SVENSK STANDARD SS-EN 122-2:28 Fastställd/Approved: 28-3-31 Publicerad/Published: 28-4-17 Utgåva/Edition: 2 Språk/Language: engelska/english ICS: 77.15.1 Aluminium och aluminiumlegeringar Strängpressade precisionsprofiler i legering EN AW-66 och EN AW-663 Del 2: Toleranser för dimension och form Aluminium and aluminium alloys Extruded precision profiles in alloys EN AW-66 and EN AW-663 Part 2: Tolerances on dimensions and form SWEDISH STANDARDS INSTITUTE
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Europastandarden EN 122-2:28 gäller som svensk standard. Detta dokument innehåller den officiella engelska versionen av EN 122-2:28. Denna standard ersätter SS-EN 122-2, utgåva 1. The European Standard EN 122-2:28 has the status of a Swedish Standard. This document contains the official English version of EN 122-2:28. This standard supersedes the Swedish Standard SS-EN 122-2, edition 1. Copyright/Upphovsrätten till denna produkt tillhör SIS, Swedish Standards Institute, Stockholm, Sverige. Användningen av denna produkt regleras av slutanvändarlicensen som återfinns i denna produkt, se standardens sista sidor. Copyright SIS, Swedish Standards Institute, Stockholm, Sweden. All rights reserved. The use of this product is governed by!the end-user licence for this product. You will find the licence in the end of this document. Upplysningar om sakinnehållet i standarden lämnas av SIS, Swedish Standards Institute, telefon 8-555 52. Standarder kan beställas hos SIS Förlag AB som även lämnar allmänna upplysningar om svensk och utländsk standard. Information about the content of the standard is available from the Swedish Standards Institute (SIS), tel +46 8 555 52. Standards may be ordered from SIS Förlag AB, who can also provide general information about Swedish and foreign standards. SIS Förlag AB, SE 118 8 Stockholm, Sweden. Tel: +46 8 555 523 1. Fax: +46 8 555 523 11. E-mail: sis.sales@sis.se Internet: www.sis.se
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM EN 122-2 March 28 ICS 77.15.1 Supersedes EN 122-2:21 English Version Aluminium and aluminium alloys - Extruded precision profiles in alloys EN AW-66 and EN AW-663 - Part 2: Tolerances on dimensions and form Aluminium et alliages d'aluminium - Profilés de précision filés en alliages EN AW-66 et EN AW-663 - Partie 2: Tolérances sur dimensions et forme Aluminium und Aluminiumlegierungen - Stranggepresste Präzisionsprofile aus Legierungen EN AW-66 und EN AW-663 - Teil 2: Grenzabmaße und Formtoleranzen This European Standard was approved by CEN on 1 February 28. 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 CEN 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 CEN Management Centre has the same status as the official versions. CEN members are the national 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 United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG Management Centre: rue de Stassart, 36 B-15 Brussels 28 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 122-2:28: E
SS-EN 122-2:28 122-2:28 (E) (E) Contents Page Foreword... 3 1 Scope... 4 2 Normative references... 4 3 Tolerances on dimensions... 5 3.1 General... 5 3.2 Cross-sectional dimensions... 5 3.2.1 General... 5 3.2.2 Tolerances on dimensions other than wall thickness... 6 3.2.3 Tolerances on wall thickness of solid and hollow profiles... 6 3.3 Length... 7 3.4 Squareness of cut ends... 8 3.5 Length offset for profiles with a thermal barrier... 8 4 Tolerances on form... 8 4.1 Plane parallelism... 8 4.2 Straightness... 9 4.3 Convexity-Concavity... 1 4.4 Contour... 11 4.5 Twist... 12 4.6 Angularity... 13 4.7 Corner and fillet radii... 15 Bibliography... 16 2
SS-EN 122-2:28 (E) Foreword This document (EN 122-2:28) 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 September 28, and conflicting national standards shall be withdrawn at the latest by September 28. This document supersedes EN 122-2:21. Within its programme of work, Technical committee CEN/TC 132 entrusted CEN/TC 132/WG 5 "Extruded and drawn products" to revise EN 122-2:21 The following technical modifications have been introduced during the revision: Clause 1: The maximum diameter of the circumscribing circle CD is increased to 35 mm Subclause 3.2.3, Table 2: The tolerances on wall thickness of solid and hollow profiles have been modified Subclause 4.1: Requirements to plane parallelism is included Subclause 4.4, Table 6: Requirements to contour tolerances have been modified Subclause 4.5, Table 7: Requirements to twist tolerances have been modified EN 122 comprises the following parts under the general title "Aluminium and aluminium alloys Extruded precision profiles in alloys EN AW-66 and EN AW-663": Part 1: Technical conditions for inspection and delivery Part 2: Tolerances on dimensions and form Attention is drawn to the possibility 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 products under reasonable and not discriminatory conditions then this product shall be removed from the corresponding standard. 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, 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. 3
SS-EN 122-2:28 122-2:28 (E) (E) 1 Scope This document specifies tolerances on dimensions and form of extruded precision profiles, in alloys EN AW- 66 and EN AW-663 manufactured with and without a thermal barrier (see Figures 1 and 2). It applies to extruded products supplied without further surface treatment. Precision profiles covered in this standard are distinguished from extruded profiles for general applications covered in EN 755-9 by the following characteristics: they are mainly for architectural applications; they meet more stringent requirements regarding the surface condition of visible surfaces; the maximum diameter of the circumscribing circle CD is 35 mm; they are made to closer tolerances on dimensions and form. In the case of profiles which, due to the complexity of their design, are difficult to manufacture and specify, then special agreements between supplier and purchaser may need to be reached. NOTE The effect of the thermal barrier material on the dimensional tolerances is covered by this document although the actual thermal barrier material itself is not (see EN 1424). Key 1 CD maximum 35 mm Key 1 CD maximum 35 mm 2 thermal barriers Figure 1 Profile without thermal barrier Figure 2 Profile containing thermal barrier 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references only the edition cited applies. For undated references the latest edition of the referenced document (including any amendments) applies. 4
SS-EN 122-2:28 (E) EN ISO 111, Geometrical Product Specifications (GPS) Geometrical tolerancing Tolerances of form, orientation, location and run-out (ISO 111:24) 3 Tolerances on dimensions 3.1 General If, for compelling reasons, tolerances closer than those specified in 3.2.1 and 3.2.2 are required, these shall only be specified for dimensions that are critical to the function, subject to specific agreement between supplier and purchaser. Any such reduction shall not exceed two-thirds of the values specified in this standard and is subject to a minimum tolerance band of,3 mm. 3.2 Cross-sectional dimensions 3.2.1 General The tolerances of the following dimensions (see Figure 3) are specified in Tables 1 and 2. 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) between points on the cross section of the profile or the centres of open screw holes, including open ends. Figure 3 Definition of dimensions A, B, C, E, H 5
SS-EN 122-2:28 122-2:28 (E) (E) 3.2.2 Tolerances on dimensions other than wall thickness The tolerances for dimension H shall be as specified in Table 1. Over Dimension H Table 1 Tolerances on cross-sectional dimensions Dimensions in millimetres Up to and including Tolerances on H (except open ends) Tolerances on H (open ends) E 6 6 < E 12 a - 1 ±,15 ±,15 b 1 15 ±,2 ±,2 b 15 3 ±,25 ±,25 b 3 45 ±,3 ±,3 ±,45 45 6 ±,4 ±,4 ±,55 6 9 ±,45 ±,45 ±,65 9 12 ±,6 ±,6 ±,8 12 15 ±,8 ±,8 ± 1, 15 18 ± 1, ± 1, ± 1,3 18 24 ± 1,2 ± 1,2 ± 1,5 24 3 ± 1,5 ± 1,5 ± 1,8 3 35 ± 1,8 ± 1,8 ± 2,1 NOTE Tolerances given in Table 1 do not cover dimensions from a given point inside a closed hollow chamber to any other point outside the chamber. a b Tolerances for values of dimension E over 12 mm shall be subject to agreement between supplier and purchaser. Shall be subject to agreement between purchaser and supplier 3.2.3 Tolerances on wall thickness of solid and hollow profiles The tolerances on wall thickness (see Figure 3) of solid and hollow profiles shall be as specified in Table 2. 6
SS-EN 122-2:28 (E) Table 2 Tolerances on wall thickness of solid and hollow profiles Dimensions in millimetres Tolerances on: Nominal wall thickness A, B or C Wall thickness A Wall thickness B and C Over Up to and including Circumscribing circle CD 1 Circumscribing circle 1 < CD 35 Circumscribing circle CD 1 Circumscribing circle 1 < CD 35-2 ±,15 ±,2 ±,2 ±,3 2 3 ±,15 ±,25 ±,25 ±,4 3 6 ±,2 ±,3 ±,4 ±,6 6 1 ±,25 ±,35 ±,6 ±,8 1 15 ±,3 ±,4 ±,8 ± 1, 15 2 ±,35 ±,45 ± 1,2 ± 1,5 2 3 ±,4 ±,5 a a 3 4 ±,45 ±,6 a a a Shall be subject to agreement between supplier and purchaser. When, for functional reasons, tolerances are specified for both the outside and inside dimensions of hollow sections, then the deviations given in Table 2 shall not apply as a wall thickness tolerance, but as a tolerance on the difference in wall thickness. This difference shall be determined by measuring the maximum and minimum wall thickness in the same plane. 3.3 Length If fixed lengths are to be supplied, this shall be stated on the order. The fixed length tolerances shall be as specified in Table 3. Circumscribing circle CD Over Up to and including - 1 1 2 2 35 Table 3 Tolerances on fixed length Tolerances on fixed length L Dimensions in millimetres L 2 2 < L 5 5 < L 1 L > 1 +5 +7 +8 +7 +9 + 1 1 +1 +12 +14 Subject to agreement between supplier and purchaser If no fixed or minimum length is specified in the order, profiles may be delivered in random lengths. The length range and the tolerances on the random lengths shall be subject to agreement between supplier and purchaser. 7