1、BS EN 487:2009ICS 77.150.10NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDAluminium andaluminium alloys Rolling ingots SpecificationsThis British Standardwas published underthe authority of theStandards Policy andStrategy Committee on 30September 2009 BSI 2009I
2、SBN 978 0 580 62124 6Amendments/corrigenda issued since publicationDate CommentsBS EN 487:2009National forewordThis British Standard is the UK implementation of EN 487:2009. Itsupersedes BS EN 487:1994 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee NFE
3、/35, Light metals and their alloys.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisionsof a contract. Users are responsible for its correct application.Compliance with a British Stan
4、dard cannot confer immunityfrom legal obligations.BS EN 487:2009EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 487August 2009ICS 77.150.10 Supersedes EN 487:1993 English VersionAluminium and aluminium alloys - Rolling ingots - SpecificationsAluminium et alliages daluminium - Plaques de laminage -
5、SpcificationsAluminium und Aluminiumlegierungen - Walzbarren -SpezifikationenThis European Standard was approved by CEN on 24 July 2009.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 s
6、tandard without any 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 othe
7、r language made by translationunder 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, Fi
8、nland,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 STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMI
9、TEE FR NORMUNGManagement Centre: Avenue Marnix 17, B-1000 Brussels 2009 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 487:2009: EBS EN 487:2009EN 487:2009 (E) 2 Contents Page Foreword 3 1 Scope 4 2 Normative references 4 3 Terms an
10、d definitions .4 4 Ordering information .4 5 Requirements .5 5.1 Production and manufacturing processes .5 5.2 Chemical composition 5 5.3 Surface and internal quality 6 5.4 Tolerances on dimensions .6 5.5 Tolerances of form.7 5.6 Sawing 9 5.7 Scalping 9 6 Test procedures .9 6.1 Analysis of chemical
11、composition .9 6.2 Inspection of physical and metallurgical properties. 10 6.3 Other tests . 10 7 Inspection documents 10 7.1 Certificate of mass and analysis . 10 7.2 Inspection certificate 10 8 Marking 11 8.1 General . 11 8.2 Edge marking 11 8.3 Top end marking . 11 9 Packaging, transport and stor
12、age . 11 10 Complaints 12 Bibliography . 13 BS EN 487:2009EN 487:2009 (E) 3 Foreword This document (EN 487:2009) 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 nati
13、onal standard, either by publication of an identical text or by endorsement, at the latest by February 2010, and conflicting national standards shall be withdrawn at the latest by February 2010. Attention is drawn to the possibility that some of the elements of this document may be the subject of pa
14、tent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 487:1993. Within its programme of work, Technical Committee CEN/TC 132 entrusted CEN/TC 132/WG 2 “Extrusion billets and rolling ingots“ to revise EN 487:1993. CEN/
15、TC 132 affirms 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. According to the CEN/CENELEC Internal Regulations, the nation
16、al 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, Po
17、land, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 487:2009EN 487:2009 (E) 4 1 Scope This European Standard specifies the general requirements to be met by rolling ingots of aluminium or aluminium alloys obtained by semi-continuous vertical casting.
18、 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. EN 573-1, Aluminium and a
19、luminium alloys Chemical composition and form of wrought products Part 1: Numerical designation system EN 573-2, Aluminium and aluminium alloys Chemical composition and form of wrought products Part 2: Chemical symbol based designation system EN 573-3, Aluminium and aluminium alloys Chemical composi
20、tion and form of wrought products Part 3: Chemical composition EN 10204, Metallic products Types of inspection documents EN 12258-1:1998, Aluminium and aluminium alloys Terms and definitions Part 1: General terms EN 14242, Aluminium and aluminium alloys Chemical analysis Inductively coupled plasma o
21、ptical emission spectral analysis EN 14726, Aluminium and aluminium alloys Chemical analysis Guideline for spark optical emission spectrometric analysis 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 12258-1:1998 and the following apply. 3.1 heat qua
22、ntity of liquid metal that has simultaneously undergone the same preparatory treatment in the furnace before the casting operation 4 Ordering information The ordering information shall define the product required and shall contain the following: a) the form of the product (rolling ingot); b) the des
23、ignation of the aluminium or aluminium alloy according to EN 573-1 and 573-2 (or the purchaser alloy designation after agreement between supplier and purchaser). Tighter limits than the composition limits stated in EN 573-3 may be specified as required; c) whether as cast or homogenized. The homogen
24、izing parameters should be agreed between the supplier and the purchaser; BS EN 487:2009EN 487:2009 (E) 5 d) the number of this European Standard; e) the dimensions and shape of the product: 1) nominal thickness (expressed in millimetres); 2) nominal width (expressed in millimetres); 3) nominal leng
25、th and tolerance if different from standard (expressed in millimetres); 4) cross sectional profile details or drawing number (expressed in millimetres); f) sawing code (see 5.6.4); g) whether rolling ingots are to be supplied scalped or not; h) whether the rolling ingots are scalped or not before ho
26、t rolling; i) end use (e.g. foil, packaging) (see 5.1); j) quantity: 1) mass (in metric tonnes) or number of pieces; 2) quantity tolerances if required; k) any requirements for inspection documents (see Clause 7); l) any additional requirements agreed between supplier and purchaser (see Clause 7). 5
27、 Requirements 5.1 Production and manufacturing processes The product requirements as formulated in this clause normally are not sufficient for rolling ingots to meet the purchasers requirements for rolled products. Therefore, the purchaser shall give the manufacturer full details concerning the end
28、use requirements, so that the manufacturing conditions of the manufacturer may best be adjusted to fulfil the requirements. It is recommended that trial quantities be produced to confirm that the end use requirements are met. It is also recommended that the purchaser asks the manufacturer to advise
29、of any significant change in the manufacturing processes which may affect the quality of the final product. It is recommended that a quality assurance system be implemented as described in EN ISO 9000 and EN ISO 9004. 5.2 Chemical composition The chemical composition of the ingots shall conform to t
30、he compositions specified in EN 573-3. It is recommended that tighter composition limits than those given in EN 573-3 be agreed between purchaser and supplier as required. Control of alkali metals and other specific trace elements is recommended: a) sodium and calcium for magnesium alloys; BS EN 487
31、:2009EN 487:2009 (E) 6 b) lithium for foil end use alloys; c) beryllium. The maximum hydrogen content and the related measuring method should be agreed between supplier and purchaser. 5.3 Surface and internal quality To be suitable for rolling, after scalping or not as required, and subsequent proce
32、ssing, rolling ingots shall: a) have low level of casting surface defects, protruding metal, handling marks, oil, dirt and corrosion; b) have low level of inclusions, porosity, shrinkage cavities and cracks; c) have a suitable metallurgical structure (e.g. grain size, shell zone depth, fir-tree stru
33、cture). The level of quality should be agreed between purchaser and supplier. 5.4 Tolerances on dimensions 5.4.1 Cross-section The shape of the cross-section is left to the discretion of the purchaser, who shall give the supplier a dimensional drawing. 5.4.2 Thickness The thickness is measured on bo
34、th sides of the ingot at a distance of 100 mm from the edges. The tolerance on the thickness thus measured is 5 mm excluding (see Figure 1): a) a distance from the bottom butt of the unsawn rolling ingot of 80 % of the nominal thickness (distance measured before sawing, if any); NOTE For ingots more
35、 than 2 m wide, the distance is equal to the thickness. b) a distance from the bottom end of the sawn rolling ingot of 50 % of the nominal thickness. The tolerance on thickness in the zones defined above and measured at the centre of the cross-section is: c) 4 % of the nominal thickness for sawn ing
36、ots; d) to be agreed between the purchaser and the supplier for unsawn ingots. Other tolerances and measuring positions can be specified between the supplier and the purchaser. The difference between the thinnest and the thickest parts of the sawn ingot measured anywhere on the ingot at a distance g
37、reater than 100 mm from the edges shall not exceed 5 % of the nominal thickness. BS EN 487:2009EN 487:2009 (E) 7 a) Unsawn rolling ingot b) Sawn rolling ingot Key t nominal thickness NOTE The hatching corresponds to the zone in which thickness, width and deflections are measured. Figure 1 Rolling in
38、got type 5.4.3 Width The width is measured overall. The tolerance on width is 100+mm excluding a distance from the bottom butt of the rolling ingot of 80 % of the nominal thickness (ingot with unsawn butt) or 50 % of the nominal thickness (ingot with sawn butt) (see Figure 1). Other tolerances may b
39、e agreed between the purchaser and the supplier as required. 5.4.4 Length The length is measured overall. The tolerance on length is: a) 25 mm for sawn ingots; b) 50 mm for unsawn ingots; unless otherwise stated in the ordering information. 5.5 Tolerances of form 5.5.1 Lateral deflection The lateral
40、 deflection is the deflection measured along an edge in the casting direction, at the middle of the edge. The maximum permissible deflection on the length of the rolling ingot is 6 mm (see Figure 2). 5.5.2 Longitudinal deflection The longitudinal deflection is the deflection measured along a rolling
41、 face in the casting direction, at 100 mm from one corner. BS EN 487:2009EN 487:2009 (E) 8 The maximum permissible deflection on the length of the ingot is 6 mm (see Figure 2). 5.5.3 Diagonal deflection The diagonal deflection is the deflection measured along a diagonal line of a rolling face. It qu
42、alifies the twist of the rolling ingot. The maximum permissible deflection is 6 mm (see Figure 2). 5.5.4 Transverse deflection (concavity and convexity) The transverse deflection is measured on a rolling face in the direction perpendicular to the casting direction. It measures the concavity or conve
43、xity of the ingot. The maximum permissible transverse deflection is 3 mm (see Figure 2). If the rolling ingot is not scalped before rolling, the maximum permissible transverse deflection is to be agreed between the purchaser and the supplier. Key A lateral deflection B longitudinal deflection C tran
44、sverse deflection D diagonal deflection NOTE The lateral, longitudinal, diagonal and transverse deflections are measured on the length of the product excluding the bottom butt zone corresponding to a length equal to 80 % of the nominal thickness (unsawn butt) or 50 % of the nominal thickness (sawn b
45、utt) (see Figure 1). Figure 2 Deflection type BS EN 487:2009EN 487:2009 (E) 9 5.5.5 Squareness The cuts shall be at 90 1 from any generating line of the rolling ingot (casting axis). 5.6 Sawing 5.6.1 General The rolling ingots can be: a) as cast if the top and bottom butts do not have to be removed
46、as described below; or b) sawn. Sawing can be performed at the top and/or bottom butt. 5.6.2 Top butt sawing Top butt sawing shall be sufficient to remove shrink cavity and any defective metal. 5.6.3 Bottom butt sawing Bottom butt sawing shall give a rolling ingot within flatness tolerances and remo
47、ve defective metal. 5.6.4 Sawing code Table 1 gives the sawing code as a function of the type of sawing. Table 1 Sawing code function of sawing type Top butt sawing Bottom butt sawing Code ano no NSyes no TSno yes BS yes yes DSaNS stands for not sawn. TS stands for top sawn. BS stands for bottom saw
48、n. DS stands for double sawn (top and bottom). 5.7 Scalping Scalping parameters and special dimensional requirements for scalped ingots shall be agreed between the supplier and purchaser. They shall be covered under the additional requirements in the ordering information. 6 Test procedures 6.1 Analy
49、sis of chemical composition The analytical samples shall be taken at the discretion of the manufacturer who shall use methods accepted at European level, EN 14242 and EN 14726, or at International level. BS EN 487:2009EN 487:2009 (E) 10 The analytical samples shall be taken during the cast, from the metal distribution system, after the grain refiner addition (if any). The analytical samples shall be suitably machined and, when analysed by emission spectrometry, shall be subject to at least two determinations. The sample result is th
