1、Aluminium master alloys produced by melting English version of DIN EN 575 Specifications ICs 77.120.10 Descriptors: Aluminium, master alloys, specifications. DIN EN 575 Supersedes DIN 1725-3, June 1973 edition. Aluminium und Aluminiumlegierungen; Vorlegierungen, durch Erschmelzen her- gestellt; Spez
2、ifikationen European Standard EN 575: 1995 has the status of a DIN Standard. A comma is used as the decimal marker. National foreword This standard has been prepared by CENKC 132. The responsible German body involved in its preparation was the Normenausschu Nichteisenmetalle (Nonferrous Metals Stand
3、ards Committee), Technical Committee Httenaluminium. Amendments DIN 1725-3, June 1973 edition, has been superseded by the specifications of EN 575. Previous editions DIN 1725: 1942-1 1 DIN 1725-3: 1943-07, 1945-01,1973-06. EN comprises 11 pages. 30th Verlag GmbH, Berlin, has the exclusive right of s
4、ale for German Standards (DIN-Normen). DIN EN 575 Engl. Price group 03.96 Sales Na. 11 O8 EUROPEAN STANDARD NORME EUROPENNE EUROPkkISCHE NORM EN 575 July 1995 ICs 77.120.10 Descriptors: Aluminium, master alloys, specifications. English version Aluminium and aluminium alloys Master alloys produced by
5、 melting Specifications Aluminium et alliages daluminium; alliages mres obtenus par fusion; spcifications Aluminium und Aluminiumlegierungen; Vorlegierungen, durch Erschmelzen herge- stellt; Spezifikationen This European Standard was approved by CEN on 1995-06-03. CEN members are bound to comply wit
6、h the CENKENELEC 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 Secretaria
7、t 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 Central Secretariat has the same status as the official v
8、ersions. 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 Comit Europen de Normal
9、isation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-IO50 Brussels O 1995. Copyright reserved to all CEN members. Ref. No. EN 575:1995 E Page 2 EN 575:1995 Contents Page Foreword . 2 1 Scope . 3 2 Normative references . . . . . . . . . . . . . . . . 3 3 Definitions . 3 4
10、 Orders or tenders . 4 5 Requirements 4 6 Product inspection and testing methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 7 Marking of products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 8 Packaging . 7 9 Deliv
11、ery documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 10 Complaints 8 Table 1 : Master alloys - Chemical composition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Foreword This European Standard has been prepared by CEN/TC 132
12、 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, and conflicting national standards withdrawn, by January 1996 at the latest. In accordanc
13、e with the CENKENELEC 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 and United Kingdom. Page 3 EN
14、 575 : 1995 1 scope This European Standard specifies the requirements for grades of master alloys produced by melting and intended for addition to a melt to adjust composition and/or to control impurities and/or to control the as-cast structure. It specifies the classification and designation applic
15、able to these grades, the conditions in which they are produced, their properties and the marks by which they are identified. 2 Normative references This European Standard incorporates by dated and undated reference, provisions from other publications. These nonnative references are cited at the app
16、ropriate places in the text and the publications are listed hereater. 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 publ
17、ication referred to applies. prEN 1780-1 Aluminium and aluminium alloys - Designation of unalloyed and alloyed aluminium ingots for remelting, master alloys and castings - Part 1 : Numerical designation system prEN 1780-2 prEN 1780-3 Aluminium and aluminium alloys - Designation of unalloyed and ailo
18、yed aluminium ingots for remelting, master alloys and castings - Part 2 : Chemical symbol based designation system Aluminium and aluminium alloys - Designation of unalloyed and alloyed aluminium ingots for remelting, master alloys and castings - Part 3 : Writing rules for chemical composition EN IS0
19、 9000-1 Quality management and quality assurance standards - Part 1 : Guidelines for selection and use (IS0 9000-1 :1994) 3 Definitions For the purposes of this standard, the following definitions apply: 3.1 element predominating by mass) and other elements such as alloying elements and impurities.
20、alloy : Metallic substance consisting of a mixture of the basic metallic element (the 3.2 contained by, a basic metal and the amount of which is controlled within specific upper and lower limits for the purpose of giving that metal certain special properties. alloying element : Metallic or non-metal
21、lic element intentionally added to, or naturally Page 4 EN 575 : 1995 3.3 impurity : Metallic or non-metallic element present but which is not intentionally added to a metal and for which no lower limit is specified. 3.4 master alloy : Alloy intended only for addition to a melt to adjust composition
22、 and/or to control impurities and/or to control the as-cast structure. Some master alloys can contain more than 50 % of the main alloying element. 4 Orders or tenders The order or tender shall define the product required and shall contain the following information : a) designation of the master allo
23、y according to this European Standard (or the customer code after agreement between supplier and purchaser); b) form of the product; c) quantity : - mass (in metric tonnes); - quantity tolerances if required; d) any requirements for certificates of conformity, test andlor analysis reports or inspect
24、ion certificates; e) all exceptions to this standard which have been agreed between supplier and purchaser. 5 Requirements 5.1 Production and manufacturing processes Unless otherwise specified in the order, the production and manufacturing processes shall be left to the discretion of the producer. T
25、he master alloy shall be in a condition suitable for use at normal process temperatures. Unless it is explicitly stated in the order, no obligation shall be placed on the producer to use the same processes for subsequent and similar orders. The purchaser shall be notified of significant changes in t
26、he production and manufacturing process which can influence the product quality. Page 5 EN 575 : 1995 5.2 Quality control The supplier shall be responsible for caving out all inspection and tests required by the relevant European Standard and/or the particular specification, prior to shipment of the
27、 product. If the purchaser wishes to inspect the product at the suppliers works, he shall stipulate this at the time of placing the order. 5.3 Chemical composition Each grade of master alloys shall be in accordance with the designations and chemical composition given in table 1. The composition show
28、n in this table is given in mass percent maximum and, if applicable, in mass percent minimum. For the main alloying elements, the supplier shall produce a chemical content as close as possible to the middle of the range. The writing rules for designations and chemical compositions, as given in prEN
29、1180-1 , prEN 1780-2 and prEN 1780-3, shall be applied. 5.4 Freedom from defects The products shall be reasonably free from dross, corrosion, scale or salt inclusions, grease or any other foreign bodies, including paint apart from that which is approved for marking purposes, to a degree which does n
30、ot affect melt quality and/or recovery. The products shall be inspected visually. The products may have shrinkage holes or cracks which may retain water. They shall therefore be thoroughly dried and preheated before charging to a furnace to avoid the risk Of a violent explosion. 5.5 Form and dimensi
31、on Master alloys can be supplied in several forms including ingots, splatters, granules and rod, e.g. : - piglets up to 1 kg; - notched bar or waffie plates up to 15 kg; - splatters with typical thickness 1 mm to 8 mm; - granules up to 10 mm; - rod either in layer wound coils or in cut lengths nomin
32、al rod diameter up to 10 mm. Page 6 EN 575 : 1995 The tolerances of the unit masses, the dimensions and the dimensional tolerances of the products shall be defined by agreement between supplier and purchaser at the time of ordering. 5.6 Health and safety The supplier shall be responsible for supplyi
33、ng the necessary information on health and safety for each product. 6 Product inspection and testing methods 6.1 General Sampling procedures and analytical tests shall be camed out in accordance with quality assurance procedures (see EN IS0 9000-1). The results shall be traceable to national or inte
34、rnational standard reference materials. The capability of the analytical procedures shall be verified. 6.2 Sampling - Samples The melt shall be clearly identified with a traceable number. The shape of the samples and the sampling conditions for chemical analysis shall be so designed that they are re
35、presentative of the melt being cast. Each sample shall be taken from the liquid metal after any treatment from either the furnace, the liquid stream, or shall be taken from a cast ingot or length of rod. NOTE: Due to the effects of segregation, there are particular difficulties in sampling of cast i
36、ngots. The supplier shall be able to.demonstrate the validity of the whole test procedure, including sampling, sample preparation and measurement. 6.3 Analysis of chemical composition Analysis is normally made for elements for which specific limits are shown in table 1. For purposes of determining c
37、onformance to these limits the analysis values shall be rounded off to the nearest unit in the right hand place of figures as shown in table 1. The analytical methods are at the discretion of the producer who shall use methods accepted at the European or International levels. Page 7 EN 575 : 1995 7
38、Marking of products 7.1 Identification Each bundle of ingots, drum or box of splatters, sticks, granules, pallet of coiled rods etc. shall be clearly marked with the following information : a) the producer identification; b) the designation of master alloy; c) the melt number), traceable to producti
39、on data; d) the mass of the bundle, drum, box, etc .; e) the colour code for the alloy. The method of marking is left to the discretion of the supplier, but it shall be indelible and shall not be a source of contamination. 7.2 Colour coding Each alloy shall have a unique colour code, shown in table
40、1. Each bundle of ingots, drum, box, etc. shall be marked with the appropriate colour(s). 8 Packaging Ingots shall be stacked in bundles with or without a pallet in such a manner as to give a secure package. Splatters, piglets and granules shall be supplied in drums, boxes, bags or big-bags. Coiled
41、rods shall be securely stacked on pallets. The packaging shall be sufficiently strong to be handled without breaking and be suitably weather-proofed for the type of transport employed. Any special requirements for packaging shall be agreed between supplier and purchaser 9 Delivery documents The deli
42、very documents shall accompany the delivery and include : a) the supplier identification; b) the order number; c) the designation and form of master alloy; Page 8 EN 575 : 1995 d) the melt number(s); e) the results of chemical analysis for all elements for which specific limits are shown in table 1,
43、 or other elements if specified in the order, f) the unit and total masses. 10 Complaints Chemical and physical defects can give rise to complaints if they affect the processing or the end use of the relevant finished product. The purchaser shall enable the supplier to check the validity of the comp
44、laint by providing one or more of the following: - a representative sample of the master alloy concerned and/or: - a specimen of the finished product, or an intermediate state, obtained from the defective master alloy, with all the details allowing identification, or; -justification of the defect in
45、 the ingot or in the finished product, or; - details of conditions of processing and inspection in the intermediate stages. In case of dispute concerning conformity with the requirements of the present standard or specification stated on the order, examinations and tests shall be performed by a referee laboratory chosen by mutual agreement between supplier and purchaser. The arbitrators decision shall be final. Page 9 EN 575:1995 a . z. a: o m m O c X E at 9 - O E E N L P x E Page 10 EN 575 : 1995 g. O /g q z z u W 2 z u a 8 i W f c O Page 11 EN 575 : 1995
