BS-EN-755-4-2008.pdf
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1、BRITISH STANDARD BS EN 755-4:2008 Aluminium and aluminium alloys Extruded rod/bar, tube and profiles Part 4: Square bars, tolerances on dimensions and form ICS 77.150.10 ? Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Licensee=Boeing Co/5910770001
2、 Not for Resale, 08/14/2008 20:17:04 MDTNo reproduction or networking permitted without license from IHS -,-,- BS EN 755-4:2008 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 April 2008 BSI 2008 ISBN 978 0 580 55558 9 National foreword Th
3、is British Standard is the UK implementation of EN 755-4:2008. It supersedes BS EN 755-4:1996 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee NFE/35, Light metals and their alloys. A list of organizations represented on this committee can be obtained
4、on request to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard cannot confer immunity from legal obligations. Amendments/corrigenda issued since publication Da
5、teComments Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Licensee=Boeing Co/5910770001 Not for Resale, 08/14/2008 20:17:04 MDTNo reproduction or networking permitted without license from IHS -,-,- EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM
6、EN 755-4 March 2008 ICS 77.150.10Supersedes EN 755-4:1995 English Version Aluminium and aluminium alloys - Extruded rod/bar, tube and profiles - Part 4: Square bars, tolerances on dimensions and form Aluminium et alliages daluminium - Barres, tubes et profils fils - Partie 4: Barres carres, tolrance
7、s sur dimensions et forme Aluminium und Aluminiumlegierungen - Stranggepresste Stangen, Rohre und Profile - Teil 4: Vierkantstangen, Grenzabmae und Formtoleranzen This European Standard was approved by CEN on 10 February 2008. CEN members are bound to comply with the CEN/CENELEC Internal Regulations
8、 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 Management Centre or to any CEN member. This Europe
9、an 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 Management Centre has the same status as the official versions. CEN members are the nati
10、onal standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and
11、United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2008 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 755-4:2
12、008: E Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Licensee=Boeing Co/5910770001 Not for Resale, 08/14/2008 20:17:04 MDTNo reproduction or networking permitted without license from IHS -,-,- EN 755-4:2008 (E) 2 Contents Page Foreword3 1 Scope 5
13、2 Alloy groups.5 3 Tolerances on dimensions .5 3.1 Width across flats 5 3.2 Corner radii.6 3.3 Length.6 3.4 Squareness of cut ends 7 4 Tolerances on forms .7 4.1 Straightness.7 4.2 Convexity - Concavity .8 4.3 Twist8 4.4 Squareness.9 Bibliography11 BS EN 755-4:2008 Copyright British Standards Instit
14、ution Provided by IHS under license with BSI - Uncontrolled Copy Licensee=Boeing Co/5910770001 Not for Resale, 08/14/2008 20:17:04 MDTNo reproduction or networking permitted without license from IHS -,-,- EN 755-4:2008 (E) 3 Foreword This document (EN 755-4:2008) has been prepared by Technical Commi
15、ttee 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 by publication of an identical text or by endorsement, at the latest by September 2008, and conflicting national standards shal
16、l be withdrawn at the latest by September 2008. This document supersedes EN 755-4:1995. Within its programme of work, Technical committee CEN/TC 132 entrusted CEN/TC 132/WG 5 “Extruded and drawn products“ to revise EN 755-4:1995. The following technical modifications have been introduced during the
17、revision: Clause 2: Alloys EN AW-3102, EN AW-6008, EN AW-6010A, EN AW-6014, EN AW-6023, EN AW-6360, EN AW-6262A, EN AW-6065 and EN AW-6182 are added in Group I Clause 2: Alloys EN AW-5049, EN AW-7108, EN AW-7108A and EN AW-7021 are added in Group II EN 755 comprises the following parts under the gen
18、eral 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 dimensions and form Part 5: Rectangular bar
19、s, 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 form Attention is drawn to the possibility
20、 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. CEN/TC 132 affirms it is its policy that in the case when a patentee refuses to grant licenses on standardized standards pr
21、oducts under reasonable and not discriminatory conditions then this product shall be removed from the corresponding standard. BS EN 755-4:2008 Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Licensee=Boeing Co/5910770001 Not for Resale, 08/14/2008 2
22、0:17:04 MDTNo reproduction or networking permitted without license from IHS -,-,- EN 755-4:2008 (E) 4 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, Cyprus,
23、Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 755-4:2008 Copyright British Standa
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