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1、BRITISH STANDARD BS EN 570:1995 Aluminium and aluminium alloys Impact extrusion slugs obtained from wrought products Specifications The European Standard EN 570:1994 has the status of a British Standard UDC 669.71-412:669.715.018.26-412:621.777.4:620.1 Licensed Copy: sheffieldun sheffieldun, na, Mon
2、 Nov 06 09:15:28 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 570:1995 This British Standard, having been prepared under the direction of the Engineering Sector Board, was published under the authority of the Standards Board and comes into effect on 15 April 1995 BSI 08-1999 The following BSI re
3、ferences relate to the work on this standard: Committee reference NFE/35 Draft for comment 91/47490 DC ISBN 0 580 23697 8 Committees responsible for this British Standard The preparation of this British Standard was entrusted by the Engineering Sector Board to Technical Committee NFE/35, Light metal
4、s and their alloys, upon which the following bodies were represented: Aluminium Federation Aluminium Stockholders Association London Metal Exchange Magnesium Industry Council The following bodies were also represented in the drafting of the standard, through subcommittees and panels: Association of
5、British Welded Aluminium Tube Makers Association of Light Alloy Refiners Limited Institution of Structural Engineers Metal Packaging Manufacturers Association Amendments issued since publication Amd. No.DateComments Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 09:15:28 GMT+00:00 2006, Unco
6、ntrolled Copy, (c) BSI BS EN 570:1995 BSI 08-1999i Contents Page Committees responsibleInside front cover National forewordii Foreword2 Text of EN 5703 List of referencesInside back cover Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 09:15:28 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN
7、 570:1995 ii BSI 08-1999 National foreword This British Standard has been prepared by Technical Committee NFM/35 and is the English language version of EN 570:1994 Aluminium and aluminium alloys Impact extrusion slugs obtained from wrought products Specifications, published by the European Committee
8、 for Standardization (CEN). 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. Publication r
9、eferred toCorresponding British Standard EN 573-3:1994BS EN 573 Aluminium and aluminium alloys Chemical composition and form of wrought products Part 3:1995 Chemical composition EN 754-5:1994BS EN 754 Aluminium and aluminium alloys Cold drawn rod/bar and tube Part 5:1994 Drawn rectangular bars, tole
10、rances on dimensions and forma EN 755-5:1994BS EN 755 Aluminium and aluminium alloys Extruded rod/bar, tube and profile Part 5:1994 Extruded rectangular bars, tolerances on dimensions and forma EN 10204:1991BS EN 10204:1991 Metallic products Types of inspection documents a In preparation Summary of
11、pages This document comprises a front cover, an inside front cover, pages i and ii, the EN title page, pages 2 to 8, 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 t
12、he inside front cover. Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 09:15:28 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 570 August 1994 UDC 669.71-412:669.715.018.26-412:621.777.4:620.1 Descriptors: Wrought product, aluminium, aluminium
13、alloy, slug, designation, dimension, dimensional tolerance, form tolerance, chemical composition, mechanical property, surface condition, quality English version Aluminium and aluminium alloys Impact extrusion slugs obtained from wrought products Specifications Aluminium et alliages daluminium Pions
14、 de filage par choc obtenus partir de produits corroys Spcifications Aluminium und Aluminiumlegierungen Butzen zum Fliepressen aus Halbzeug hergestellt Spezifikationen This European Standard was approved by CEN on 1994-08-18. CEN members are bound to comply with the CEN/CENELEC Internal Regulations
15、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. This European
16、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 Central Secretariat has the same status as the official versions. CEN members are the national
17、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 Comit Europen de Normalisation Europisches Komitee fr Normung
18、 Central Secretariat: rue de Stassart 36, B-1050 Brussels 1994 Copyright reserved to CEN members Ref. No. EN 570:1994 E Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 09:15:28 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 570:1994 BSI 08-1999 2 Foreword This European Standard has been drawn
19、up by CEN/TC 132, Aluminium and aluminium alloys, whose Secretariat is held by the Association Franaise de Normalisation (AFNOR). Within its programme of work, Technical Committee CEN/TC 132 entrusted CEN/TC 132/WG 11, Slugs for impact extrusion, to prepare the following standard: EN 570, Aluminium
20、and aluminium alloys Impact extrusion slugs obtained from wrought products Specifications. 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 February 1995, and conflicting national standards shall b
21、e withdrawn at the latest by February 1995. According to 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
22、, Sweden, Switzerland, United Kingdom. Contents Page Foreword2 1Scope3 2Normative references3 3Definitions3 3.1Slug3 3.2Thickness3 4Orders or tenders3 4.1General3 4.2Designation3 5Requirements4 5.1Tolerances on dimensions and form4 5.2Chemical composition6 5.3Mechanical properties6 5.4Other requirem
23、ents6 6Testing8 6.1Chemical composition8 6.2Brinell hardness8 6.3Surface quality8 7Sampling rate and test certificates8 8Packaging and marking8 9Arbitration8 Figure 14 Figure 24 Figure 34 Figure 45 Table 1 Tolerances on diameter of punched slugs5 Table 2 Tolerances on diameter of sawn slugs5 Table 3
24、 Tolerances on hole diameter of punched slugs5 Table 4 Tolerances on outside or inside diameter and wall thickness for sawn slugs6 Table 5 Tolerances on length and width of punched rectangular slugs6 Table 6 Tolerances on thickness of punched slugs6 Table 7 Tolerances on thickness of sawn slugs7 Tab
25、le 8 Material designation and Brinell hardness7 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 09:15:28 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 570:1994 BSI 08-19993 1 Scope This European Standard specifies the technical conditions for inspection and delivery, tolerances on dimensions
26、and form and other requirements for flat or preformed aluminium and aluminium alloy slugs for impact extrusion. It applies to slugs produced either by punching of rolled products or by cutting of extruded products. This standard does not apply to slugs produced from unwrought cast ingots. Slugs cove
27、red in this standard are suitable for the manufacture of impact extruded parts for packaging and industrial applications. 2 Normative references This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropri
28、ate 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 publicati
29、on referred to applies. EN 573-3, Aluminium and aluminium alloys Chemical composition and form of wrought products Part 3: Chemical composition. EN 754-5, Aluminium and aluminium alloys Cold drawn rod/bar and tube Part 5: Rectangular bars, tolerances on dimensions and form1). EN 755-5, Aluminium and
30、 aluminium alloys Extruded rod/bar, tube and profile Part 5: Rectangular bars, tolerances on dimensions and form1). EN 10204, Metallic products Types of inspection documents. ISO 6506, Metallic materials Hardness test Brinell test. 3 Definitions For the purposes of this standard the following defini
31、tions apply: 3.1 slug a piece of metal of uniform thickness of regular or irregular shape taken from a wrought product, usually for impact extrusion. Slugs are supplied with or without a centre hole 3.2 thickness in slugs punched from rolled products, the thickness is measured perpendicular to the r
32、olling plane, whilst in slugs cut from extruded products thickness is measured in the extrusion direction 4 Orders or tenders 4.1 General The selection of material and of the condition of supply is at the customers discretion. It is recommended that, when ordering, the intended use and any further p
33、rocessing envisaged be stated. If preformed slugs are required, the type of preforming shall be given when ordering, together with a drawing specifying the details. In addition, details on shape and size shall be given in the designation (see 4.2). 4.2 Designation 4.2.1 Standard designation The stan
34、dard designation shall be given in the following order: the description of product (slug); the number of this European Standard; the slug shape, e.g. flat, round with or without hole, rectangular, preformed; dimensions in millimetres; the designation of the aluminium or aluminium alloy, see 5.2; the
35、 surface finish, see 5.4.1. 4.2.2 Examples of standard designation 4.2.2.1 Round slug without a centre hole (see Figure 1) Description of product, EN number, slug shape: round (rd), diameter thickness, material designation, e.g. Slug EN 570 rd 24,8 4,2 EN AW-1050A or Slug EN 570 rd 24,8 4,2 EN AW-A1
36、 99,5 1) Under preparation Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 09:15:28 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 570:1994 4 BSI 08-1999 4.2.2.2 Round slug with a centre hole (see Figure 2) Description of product, EN number, slug shape: round (rd), diameter thickness hole diam
37、eter (ch), material designation, e.g. Slug EN 570 rd 24,8 4,2 8ch EN AW-1050A or Slug EN 570 rd 24,8 4,2 8ch EN AW-A1 99,5 4.2.2.3 Rectangular slug (see Figure 3) Description of product, EN number, slug shape: rectangular (rect), length width thickness, corner radius (R), e.g. R1 if 1 mm, material d
38、esignation, e.g. Slug EN 570 rect 51 26,5 6,1 R1 EN AW 1050A or Slug EN 570 rect 51 26,5 6,1 R1 EN AW-A1 99,5 4.2.3 Designation in order When ordering, the standard designation shall be supplemented by stating as applicable, the mass (preceding the standard designation), the slug shape (flat or pref
39、ormed), and the surface finish (as specified in 5.4.1), e.g. Example: 4 t of round flat slugs without a centre hole with bright surface finish: 4 t Slug EN 570 flat, bright, rd 29,8 4 EN AW 1050A or 4 t Slug EN 570 flat, bright, rd 29,8 4 EN AW-A1 99,5 5 Requirements 5.1 Tolerances on dimensions and
40、 form 5.1.1 General The requirements for tolerances on dimensions and form for slugs manufactured in a flat or preformed shape are specified in 5.1.2 to 5.1.6. The tolerances specified in Table 1 to Table 7 shall apply for slugs after punching or cutting in the bright condition. Slugs with a roughen
41、ed surface shall be assumed to have an average increase in dimensions of 0,05 mm. The increase in dimensions depends on the material used and the mass of the slug. Particular tolerances for slugs with a roughened surface shall be agreed between supplier and customer. The limits of size in the manufa
42、cture of punched slugs shall be as follows. a) In the case of round slugs, the thickness shall not exceed the diameter. b) In the case of rectangular slugs, the thickness shall not exceed the width. c) In the case of slugs with a centre hole, the slug thickness shall not exceed the hole diameter. If
43、 these limits are exceeded, slugs shall be manufactured by cutting. 5.1.2 Slug diameter The tolerances specified in Table 1 for punched round slugs and Table 2 for sawn slugs shall apply. Figure 1 Figure 2 Figure 3 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 09:15:28 GMT+00:00 2006, Uncon
44、trolled Copy, (c) BSI EN 570:1994 BSI 08-19995 Table 1 Tolerances on diameter of punched slugs Table 2 Tolerances on diameter of sawn slugs 5.1.3 Hole diameter of punched slugs The tolerances specified in Table 3 shall apply only for flat slugs with a hole, with the hole diameter not exceeding 40 %
45、of the slug diameter and the slug thickness not exceeding two thirds of the hole diameter. In all other cases, the tolerances of the hole diameter shall be agreed between supplier and customer. Table 3 Tolerances on hole diameter of punched slugs The hole eccentricity e shall be determined according
46、 to Figure 4 and shall not exceed 0,15 mm. The tolerances for the hole diameter include the circularity tolerance. 5.1.4 Diameters and wall thickness of sawn slugs with a hole The tolerances specified in Table 4 shall apply to sawn slugs with a hole, produced from round tubes with or without extrusi
47、on seams. 5.1.5 Length and width of rectangular slugs The tolerances specified in Table 5 shall apply to punched rectangular slugs. For sawn rectangular slugs up to 200 mm the tolerances for the cross-section of the bar as specified in EN 755-5 shall apply. If tighter tolerances are needed this shal
48、l be specified in the order. In this case tolerances as specified in EN 754-5 shall apply. Dimensions in millimetres Slug diameterTolerancesa overup to 10 0,02 1040 0,03 4060 0,04 6080 0,05 80120 0,06 120150 0,08 150200 0,10 a The tolerances include the circularity tolerance. Dimensions in millimetr
49、es Slug diameterTolerancesa overup to U 36 610 1018 1830 3050 5065 6580 80130 a The tolerances include the circularity tolerance. 0 0,07 0 0,09 0 0,11 0 0,13 0 0,16 0 0,5 0 0,6 0 0,9 Dimensions in millimetres Hole diameterTolerances overup to 10 0,05 1020 0,07 20 0,1 Figure 4 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 09:15:28 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 570