1、BRITISH STANDARDBS EN 570:2007Aluminium and aluminium alloys Impact extrusion slugs obtained from wrought products SpecificationICS 77.150.10g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g6
2、0g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 570:2007This British Standard was published under the authority of the Standards Policy and Strategy Committee on 29 February 2008 BSI 2008ISBN 978 0 580 54084 4National forewordThis British Standard is the UK implementation of EN 570:2007. It supersede
3、s BS EN 570:1995 which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee NFE/35, Light metals and their alloys.A list of organizations represented on this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 on request to its secretary.This publication does not purport to include all th
4、e 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 publicationDate CommentsEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 570January 2007ICS 77.
5、150.10 Supersedes EN 570:1994 English VersionAluminium and aluminium alloys - Impact extrusion slugsobtained from wrought products - SpecificationAluminium et alliages daluminium - Pions de filage parchoc obtenus partir de produits corroys - SpcificationAluminium und Aluminiumlegierungen - Butzen zu
6、mFliepressen aus Halbzeug hergestellt - SpezifikationThis European Standard was approved by CEN on 15 December 2006.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any
7、alteration. Up-to-date lists and bibliographical references concerning such nationalstandards 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 t
8、ranslationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, German
9、y, 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 STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManage
10、ment Centre: rue de Stassart, 36 B-1050 Brussels 2007 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 570:2007: EEN 570:2007 (E) 2 Contents Page Foreword3 1 Scope 4 2 Normative references 4 3 Terms and definitions .4 4 Ordering infor
11、mation.5 4.1 General5 4.2 Designation 5 5 Requirements.6 5.1 Tolerances on dimensions and form.6 5.2 Chemical composition 10 5.3 Mechanical properties.10 5.4 Other requirements11 6 Testing 11 6.1 Chemical composition 11 6.2 Brinell hardness.11 6.3 Surface quality .12 7 Sampling rate and test certifi
12、cates 12 8 Packaging and marking 12 9 Complaints of non-conformity .12 EN 570:2007 (E) 3 Foreword This document (EN 570:2007) 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 sta
13、tus of a national standard, either by publication of an identical text or by endorsement, at the latest by July 2007, and conflicting national standards shall be withdrawn at the latest by July 2007. This document supersedes EN 570:1994. Within its programme of work, Technical Committee CEN/TC 132 e
14、ntrusted CEN/TC 132/WG 11 “Slugs for impact extrusion“ to revise EN 570:1994. The following technical modifications have been introduced during the revision: Clause 2: References to EN 754-3, EN 754-7, EN 754-8, EN 755-3, EN 755-7 and EN 755-8 added; Clause 4: Text modified; Clause 5: Text in 5.1.1
15、modified, former Table 2 deleted and replaced by reference to EN 755-3, former Table 4 deleted and replaced by references to EN 755-7 and EN 755-8; Table 6: Materials EN AW-1090, EN AW-1100, EN AW-3003, EN AW-5251, EN AW-6005A and EN AW-6063 added; materials EN AW-5305, EN AW-5505 and EN AW-5110 del
16、eted. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN 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 licences
17、on standardised standard 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 coun-tries are bound to implement this Eur
18、opean Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Den-mark, 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 K
19、ingdom. EN 570:2007 (E) 4 1 Scope This document specifies the technical conditions for inspection and delivery, tolerances on dimensions and form and other requirements for flat or preformed wrought aluminium and wrought aluminium alloy slugs for impact extrusion. It applies to slugs produced either
20、 by punching of rolled products or by cutting of extruded products. Slugs covered in this document are suitable for the manufacture of impact extruded parts for packaging and indus-trial applications. 2 Normative references The following referenced documents are indispensable for the application of
21、this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 573-3, Aluminium and aluminium alloys Chemical composition and form of wrought products Part 3: Chemical composition EN 75
22、4-3, Aluminium and aluminium alloys Cold drawn rod/bar and tube Part 3: Round bars, tolerances on dimensions and form EN 754-5, Aluminium and aluminium alloys Cold drawn rod/bar and tube Part 5: Rectangular bars, tolerances on dimensions and form EN 754-7, Aluminium and aluminium alloys Cold drawn r
23、od/bar and tube Part 7: Seamless tubes, tolerances on dimensions and form EN 754-8, Aluminium and aluminium alloys Cold drawn rod/bar and tube Part 8: Porthole tubes, tolerances on dimensions and form EN 755-3, Aluminium and aluminium alloys Extruded rod/bar, tube and profile Part 3: Round bars; tol
24、erances on dimensions and form EN 755-5, Aluminium and aluminium alloys Extruded rod/bar, tube and profile Part 5: Rectangular bars, toler-ances on dimensions and form EN 755-7, Aluminium and aluminium alloys Extruded rod/bar, tube and profiles Part 7: Seamless tubes, toler-ances on dimensions and f
25、orm EN 755-8, Aluminium and aluminium alloys Extruded rod/bar, tube and profiles Part 8: Porthole tubes, toler-ances on dimensions and form EN 10204, Metallic products Types of inspection documents EN ISO 6506-1, Metallic materials Brinell hardness test Part 1: Test method (ISO 6506-1:2005) 3 Terms
26、and definitions For the purposes of this document the following terms and definitions apply. 3.1 slug piece of metal of uniform thickness of regular or irregular shape taken from a wrought product, usually for impact extrusion with or without a centre hole 3.2 thickness in slugs punched from rolled
27、products, the thickness is measured perpendicular to the rolling plane, whilst in slugs cut from extruded products thickness is measured in the extrusion direction EN 570:2007 (E) 5 4 Ordering information 4.1 General The selection of material and of the condition of supply is at the purchasers discr
28、etion. The purchaser should state when ordering the intended use and any further processing envisaged. The order shall describe the slug in the condition of delivery. If preformed slugs are required, the type of preforming shall be given when ordering, together with a drawing speci-fying the details
29、. 4.2 Designation 4.2.1 Standard designation The standard designation shall be given in the following order: the designation of product (slug); the number of this European Standard (EN 570); the designation of the aluminium or aluminium alloy, see 5.2; the slug shape, e.g. flat, round with or withou
30、t hole, rectangular, preformed; dimensions in millimetres; the surface finish, see 5.4.2. 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, material designation, slug shape: round (rd), diameter thickness, surface finish
31、, bright (br) e.g.: Slug EN 570 EN AW-1050A rd 24,8 4,2 br or Slug EN 570 EN AW-Al 99,5 rd 24,8 4,2 br Figure 1 Round slug without a centre hole 4.2.2.2 Round slug with a centre hole (see Figure 2) Description of product, EN number, material designation, slug shape: round (rd), diameter thickness ho
32、le di-ameter (ch), surface finish blasted (bl), e.g.: Slug EN 570 EN AW-1050A rd 24,8 4,2 8ch bl orSlug EN 570 EN AW-Al 99,5 rd 24,8 4,2 8ch bl EN 570:2007 (E) 6 Figure 2 Round slug with a centre hole 4.2.2.3 Rectangular slug (see Figure 3) Description of product, EN number, material designation, sl
33、ug shape: rectangular (rect), length width thickness, corner radius (R), e.g. R1 if 1 mm, surface finish tumbled (tu), e.g.: Slug EN 570 EN AW-1050A rect 51 26,5 6,1 R1 tu or Slug EN 570 EN AW-Al 99,5 rect 51 26,5 6,1 R1 tu Figure 3 Rectangular slug 4.2.3 Designation in order When ordering, the stan
34、dard designation shall be supplemented by stating the mass (preceding the standard des-ignation). EXAMPLE 4 t of round flat slugs without a centre hole with scoured (sc) surface finish: 4 t Slug EN 570 EN AW-1050A flat, rd 29,8 4 sc or 4 t Slug EN 570 EN AW-Al 99,5 flat, rd 29,8 4 sc 5 Requirements
35、5.1 Tolerances on dimensions and 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 Tables 1 to 5 shall apply for slugs after punching or cutting in the bright cond
36、ition. The tolerances on dimensions for slugs with a roughened surface shall be agreed between supplier and purchaser, as an increase of the outside diameters is to be expected. This increase in dimensions has to be taken into account by the supplier in his manufacturing process. The increase in dim
37、ensions depends on the material used, the mass of the slug and the method of roughing. EN 570:2007 (E) 7 Limits in the manufacture of punched slugs: a) In the case of round slugs, the thickness should not exceed the diameter. b) In the case of rectangular slugs, the thickness should not exceed the w
38、idth. c) In the case of slugs with a centre hole, the slug thickness should not exceed the hole diameter. If these limits are exceeded, slugs should be manufactured by cutting. 5.1.2 Slug diameter The tolerances specified in Table 1 for punched round slugs shall apply. For sawn round slugs the toler
39、ances on diameter as specified in EN 755-3 shall apply. If tighter tolerances are needed, this shall be specified in the order. In this case tolerances as specified in EN 754-3 shall apply. Table 1 Tolerances on diameter of punched slugs Dimensions in millimetres Slug diameter over up to Tolerancesa
40、 10 0,02 10 40 0,03 40 60 0,04 60 80 0,05 80 120 0,06 120 150 0,08 150 200 0,10 aThe tolerances include the circularity tolerance. 5.1.3 Hole diameter of punched slugs The tolerances specified in Table 2 shall apply only for flat slugs with a hole, with the hole diameter not exceeding 40 % of the sl
41、ug 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 purchaser. Table 2 Tolerances on hole diameter of punched slugs Dimensions in millimetres Hole diameter over up to Tolerances
42、 10 0,05 10 20 0,07 20 0,1 EN 570:2007 (E) 8 The hole eccentricity e shall be determined according to Figure 4 and shall not exceed 0,15 mm. Figure 4 Hole eccentricity The tolerances for the hole diameter include the circularity tolerance. 5.1.4 Diameters and wall thickness of sawn slugs with a hole
43、 For sawn round slugs with a hole, produced from round tubes with or without extrusion seams the tolerances as specified in EN 755-8 or EN 755-7 shall apply. If tighter tolerances are needed for example in accordance with EN 754-7 or EN 754-8 this shall be specified in the order. 5.1.5 Length and wi
44、dth of rectangular slugs The tolerances specified in Table 3 shall apply to punched rectangular slugs. Table 3 Tolerances on length and width of punched rectangular slugs Dimensions in millimetres Length and width over up to Tolerancesa 10 0,05 10 20 0,08 20 40 0,10 40 60 0,12 60 120 0,14 120 150 0,
45、17 150 200 0,20 aThe corner radius shall not be less than 1 mm and shall be specified in the order. 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 shall be specified in the order. In
46、this case tolerances as specified in EN 754-5 shall apply. EN 570:2007 (E) 9 5.1.6 Thickness The tolerances specified in Tables 4 and 5 shall apply to the slug thickness. Table 4 Tolerances on thickness of punched slugs Dimensions in millimetres Slug thickness over up to Tolerancesa 2,8 0,03 2,8 6,5
47、 0,05 6,5 8,5 0,07 8,5 10,5 0,10 10,5 15 0,14 15 20 0,18 20 25 0,22 25 30 0,26 30 40 0,30 aThe tolerances apply only to slugs with a maximum thickness not exceeding half the diameter (in the case of round slugs) or not exceeding half the width (in the case of rectangular slugs). In all other cases,
48、the tolerances shall be agreed at the time of ordering. When measuring the thickness, the burr arising from punching or the edge radii shall be disregarded. Table 5 Tolerances on thickness of sawn slugs Dimensions in millimetres Diameter or width Tolerancesaon thickness for thickness over up to from 7 up to 10 over 10 up to 20 over 20 up to 40 over 40 up to 70 over 70 up to 110 15 0,15 0,15 0,15 0,20 0,25 15 30 0,15 0,20 0,20 0,25 0,30 30 70 0,15 0,20 0,25 0,30 0,35 70 100 0,30 0,35 0,40 0,45 0,50 100 130 0,40 0,45 0,50 0,60 0,70 aThe parallelism and squareness of the sawn surf
