BS EN 755-9-2001 Aluminium and aluminium alloys — Extruded rodbar, tube and profiles — Part 9 Profiles, tolerances on dimensions and form.pdf

BRITISH STANDARD BS EN 755-9:2001 Incorporating Corrigendum No. 1 Aluminium and aluminium alloys Extruded rod/bar, tube and profiles Part 9: Profiles, tolerances on dimensions and form The European Standard EN 755-9:2001 has the status of a British Standard ICS 77.150.10 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BS EN 755-9:2001 This British Standard, having been prepared under the direction of the Engineering Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 June 2001 © BSI 07-2001 ISBN 0 580 37046 1 National foreword This British Standard is the official English language version of EN 755-9:2001. Together with the standards listed in the following table, it supersedes BS 1474:1987, BS 4300-4:1973, BS 4300-12:1969 and BS 4300-15:1973 which are withdrawn This part of BS EN 755 is published together with: BS EN 12020-1, Aluminium and aluminium alloys Extruded precision profiles in alloys EN AW-6060 and EN AW-6063 Part 1: Technical conditions for inspection and delivery; BS EN 12020-2, Aluminium and aluminium alloys Extruded precision profiles in alloys EN AW-6060 and EN AW-6063 Part 2: Tolerances on dimensions and form. The following table gives the full list of implemented European Standards which supersede the British Standards Superseded British Standards Superseding European Standards BS 1474:1987:BS EN 515:1993, BS EN 573-3:1995, BS EN 573-4:1995, BS EN 755-1:1997, BS EN 755-2:1997, BS EN 755-3:1996, BS EN 755-4:1996, BS EN 755-5:1996, BS EN 755-6:1996, BS EN 755-7:1998, BS EN 755-8:1998, BS EN 755-9:2001, BS EN 12020-1:2001, BS EN 12020-2:2001 BS 4300-4:1973:BS EN 515:1993, BS EN 573-3:1995, BS EN 573-4:1995, BS EN 755-1:1997, BS EN 755-2:1997, BS EN 755-3:1996, BS EN 755-4:1996, BS EN 755-5:1996, BS EN 755-6:1996, BS EN 755-9:2001 BS 4300-12:1969:BS EN 515:1993, BS EN 573-3:1995, BS EN 573-4:1995, BS EN 755-1:1997, BS EN 755-2:1997, BS EN 755-3:1996, BS EN 755-4:1996, BS EN 755-5:1996, BS EN 755-6:1996, BS EN 755-7:1998, BS EN 755-8:1998, BS EN 755-9:2001 BS 4300-15:1973:BS EN 515:1993, BS EN 573-3:1995, BS EN 573-4:1995, BS EN 755-1:1997, BS EN 755-2:1997, BS EN 755-3:1996, BS EN 755-4:1996, BS EN 755-5:1996, BS EN 755-6:1996, BS EN 755-7:1998, BS EN 755-8:1998, BS EN 755-9:2001 Amendments issued since publication Amd. No. DateComments 13301 Corrigendum No. 1 July 2001Correction of supersession details in national foreword BS EN 755-9:2001 © BSI 06-2001 i The UK participation in its preparation was entrusted by Technical Committee NFE/35, Light metals and their alloys, to Subcommittee NFE/35/5, Wrought aluminium and aluminium alloys, which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “ International Standards Correspondence Index” , or by using the “ Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the EN title page, pages 2 to 18, an inside back cover and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. aid enquirers to understand the text; present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. iiblank ? EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM EN 755-9 April 2001 ICS 77.150.10 English version Aluminium and aluminium alloys - Extruded rod/bar, tube and profiles - Part 9: Profiles, tolerances on dimensions and form Aluminium et alliages d'aluminium - Barres, tubes et profilés filés - Partie 9: Profilés, tolérances sur dimension et forme Aluminium und Aluminiumlegierungen - Stranggepresste Stangen, Rohre und Profile - Teil 9: Profile, Grenzabmaße und Formtoleranzen This European Standard was approved by CEN on 18 February 2001. CEN members are bound to comply with the CEN/CENELEC Internal Regulations 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 Management Centre or to any CEN member. 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 Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels © 2001 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 755-9:2001 E ? Page 2 EN 755-9:2001 Contents Foreword3 1Scope 4 2Alloy groups.4 3Tolerances on dimensions5 3.1Cross-sectional dimensions.5 3.2Length.12 3.3Squareness of cut ends 12 4Tolerances on form12 4.1General12 4.2Straightness .12 4.3Convexity - Concavity .13 4.4Contour.14 4.5Twist15 4.6Angularity .17 4.7Corner and fillet radii.18 ? Page 3 EN 755-9:2001 Foreword This European Standard 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 by publication of an identical text or by endorsement, at the latest by October 2001, and conflicting national standards shall be withdrawn at the latest by October 2001. Within its programme of work, Technical Committee CEN/TC 132 entrusted CEN/TC 132/WG 5 “Extruded and drawn products“ to prepare the following standard : EN 755-9, Aluminium and aluminium alloys- Extruded rod/bar, tube and profiles - Part 9 : Profiles, tolerances on dimensions and form. This standard is part of a set of nine standards. The other standards deal with : EN 755-1, Aluminium and aluminium alloys - Extruded rod/bar, tube and profiles - Part 1 : Technical conditions for inspection and delivery. EN 755-2, Aluminium and aluminium alloys - Extruded rod/bar, tube and profiles - Part 2 : Mechanical properties. EN 755-3, Aluminium and aluminium alloys - Extruded rod/bar, tube and profiles - Part 3 : Round bars, tolerances on dimensions and form. EN 755-4, Aluminium and aluminium alloys - Extruded rod/bar, tube and profiles - Part 4 : Square bars, tolerances on dimensions and form. EN 755-5, Aluminium and aluminium alloys - Extruded rod/bar, tube and profiles - Part 5 : Rectangular bars, tolerances on dimensions and form. EN 755-6, Aluminium and aluminium alloys - Extruded rod/bar, tube and profiles - Part 6 : Hexagonal bars, tolerances on dimensions and form. EN 755-7, Aluminium and aluminium alloys - Extruded rod/bar, tube and profiles - Part 7 : Seamless tubes, tolerances on dimensions and form. EN 755-8, Aluminium and aluminium alloys - Extruded rod/bar, tube and profiles - Part 8 : Porthole tubes, 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, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. ? Page 4 EN 755-9:2001 1 Scope This part of EN 755 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). This standard applies to extruded profiles for general engineering applications only. The tolerances in this standard only apply to those dimensions that can be physically measured. NOTESome of the products listed in the present standard can be subject to patent or patent applications, and their listing herein does not in any way imply the granting of a licence under such patent right. CEN/TC 132 affirms it is its policy that in the case when a patentee refuses to grant licences on standardised standard products under reasonable and not discriminatory conditions, then this product shall be removed from the corresponding standard. Dimensions in millimetres Figure 1 Circumscribing circle 2 Alloy groups For the purpose of this European Standard, the alloys are distributed into two groups 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 purchaser and supplier. ? Page 5 EN 755-9:2001 Table 1 Alloy groups Group IEN AW-1050A, EN AW-1070A, EN AW-1200, EN AW-1350 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-6060, EN AW-6063, EN AW-6063A, EN AW-6463 Group IIEN AW-2007, EN AW-2011, EN AW-2011A, EN AW-2014, EN AW-2014A, EN AW-2017A, EN AW-2024, EN AW-2030 EN AW-5019a, 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-6018, EN AW-6351, EN AW-6061, EN AW-6261, EN AW-6262, EN AW-6081, EN AW-6082 EN AW-7003, EN AW-7005, EN AW-7020, EN AW-7022, EN AW-7049A, EN AW-7075 a EN AW-5019 is the new designation for EN AW-5056A. 3 Tolerances on dimensions 3.1 Cross-sectional dimensions 3.1.1 General The tolerances on the dimensions listed below (see Figure 2) are specified in the relevant Tables 2 to 8. 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 between two hollow spaces in hollow profiles ; E: the length of the shorter leg of profiles with open ends ; H: all dimensions except wall thickness. ? Page 6 EN 755-9:2001 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 (see 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. Page 7 EN 755-9:2001 Table 2 Tolerances 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 b OverUp to and including CD ? ? 100100 5 Solid profiles -300,300,200,20 30600,400,300,30 601000,600,400,40 1001500,900,600,60 1502001,20,800,80 2003001,81,21,2 3004002,41,61,6 4005003,02,02,0 5006003,62,42,4 6008004,03,03,0 a If the profile has varying wall thicknesses in the measurement range, the thinnest wall thickness shall be used. In the case of solid and hollow profiles with a width W of 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 with curved cross sections, the deviation at any point of the curve from the theoretically 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 their centres lying along the theoretically exact line ; this is shown in Figure 7 (a and b). a)b) Figure 7 Definition of contour tolerances Page 15 EN 755-9:2001 Table 11 Contour tolerances Dimensions in millimetres Width W of the contour OverUp to and including Contour tolerance = diameter C of the tolerance circle -300,30 30600,50 60900,70 901201,0 1201501,2 1502001,5 2002502,0 2503002,5 3004003,0 4005003,5 5008004,0 NOTEContour tolerances can be checked by placing a section of the profile on a 1:1 scale projection of the drawing with the contour tolerance indicated on the drawing. Another recommended method is the use of suitable gauges (min./max.). 4.5 Twist Twist T shall be measured as shown in Figure 8 by placing the profile on a flat baseplate the profile resting under own mass, and measuring the maximum distance at any point along the length between the bottom surface of the profile and the baseplate surface. Tolerances shall be as specified in Table 12 as a function of the width W and the length L of the profile. Page 16 EN 755-9:2001 Key 1Baseplate Figure 8 Measurement of twist Table 12 Twist tolerances Dimensions in millimetres Width WTwist tolerance T for length L On total profile length L OverUp to and including Per 1 000 of lengtha Over 1 000 and including 6 000 Over 6 000 -301,22,53,0 30501,53,04,0 501002,03,55,0 1002002,55,07,0 2003002,56,08,0 3004503,08,0 4506003,59,51,5 x L (L in metres) 6008004,010,0 a Twist tolerances for lengths less than 1 000 mm shall be subject to agreement between purchaser and supplier. Page 17 EN 755-9:2001 4.6 Angularity The deviation from a specified angle shall be measured as shown in Figures 9 and 10. The angularity tolerances for right angles shall be as specified in Table 13 as a function of profile width 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 Dimensions in millimetres Width WMaximum allowable deviation, Z from a right angle OverUp to and including -300,4 30500,7 50801,0 801201,4 1201802,0 1802402,6 2403003,1 3004003,5 Figure 9 Measurement of angularity in a right angle Page 18 EN 755-9:2001 Figure 10 Measurement of angularity in an angle other than a right angle 4.7 Corner and fillet radii Sharp corners and fillets may be slightly rounded unless otherwise ind