DIN EN 755-8-2016 Aluminium and aluminium alloys - Extruded rod bar tube and profiles - Part 8 Porthole tubes tolerances on dimensions and form German version EN 755-8 2016《铝和铝合金 挤.pdf
《DIN EN 755-8-2016 Aluminium and aluminium alloys - Extruded rod bar tube and profiles - Part 8 Porthole tubes tolerances on dimensions and form German version EN 755-8 2016《铝和铝合金 挤.pdf》由会员分享,可在线阅读,更多相关《DIN EN 755-8-2016 Aluminium and aluminium alloys - Extruded rod bar tube and profiles - Part 8 Porthole tubes tolerances on dimensions and form German version EN 755-8 2016《铝和铝合金 挤.pdf(19页珍藏版)》请在麦多课文档分享上搜索。
1、October 2016 English price group 11No 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!%nO“2577544www.din.deD
2、IN EN 755-8Aluminium and aluminium alloys Extruded rod/bar, tube and profiles Part 8: Porthole tubes, tolerances on dimensions and form;English version EN 7558:2016,English translation of DIN EN 755-8:2016-10Aluminium und Aluminiumlegierungen Stranggepresste Stangen, Rohre und Profile Teil 8: Mit Ka
3、mmerwerkzeug stranggepresste Rohre, Grenzabmae und Formtoleranzen;Englische Fassung EN 7558:2016,Englische bersetzung von DIN EN 755-8:2016-10Aluminium et alliages daluminium Barres, tubes et profils fils Partie 8: Tubes fils pont, tolrances sur dimensions et forme;Version anglaise EN 7558:2016,Trad
4、uction anglaise de DIN EN 755-8:2016-10SupersedesDIN EN 7558:200806 andDIN EN 7558 Corrigendum 1:200902www.beuth.deDocument comprises 19 pagesDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.09.16 DIN EN 755-8:2016-10 2 A comma is us
5、ed as the decimal marker. National foreword This document (EN 755-8:2016) 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 Standard
6、s Committee Nonferrous Metals), Working Committee NA 066-01-04 AA Strangpresserzeugnisse. Amendments This standard differs from DIN EN 755-8:2008-06 and DIN EN 755-8 Corrigendum 1:2009-02 as follows: a) a new Clause 2 “Normative references” has been included and the numbering of the paragraphs follo
7、wing has been updated accordingly; b) in Subclause 3.2 “Diameter Round tube”, a correction has been made and paragraphs 2 and 4 have been added. Previous editions DIN EN 755-8: 1998-10, 2008-06 DIN EN 755-8 Corrigendum 1: 2009-02 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 755-8 June 2016 I
8、CS 77.150.10 Supersedes EN 755-8:2008English Version Aluminium and aluminium alloys - Extruded rod/bar, tube and profiles - Part 8: Porthole tubes, tolerances on dimensions and form Aluminium et alliages daluminium - Barres, tubes et profils fils - Partie 8 : Tubes fils pont, tolrances sur dimension
9、s et forme Aluminium und Aluminiumlegierungen - Stranggepresste Stangen, Rohre und Profile - Teil 8: Mit Kammerwerkzeug stranggepresste Rohre, 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 Regu
10、lations 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 CEN-CENELEC Management Centre or to any CEN memb
11、er. 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 CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. C
12、EN members are the national 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,
13、 Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey andUnited 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 a
14、ny form and by any means reserved worldwide for CEN national Members. Ref. No. EN 755-8:2016 EEN 755-8:2016 (E) 2 Contents Page European foreword . 3 1 Scope 4 2 Normative references 5 3 Tolerances on dimensions . 5 3.1 General 5 3.2 Diameter - Round tube 5 3.3 Width, depth or width across flats - s
15、quares, rectangles, hexagons, octagons . 6 3.4 Wall thickness variation (eccentricity) . 7 3.5 Length 8 3.6 Squareness of cut ends 9 4 Tolerances on form 9 4.1 General 9 4.2 Straightness . 9 4.3 Convexity-Concavity 10 4.4 Twist . 11 4.5 Angularity . 12 4.6 Corner and fillet radii . 13 4.7 Depth of d
16、ents for round tube . 14 Annex A (informative) Wall thickness variation (eccentricity) . 15 A.1 General . 15 A.2 Specifying round tube sizes and tolerances . 15 A.2.1 General . 15 A.2.2 Wall thickness variation for tubes specified as OD t or ID t . 15 A.2.3 Wall thickness variation for tubes specifi
17、ed as OD ID . 16 Bibliography . 17 DIN EN 755-8:2016-10EN 755-8:2016 (E) 3 European foreword This document (EN 755-8:2016) 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
18、 of a national standard, either by 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 sub
19、ject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 755-8:2008. The following technical modifications have been introduced during the revision: Figure 1; Subclause 3.2 Diameter - Round tube. EN 755 compris
20、es 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 and form; Part 4: Square bars, tolerances on dimens
21、ions 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 form; Part 9: Profiles, tolerances on dimensions and
22、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, Finland, Former Yugoslav Republic of Macedonia, Franc
23、e, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. DIN EN 755-8:2016-10EN 755-8:2016 (E) 4 1 Scope This European Standard specifies
24、the tolerances on dimensions and form for aluminium and aluminium alloy extruded porthole tubes with an outside diameter (OD) from 8 mm to 450 mm (round tube, see Figure 1) or with a cross section contained within a circumscribing circle (CD) from 10 mm to 350 mm (other than round tube, see Figure 2
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