www bzfxw com BRITISH STANDARD BS EN 485 4 1994 Aluminium and aluminium alloys — Sheet, strip and plate — Part 4 Tolerances on shape and dimensions for cold rolled products The European Standard EN 48[.]
BRITISH STANDARD Aluminium and aluminium alloys — Sheet, strip and plate — Part 4: Tolerances on shape and dimensions for cold-rolled products The European Standard EN 485-4:1993 has the status of a British Standard UDC 669.71-41-122.2:669.715.018.26 BS EN 485-4:1994 BS EN 485-4:1994 Cooperating organizations The European Committee for Standardization (CEN), under whose supervision this European Standard was prepared, comprises the national standards organizations of the following countries: This British Standard, having been prepared under the direction of the Non-ferrous Metals Standards Policy Committee, was published under the authority of the Standards Board and comes into effect on 15 January 1994 © BSI 12-1998 The following BSI references relate to the work on this standard: Committee reference NFM/35 Draft for comment 91/40616 DC ISBN 580 21703 Austria Oesterreichisches Normungsinstitut Belgium Institut belge de normalisation Denmark Dansk Standardiseringsraad Finland Suomen Standardisoimisliito, r.y France Association franỗaise de normalisation Germany Deutsches Institut für Normung e.V Greece Hellenic Organization for Standardization Iceland Technological Institute of Iceland Ireland National Standards Authority of Ireland Italy Ente Nazionale Italiano di Unificazione Luxembourg Inspection du Travail et des Mines Netherlands Nederlands Normalisatie-instituut Norway Norges Standardiseringsforbund Portugal Instituto Portugs da Qualidade Spain Asociación Espola de Normalización y Certificación Sweden Standardiseringskommissionen i Sverige Switzerland Association suisse de normalisation United Kingdom British Standards Institution Amendments issued since publication Amd No Date Comments BS EN 485-4:1994 Contents © BSI 12-1998 Cooperating organizations National foreword Page Inside front cover ii Foreword Text of EN 485-4 National annex NA (informative) Committees responsible National annex NB (informative) Cross-references Inside back cover Inside back cover i BS EN 485-4:1994 National foreword This Part of BS EN 485 has been prepared under the direction of the Non-ferrous Metals Standards Policy Committee and is the English language version of EN 485-4:1993 Aluminium and aluminium alloys — Sheet, strip and plate — Part Tolerances on shape and dimensions for cold-rolled products This Part of BS EN 485, together with BS EN 485-1:1994 Aluminium and aluminium alloys — Sheet, strip and plate — Part Technical conditions for inspection and delivery and BS EN 485-3:1994 Aluminium and aluminium alloys — Sheet, strip and plate — Part Tolerances on shape and dimensions for hot-rolled products will supersede parts of BS 1470:1987 Specification for wrought aluminium and aluminium alloys for general engineering purposes: plate, sheet and strip However, BS 1470:1987 will not be withdrawn until the remaining standards which replace it are published These are as follows: BS EN 485-2, Aluminium and aluminium alloys — Sheet, strip and plate — Part 2: Mechanical properties BS EN 515, Aluminium and aluminium alloys — Wrought products — Temper designations BS EN 573-3, Aluminium and aluminium alloys — Chemical composition and form of wrought products — Part 3: Chemical composition BS EN 573-4, Aluminium and aluminium alloys — Chemical composition and form of wrought products — Part 4: Forms of products 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 to 12, an inside back cover and a back cover This standard has been updated (see copyright date) and may have had amendments incorporated This will be indicated in the amendment table on the inside front cover ii © BSI 12-1998 EUROPEAN STANDARD EN 485-4 NORME EUROPÉENNE EUROPÄISCHE NORM October 1993 UDC 669.71-41-122.2:669.715.018.26 Descriptors: Iron and steel products, cold-rolled products, rolled products, metal plates, steel strips, aluminium, aluminium alloys, dimensional tolerances, form tolerances English version Aluminium and aluminium alloys — Sheet, strip and plate — Part 4: Tolerances on shape and dimensions for cold-rolled products Aluminium et alliages d’aluminium — Tôles, bandes et tôles épaisses — Partie 4: Tolérances sur forme et dimensions des produits laminés froid Aluminium und Aluminiumlegierungen — Bänder, Bleche und Platten — Teil 4: Grenzabmaße und Formtoleranzen für kaltgewalzte Erzeugnisse ｗｗｗ．ｂｚｆｘｗ．ｃｏｍ This European Standard was approved by CEN on 1993-10-08 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 Central Secretariat or to any CEN member The European Standards exist 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 Central Secretariat has the same status as the official versions CEN members are the national standards bodies of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom CEN European Committee for Standardization Comité Européen de Normalisation Europäisches Komitee für Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels © 1993 Copyright reserved to CEN members Ref No EN 485-4:1993 E EN 485-4:1993 Foreword This European Standard has been drawn up by CEN/TC 132 “Aluminium and aluminium alloys”, whose Secretariat is held by the Association Franỗaise de Normalisation (AFNOR) Within its programme of work, Technical Committee CEN/TC 132 entrusted CEN/TC 132/WG “Sheet, strip and plate” to work out the following standard: EN 485-4, “Aluminium and aluminium alloys — Sheet, strip and plate — Part 4: Tolerances on dimensions and form for cold-rolled products” This standard is part of a set of four standards The other standards deal with: EN 485-1, “Aluminium and aluminium alloys — Sheet, strip and plate — Part 1: Technical conditions for inspection and delivery” EN 485-2, “Aluminium and aluminium alloys — Sheet, strip and plate — Part 2: Mechanical properties” EN 485-3, “Aluminium and aluminium alloys — Sheet, strip and plate — Part 3: Tolerances on dimensions and form for hot-rolled products” 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 April 1994, and conflicting national standards shall be withdrawn at the latest by April 1994 The Standard was approved and in accordance with the CEN/CENELEC Internal Regulations, the following countries are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland, United Kingdom Contents Foreword Scope Normative references Dimensional tolerances 3.1 Thickness 3.2 Width 3.3 Length Shape tolerances 4.1 Lateral curvature 4.2 Flatness 4.3 Squareness Annex A (normative) Alloy split into Group I and Group II Annex B (normative) Other thickness tolerances Figure — Lateral curvature of plate or sheet of length L Figure — Transverse arch Figure — Longitudinal arch Figure — Buckles Figure — Edge waves Figure — Measurement of squareness Table — Thickness tolerances Table — Width tolerances for strip Table — Width tolerances for sheet and plate Table — Length tolerances for sheet and plate Table — Lateral curvature tolerances for strip Table — Lateral curvature tolerances for sheet and plate Table — Flatness tolerances for sheet and plate Table — Squareness tolerances for sheet and plate Table A1 — Alloy Groups Page 3 3 5 6 6 11 11 8 10 ｗｗｗ．ｂｚｆｘｗ．ｃｏｍ 5 7 11 © BSI 12-1998 EN 485-4:1993 Scope Dimensional tolerances This Part of EN 485 specifies the tolerances on shape and dimensions for wrought aluminium and aluminium alloy sheet, strip and plate obtained by cold-rolling, for general engineering applications It applies to products with a thickness over 0,20 mm up to and including 50 mm It does not apply to semi-finished rolled products in coiled form to be subjected to further rolling (reroll stock) or to special products such as corrugated, embossed, etc sheet and strip or to special applications such as aerospace, can stock, etc which are dealt with in separate European Standards Technical conditions for inspection and delivery of products covered by this standard are specified in EN 485-1 3.1 Thickness Normative references This European Standard incorporates by dated or undated reference, provisions from other publications These normative references are cited at the appropriate places in the text and the publications are listed hereafter For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision For undated references the latest edition of the publication referred to applies EN 485-1, Aluminium and aluminium alloys — Sheet, strip and plate — Part 1: Technical conditions for inspection and delivery EN 573-3, Aluminium and aluminium alloys — Chemical composition and form of wrought products — Part 3: Chemical composition 3.1.1 For the purpose of this European Standard the alloys are distributed into two groups which correspond to varying difficulty when manufacturing the products Tighter thickness tolerances apply to Group I alloys (soft alloys) The grouping is carried out according to the specified chemical composition limits of the alloys (see EN 573-3) as follows: — Group I alloys: — 000 series alloys; — non heat-treatable 000 and 000 series alloys; — 000 series alloys with less than % maximum specified silicon content; — 000 and 000 series alloys for which the maximum specified magnesium and manganese contents are each no greater than 1,8 % and their sum no greater than 2,3 % — Group II alloys: — all alloys which not belong to Group I The split into Group I and Group II of the most commonly used general engineering alloys is given in annex A (see Table A1) ｗｗｗ．ｂｚｆｘｗ．ｃｏｍ © BSI 12-1998 3.1.2 Thickness tolerances for sheet, strip and plate are specified in Table 3.1.3 Other thickness tolerances may be agreed between supplier and purchaser They are specified in annex B EN 485-4:1993 Table — Thickness tolerances Dimensions in millimetres Specified thickness Thickness tolerance for specified width Up to and including 000 Over Up to and including Alloy Group I 0,20 0,4 II Over 000 up Over 250 up Over 600 up to and to and to and including including including 250 600 000 Alloy Group I II Alloy Group I Alloy Group II I ± 0,02 ± 0,03 ± 0,04 ± 0,05 ± 0,05 ± 0,06 — Over 000 up to and including 500 Over 000 up to and including 500 Alloy Group Alloy Group Alloy Group II — Over 500 up to and including 000 I and II — I and II — I and II — 0,4 0,5 ± 0,03 ± 0,03 ± 0,04 ± 0,05 ± 0,05 ± 0,06 ± 0,06 ± 0,07 ± 0,10 — — 0,5 0,6 ± 0,03 ± 0,04 ± 0,05 ± 0,06 ± 0,06 ± 0,07 ± 0,07 ± 0,08 ± 0,11 — — 0,6 0,8 ± 0,03 ± 0,04 ± 0,06 ± 0,07 ± 0,07 ± 0,08 ± 0,08 ± 0,09 ± 0,12 — — 0,8 1,0 ± 0,04 ± 0,05 ± 0,06 ± 0,08 ± 0,08 ± 0,09 ± 0,09 ± 0,10 ± 0,13 — — 1,0 1,2 ± 0,04 ± 0,05 ± 0,07 ± 0,09 ± 0,09 ± 0,10 ± 0,10 ± 0,12 ± 0,14 — — 1,2 1,5 ± 0,05 ± 0,07 ± 0,09 ± 0,11 ± 0,10 ± 0,12 ± 0,11 ± 0,14 ± 0,16 — — 1,5 1,8 ± 0,06 ± 0,08 ± 0,10 ± 0,12 ± 0,11 ± 0,13 ± 0,12 ± 0,15 ± 0,17 — — 1,8 ± 0,06 ± 0,09 ± 0,11 ± 0,13 ± 0,12 ± 0,14 ± 0,14 ± 0,16 ± 0,19 — — 2,5 ± 0,07 ± 0,10 ± 0,12 ± 0,14 ± 0,13 ± 0,15 ± 0,15 ± 0,17 ± 0,20 — — 2,5 3,0 ± 0,08 ± 0,11 ± 0,13 ± 0,15 ± 0,15 ± 0,17 ± 0,17 ± 0,19 ± 0,23 — — 3,0 3,5 ± 0,10 ± 0,12 ± 0,15 ± 0,17 ± 0,17 ± 0,19 ± 0,18 ± 0,20 ± 0,24 — — 3,5 4,0 ± 0,15 ± 0,20 ± 0,22 4,0 5,0 ± 0,18 ± 0,22 5,0 6,0 ± 0,20 ± 0,24 6,0 8,0 ± 0,24 8,0 10 ｗｗｗ．ｂｚｆｘｗ．ｃｏｍ ± 0,23 ± 0,25 ± 0,34 ± 0,38 ± 0,24 ± 0,25 ± 0,29 ± 0,36 ± 0,42 ± 0,25 ± 0,26 ± 0,32 ± 0,40 ± 0,46 ± 0,30 ± 0,31 ± 0,32 ± 0,38 ± 0,44 ± 0,50 ± 0,27 ± 0,33 ± 0,36 ± 0,38 ± 0,44 ± 0,50 ± 0,56 10 12 ± 0,32 ± 0,38 ± 0,40 ± 0,41 ± 0,47 ± 0,53 ± 0,59 12 15 ± 0,36 ± 0,42 ± 0,43 ± 0,45 ± 0,51 ± 0,57 ± 0,63 15 20 ± 0,38 ± 0,44 ± 0,46 ± 0,48 ± 0,54 ± 0,60 ± 0,66 20 25 ± 0,40 ± 0,46 ± 0,48 ± 0,50 ± 0,56 ± 0,62 ± 0,68 25 30 ± 0,45 ± 0,50 ± 0,53 ± 0,55 ± 0,60 ± 0,65 ± 0,70 30 40 ± 0,50 ± 0,55 ± 0,58 ± 0,60 ± 0,65 ± 0,70 ± 0,75 40 50 ± 0,55 ± 0,60 ± 0,63 ± 0,65 ± 0,70 ± 0,75 ± 0,80 When measuring the thickness, a zone 10 mm wide from the edges of the product shall be disregarded © BSI 12-1998 EN 485-4:1993 3.2 Width 3.3 Length 3.2.1 Width tolerances for strip are specified in Table 3.3.1 Length tolerances for strip are not specified 3.3.2 Length tolerances for sheet and plate are specified in Table 3.2.2 Width tolerances for sheet and plate are specified in Table Table — Width tolerances for strip Dimensions in millimetres Specified thickness Over Up to and including 0,20 0,6 0,6 1,0 1,0 2,0 2,0 3,0 3,0 5,0 Width tolerance for specified width Up to and including 100 Over 100 up Over 300 up Over 500 up to Over 250 up Over 650 up to and to and and to and to and including 300 including 500 including 250 including 650 including 600 + 0,3 + 0,4 + 0,6 + 1,5 + 2,5 +3 + 0,3 + 0,5 +1 + 1,5 + 2,5 +3 + 0,4 + 0,7 + 1,2 +2 + 2,5 +3 +1 +1 + 1,5 +2 + 2,5 +4 — + 1,5 +2 +3 +3 +5 Table — Width tolerances for sheet and plate ｗｗｗ．ｂｚｆｘｗ．ｃｏｍ Dimensions in millimetres Specified thickness Over Width tolerance for specified width Up to and including 0,20 3,0 3,0 6,0 6,0 50 Up to and including 500 Over 500 up to Over 250 up to Over 000 up to Over 000 up to and and and and including 250 including 000 including 000 including 500 — + 1,5 +3 +4 +5 +3 +4 +5 +8 +8 +4 +5 +5 +8 +8 Table — Length tolerances for sheet and plate Dimensions in millimetres Specified thickness Over Up to and including 0,20 3,0 3,0 6,0 6,0 50 © BSI 12-1998 Length tolerance for specified length Up to and Over 000 up to Over 000 up to Over 000 up to including 000 and and and including 000 including 000 including 000 +3 +4 +6 +8 +4 +6 +8 + 10 +6 +8 + 10 Over 000 + 0,2 % of specified length + 10 EN 485-4:1993 Shape tolerances 4.2 Flatness 4.1 Lateral curvature 4.2.1 Flatness tolerances for strip are not specified 4.1.1 Lateral curvature tolerances for strip with width up to and including 500 mm are specified in Table 4.2.2 Flatness tolerances for sheet and plate are specified in Table and are expressed as a percentage of the length L and /or the width W and /or the measured chord length l Table — Lateral curvature tolerances for strip (measured on 000 mm strip length) Dimensions in millimetres Specified width Over Lateral curvature Up to and including dmax ≥ 25a 100 100 300 300 600 600 000 000 000 000 500 a For widths less than 25 mm the tolerances are to be agreed between purchaser and supplier The deviation from straightness, d, is measured as indicated in Figure 1, for a length L of 000 mm, from one end of the strip, while the strip is resting on a horizontal base plate 4.1.2 Lateral curvature tolerances for sheet and plate are specified in Table Deviation from flatness, d, resulting from arching, buckling or edge waves, is measured as shown in Figure to Figure 5, using a lightweight straightedge and a feeler gauge, dial gauge or scale, while the sheet or plate is resting on a horizontal base plate concave side upwards These tolerances not apply to sheet and plate supplied in the O (annealed) or F (as fabricated) tempers or to bright sheet These tolerances not include end or corner turnup 4.3 Squareness 4.3.1 Squareness tolerances for strip are not specified 4.3.2 Squareness tolerances for sheet and plate are specified in Table ｗｗｗ．ｂｚｆｘｗ．ｃｏｍ The squareness tolerance is expressed as the maximum allowable difference in length of diagonals AA and BB as shown in Figure The deviation from straightness, d, is measured as indicated in Figure 1, while the sheet or plate is resting on a horizontal base plate Figure — Lateral curvature of plate or sheet of length L (see 4.1.2) © BSI 12-1998 EN 485-4:1993 Table — Lateral curvature tolerances for sheet and plate Dimensions in millimetres Specified width Lateral curvature dmax for specified length L Up to and including Up to and Over 000 up to Over 000 up to Over 500 up to Over 000 up to and including and and and including 000 15 000 including 000 including 500 including 000 ≥ 100a 300 — — 300 600 1,5 — — 600 000 000 000 — 0.1 % of specified length 000 500 — — Over a For widths less than 100 mm the tolerances are to be agreed between purchaser and supplier Table — Flatness tolerances for sheet and plate Specified thickness Total deviation Partial deviation mm % % (for a chord of at least 300 mm) Over Up to and including on length on width dmax/L dmax/W dmax/l 0,20 0,50 by agreement by agreement by agreement 0,50 3,0 0,4 0,5 0,5 3,0 6,0 0,3 0,4 0,4 0,2 0,4 0,3 6,0 50 Figure — Transverse arch (see 4.2.2) © BSI 12-1998 EN 485-4:1993 Figure — Longitudinal arch (see 4.2.2) Figure — Buckles (see 4.2.2) © BSI 12-1998 EN 485-4:1993 Figure — Edge waves (see 4.2.2) Table — Squareness tolerances for sheet and plate Dimensions in millimetres Specified length Over Up to and including 000 000 000 000 000 © BSI 12-1998 Specified thickness 000 000 000 15 000 Squareness tolerance for specified width Up to and Over 000 up to Over 500 up to Over 000 up to including 000 and and and including 500 including 000 including 500 ≤6 — — — >6 — — — ≤6 — >6 — ≤6 5 >6 7 10 ≤6 8 10 >6 10 10 12 ≤6 10 10 12 12 >6 12 12 15 15 EN 485-4:1993 Figure — Measurement of squareness (see 4.3.2) 10 © BSI 12-1998 EN 485-4:1993 Annex A (normative) Alloy split into Group I and Group II Table A1 — Alloy Groups Group I 080A 070A 050A 200 003 103 005 105 006 007 005 050 011A 014 017A 024 040 049 251 052 083 086 061 082 020 021 022 075 004 Group II 154A 454 754 182 Annex B (normative) Other thickness tolerances If agreed between supplier and purchaser, Group I alloys may be supplied to Group II thickness tolerances © BSI 12-1998 11 12 blank BS EN 485-4:1994 National annex NA (informative) Committees responsible The United Kingdom participation in the preparation of this European Standard was entrusted by the Non-ferrous Metals Standards Policy Committee (NFM/-) to Technical Committee NFM/35, upon which the following bodies were represented: Aluminium Federation Aluminium Stockholders’ Association Association of Light Alloy Refiners Limited Light Metal Founders’ Association London Metal Exchange Magnesium Industry Council Royal Institute of British Architects The following bodies were also represented in the drafting of the standard, through subcommittees and panels: Association of British Welded Aluminium Tube Makers Institution of Structural Engineers Metal Packaging Manufacturers’ Association National annex NB (informative) Cross-references Publication referred to Corresponding British Standard EN 485-1:1993 BS EN 485 Aluminium and aluminium alloys — Sheet, strip and plate Part 1:1994 Technical conditions for inspection and delivery EN 573-3:1994 BS EN 573 Aluminium and aluminium alloys — Chemical composition and form of wrought products Part 3:1994 Chemical composition © BSI 12-1998 BSI 389 Chiswick High Road London W4 4AL | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BSI Ð British Standards Institution BSI is the independent 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