EN 755-9:2016-10Aluminium und Aluminiumlegierungen Stranggepresste Stangen, Rohre und Profile Teil 9: Profile, Gre
3、nzabmae und Formtoleranzen;Englische Fassung EN 7559:2016,Englische bersetzung von DIN EN 755-9:2016-10Aluminium et alliages daluminium Barres, tubes et profils fils Partie 9: Profils, tolrances sur dimensions et forme;Version anglaise EN 7559:2016,Traduction anglaise de DIN EN 755-9:2016-10Supersed
4、esDIN EN 7559:200806 andDIN EN 7559 Corrigendum 1:200902www.beuth.deDocument comprises 22 pagesDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.09.16 DIN EN 755-9:2016-10 2 A comma is used as the decimal marker. National foreword Thi
5、s document (EN 755-9:2016) has been prepared by Technical Committee CEN/TC 132 “Aluminium and aluminium alloys” (Secretariat: AFNOR, France). The responsible German body involved in its preparation was DIN-Normenausschuss Nichteisenmetalle (DIN Standards Committee Nonferrous Metals), Working Committ
6、ee NA 066-01-04 AA Strangpresserzeugnisse. Amendments This standard differs from DIN EN 755-9:2008-06 and DIN EN 755-9 Corrigendum 1:2009-02 as follows: a) in Subclause 3.1.1, information on dimension H has been expanded; b) in Subclause 4.2 “Straightness”, the second paragraph has been extended; c)
7、 in Subclause 4.3 “Convexity-Concavity”, the text has been modified; d) in Table 10 “Convexity-concavity tolerances”, a note has been added; e) in Subclause 4.4 “Contour”, the text has been modified; f) in Table 11 “Contour tolerances for alloys in Alloy Group 1”, the title has been updated; g) in S
8、ubclause 4.5 “Twist”, the first paragraph has been revised and new text has been added after Figure 9. Previous editions DIN 1748-4: 1962-05, 1968-12, 1981-11 DIN 9711: 1941-11, 1955-09 DIN EN 755-9: 2001-07, 2008-06 DIN EN 755-9 Corrigendum 1: 2009-02 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NO
9、RM EN 755-9 June 2016 ICS 77.150.10 Supersedes EN 755-9:2008English Version Aluminium and aluminium alloys - Extruded rod/bar, tube and profiles - Part 9: Profiles, tolerances on dimensions and form Aluminium et alliages daluminium - Barres, tubes et profils fils - Partie 9 : Profils, tolrances sur
10、dimensions et forme Aluminium und Aluminiumlegierungen - Stranggepresste Stangen, Rohre und Profile - Teil 9: Profile, Grenzabmae und Formtoleranzen This European Standard was approved by CEN on 11 April 2016. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate
11、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 CEN-CENELEC Management Centre or to any CEN member. This European Standa
12、rd 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 CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the natio
13、nal standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slov
14、akia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2016 CEN All rights of exploitation in any form and by any mean
15、s reserved worldwide for CEN national Members. Ref. No. EN 755-9:2016 EEN 755-9:2016 (E) 2 Contents Page European foreword . 3 1 Scope 5 2 Alloy groups 5 3 Tolerances on dimensions . 6 3.1 Cross-sectional dimensions . 6 3.1.1 General 6 3.1.2 Tolerances on dimensions other than wall thickness . 6 3.1
16、.3 Tolerances on wall thickness of solid and hollow profiles 9 3.2 Length . 11 3.3 Squareness of cut ends . 12 4 Tolerances on form . 12 4.1 General . 12 4.2 Straightness 12 4.3 Convexity-Concavity 12 4.4 Contour 14 4.5 Twist . 15 4.6 Angularity . 17 4.7 Corner and fillet radii . 18 Bibliography . 2
17、0 DIN EN 755-9:2016-10EN 755-9:2016 (E) 3 European foreword This document (EN 755-9:2016) has been prepared by Technical Committee CEN/TC 132 “Aluminium and aluminium alloys”, the secretariat of which is held by AFNOR. This European Standard shall be given the status of a national standard, either b
18、y publication of an identical text or by endorsement, at the latest by December 2016, and conflicting national standards shall be withdrawn at the latest by December 2016. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or
19、 CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 755-9:2008. The following technical modifications have been introduced during the revision: Subclause 4.2, Straightness; Subclause 4.3, Convexity-Concavity; Table 10; Subclause 4.4 Conto
20、ur; Table 11; Subclause 4.5, Twist. EN 755 comprises the following parts under the general title Aluminium and aluminium alloys Extruded rod/bar, tube and profiles: Part 1: Technical conditions for inspection and delivery; Part 2: Mechanical properties; Part 3: Round bars, tolerances on dimensions a
21、nd form; Part 4: Square bars, tolerances on dimensions and form; Part 5: Rectangular bars, tolerances on dimensions and form; Part 6: Hexagonal bars, tolerances on dimensions and form; Part 7: Seamless tubes, tolerances on dimensions and form; Part 8: Porthole tubes, tolerances on dimensions and for
22、m; Part 9: Profiles, tolerances on dimensions and form. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Fin
23、land, Former Yugoslav Republic of Macedonia, DIN EN 755-9:2016-10EN 755-9:2016 (E) 4 France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United
24、Kingdom. DIN EN 755-9:2016-10EN 755-9:2016 (E) 5 1 Scope This European Standard specifies the tolerances on dimensions and form for aluminium and aluminium alloy extruded profile with a cross section contained within a circumscribing circle not greater than 800 mm (see Figure 1). The temper designat
25、ions used in this part are according to EN 515. This European Standard applies to extruded profiles for general engineering applications only. Key 1 circumscribing circle CD 800 mm Figure 1 Circumscribing circle 2 Alloy groups For the purpose of this document, the alloys are distributed into two gro
26、ups which correspond to varying degrees of difficulty when manufacturing the products. The division into group I and group II of the most commonly used general engineering alloys is specified in Table 1. Grouping of other alloys is subject to agreement between supplier and purchaser. Table 1 Alloy g
27、roups Group I EN AW-1050A, EN AW-1070A, EN AW-1200, EN AW-1350 EN AW-3102, EN AW-3003, EN AW-3103 EN AW-5005, EN AW-5005A EN AW-6101A, EN AW-6101B, EN AW-6005, EN AW-6005A, EN AW-6106, EN AW-6008, EN AW-6010A, EN AW-6023, EN AW-6060, EN AW-6360, EN AW-6063, EN AW-6063A, EN AW-6463 Group II EN AW-200
28、7, EN AW-2011, EN AW-2011A, EN AW-2014, EN AW-2014A, EN AW-2017A, EN AW-2024, EN AW-2030 EN AW-5019, EN AW-5049, EN AW-5051A, EN AW-5251, EN AW-5052, EN AW-5154A, EN AW-5454, EN AW-5754, EN AW-5083, EN AW-5086 EN AW-6012, EN AW-6014, EN AW-6018, EN AW-6351, EN AW-6061, EN AW-6261, EN AW-6262, EN AW-
29、6262A, EN AW-6065, EN AW-6081, EN AW-6082, EN AW-6182 EN AW-7003, EN AW-7005, EN AW-7108, EN AW-7108A, EN AW-7020, EN AW-7021, EN AW-7022, EN AW-7049A, EN AW-7075 DIN EN 755-9:2016-10EN 755-9:2016 (E) 6 3 Tolerances on dimensions 3.1 Cross-sectional dimensions 3.1.1 General The tolerances on the dim
30、ensions listed below (see Figures 2, 3 and 4) are specified in the relevant Tables 2 to 9. A: wall thicknesses except those enclosing the hollow spaces in hollow profiles; B: wall thicknesses enclosing the hollow spaces in hollow profiles except those between two hollow spaces; C: wall thicknesses b
31、etween two hollow spaces in hollow profiles; E: the length of the shorter leg of profiles with open ends; H: all dimensions (except wall thickness) between points on the cross section of the profile or the centres of open screw holes. Between points on the outer contour to points inside a hollow cha
32、mber so long as they are not identical to wall thickness B. Alternatively from the inside of a hollow chamber to the inside of another hollow chamber so long as they are not identical to wall thickness C and are not within the definition of dimension H. Such dimensions shall be replaced by dimension
33、 H plus wall thickness B or C or shall be subject to agreement between supplier and purchaser. Figure 2 Definition of dimensions A, B, C, E, H 3.1.2 Tolerances on dimensions other than wall thickness The tolerances on dimensions shall be as specified in Tables 2 and 3. For profiles with open ends (s
34、ee Figures 3, 4 and the relevant examples) the tolerances specified in Table 4 shall be added to those of Tables 2 and 3 for dimension H across open ended legs in order to obtain the tolerances on the gap between any opposite points on these ends. DIN EN 755-9:2016-10EN 755-9:2016 (E) 7 Table 2 Tole
35、rances on cross-sectional dimensions of solid and hollow profiles - Alloy group I Dimensions in millimetres Dimension H Tolerances on H for circumscribing circle CD a, bOver Up to and including CD 100 100 5 - 30 0,30 0,20 0,20 30 60 0,40 0,30 0,30 60 100 0,60 0,40 0,40 100 150 0,90 0,60 0,60 150 200
36、 1,2 0,80 0,80 200 300 1,8 1,2 1,2 300 400 2,4 1,6 1,6 400 500 3,0 2,0 2,0 500 600 3,6 2,4 2,4 600 800 4,0 3,0 3,0 For alloys in Group II, the specified tolerances shall be multiplied by a factor of 1,4. aIf the profile has varying wall thicknesses in the measurement range, the thinnest wall thickne
37、ss shall be used. In the case of solid and hollow profiles with a width W of at least 150 mm, the local deviation f1, shall not exceed 0,7 mm for any 100 mm of width W1. 4.4 Contour For profiles in Alloy Group I with curved cross sections, the deviation at any point of the curve from the theoretical
38、ly exact line as defined by the drawing shall not be greater than the appropriate tolerance C specified in Table 11. Considering all points on the curve, a tolerance zone shall be defined as the zone between two envelopes running tangentially to all circles of diameter C which can be drawn with thei
39、r centres lying along the theoretically exact line; this is shown in Figure 8. DIN EN 755-9:2016-10EN 755-9:2016 (E) 15 For alloys in Alloy Group II the specified tolerances shall be multiplied by a factor of 1,4. Figure 8 Definition of contour tolerances Table 11 Contour tolerances for alloys in Al
40、loy Group I Dimensions in millimetres Width W of the contour Contour tolerance = diameter C of the tolerance circle Over Up to and including - 30 0,30 30 60 0,50 60 90 0,70 90 120 1,0 120 150 1,2 150 200 1,5 200 250 2,0 250 300 2,5 300 400 3,0 400 500 3,5 500 800 4,0 NOTE Contour tolerances can be c
41、hecked by the use of suitable gauges (min./max.). 4.5 Twist Twist T shall be measured as shown in Figure 9 by placing the profile on a flat baseplate, the profile resting under its own mass. As shown in Figure 9, twist is determined by measuring the maximum distance between the bottom surface of the
42、 profile and the surface of the base plate. Twist tolerances are specified in Table 12 as a function of the width W and the length L of the profile. DIN EN 755-9:2016-10EN 755-9:2016 (E) 16 Key 1 base plate Figure 9 Measurement of twist Figure 9 shows an example of a simple case of twist. There are
43、other possibilities where the twist shall be identified differently. Some examples are given below: Differing positioning of the profile on the baseplate such that the maximum twist shall be calculated as the sum of two separate measurements on the diagonal end positions. Discontinuous twist over th
44、e profile length such that the maximum twist is the difference between specific points along the length. The maximum twist in this case is not necessarily equal to the maximum distance to the base plate and should not be confused with planarity of the surfaces (combination of twist and straightness)
45、. In the case of such difficult interpretation of twist, the specific requirements and methods of measurement shall be subject to agreement between supplier and purchaser. DIN EN 755-9:2016-10EN 755-9:2016 (E) 17 Table 12 Twist tolerances Dimensions in millimetres Width W Twist tolerance T for lengt
46、h L Over Up to and including Per 1 000 of length aOn total profile length L Over 1 000 and including 6 000 Over 6 000 - 30 1,2 2,5 3,0 30 50 1,5 3,0 4,0 50 100 2,0 3,5 5,0 100 200 2,5 5,0 7,0 200 300 2,5 6,0 8,0 300 450 3,0 8,0 1,5 x L (L in metres) 450 600 3,5 9,5 600 800 4,5 10,0 aTwist tolerances
47、 for lengths less than 1 000 mm shall be subject to agreement between supplier and purchaser. 4.6 Angularity The deviation from a specified angle shall be measured as shown in Figures 10 and 11. The angularity tolerances for right angles shall be as specified in Table 13 as a function of profile wid
48、th W. The maximum allowable deviation in an angle other than a right angle shall be 1. In the case of unequal side lengths the tolerance on angularity shall apply to the shorter side of the angle, i.e. it is measured starting from the longer side. Table 13 Angularity tolerances for right angles Dime
49、nsions in millimetres Width W Maximum allowable deviation, Z from a right angle Over Up to and including - 30 0,4 30 50 0,7 50 80 1,0 80 120 1,4 120 180 2,0 180 240 2,6 240 300 3,1 300 400 3,5 For profiles with W which exceeds 400 mm, the tolerances shall be subject to agreement between the supplier and purchaser. DIN EN 755-9:2016-10EN 755-9:2016 (E) 18 Figure 10 Measurement of angularity in a right
