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1、BRITISH STANDARD BS EN 1981:2003 Copper and copper alloys Master alloys The European Standard EN 1981:2003 has the status of a British Standard ICS 77.120.30 ? Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 05:10:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 1981:2003 This British Stan
2、dard was published under the authority of the Standards Policy and Strategy Committee on 20 February 2003 BSI 20 February 2003 ISBN 0 580 41283 0 National foreword This British Standard is the official English language version of EN 1981:2003. It supersedes BS EN 1981:1998 which is withdrawn. The UK
3、 participation in its preparation was entrusted by Technical Committee NFE/34, Copper and copper alloys, to Subcommittee NFE/34/2, Copper and copper alloy ingots and castings, which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on request to its
4、secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic C
5、atalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understa
6、nd the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a
7、 front cover, an inside front cover, the EN title page, pages 2 to 14, an inside back cover and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments Licensed Copy: sheffieldun sheffieldu
8、n, na, Mon Oct 30 05:10:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1981 February 2003 ICS 77.120.30Supersedes EN 1981:1998 English version Copper and copper alloys - Master alloys Cuivre et alliages de cuivre - Alliages-mresKupfer und Kupferleg
9、ierungen - Vorlegierungen This European Standard was approved by CEN on 28 November 2002. 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 li
10、sts and bibliographical references concerning such national standards may be obtained on application to the 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 translation under the respon
11、sibility of a CEN member into its own language and notified to the Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembour
12、g, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2003 CENAll rights of exploitation in any form
13、 and by any means reserved worldwide for CEN national Members. Ref. No. EN 1981:2003 E Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 05:10:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 1981:2003 (E) 2 Contents page Foreword3 Introduction.4 1Scope 5 2Normative references 5 3Terms and defi
14、nitions5 4Designations.5 4.1Material5 4.2Product6 5Ordering information.6 6Requirements.7 6.1Composition.7 6.2Product form.7 6.3Physical condition .7 7Sampling.8 7.1General8 7.2Cast analysis8 7.3Cases of dispute 8 8Methods of analysis.8 8.1Routine cast analysis 8 8.2Determination of chromium(III)-ox
15、ide in alloy CuCr10 (CM202E).8 8.3Cases of dispute 8 8.4Rounding of results.8 9Declaration of conformity and inspection documentation9 9.1Declaration of conformity .9 9.2Inspection documentation9 10Marking, labelling, packaging.9 Annex A (normative) Method for determination of chromium(III)-oxide in
16、 alloy CuCr10 (CM202E) .14 Bibliography15 Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 05:10:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 1981:2003 (E) 3 Foreword This document (EN 1981:2003) has been prepared by Technical Committee CEN/TC 133 “Copper and copperal- loys“, the secretari
17、at of which is held by DIN. 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 August 2003, and conflicting national standards shall be withdrawn at the latest by August 2003. This document supersede
18、s EN 1981:1998. In comparison with the first edition of EN 1981:1998, the following significant technical changes were made: a) Subclause 5 h) added; b) Compositions of the materials in Table 1 partially amended; c) CuMn20 (CM208E) and CuTi28 (CM235E) deleted; d) CuCo10 (CM237E), CuLi2 (CM123C), CuM
19、g10 (CM238E), CuNi50 (CM239E), CuSi30(A) (CM240E), CuSi30(B) (CM241E), CuTi30 (CM244E), CuZr50(B) (CM242E), CuZr50(C) (CM243E) added. Annex A is normative. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following coun- tries are bound to implement this
20、 European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and the United Kingdom. Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 05:
21、10:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 1981:2003 (E) 4 Introduction This European Standard has been prepared at the suggestion of the manufacturers of cast and wrought copper alloys, by representatives of the producers and users of master alloys. There is, at present, no similar interna
22、tional standard for copper-based master alloys. In several cases more than one grade of a particular master alloy is specified, having differing impurity limits, to satisfy the requirements of various end products. Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 05:10:39 GMT+00:00 2006, Uncon
23、trolled Copy, (c) BSI EN 1981:2003 (E) 5 1 Scope This European Standard specifies the compositions of copper-based master alloys intended for the manufacture, deoxidation, or desulfurization of cast or wrought alloys, especially those based on copper, supplied in the form of ingots, notched bar, not
24、ched slab (waffle plate), granules or broken pieces. A procedure is included for sampling the master alloys for analysis for verification of conformity to the composition requirements. A method for the determination of chromium(III)-oxide in chromium-copper master alloy is given in annex A. 2 Normat
25、ive 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 a
26、ny 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 (including amendments). EN 1655, Copper and copper alloys Declarations of conformity. EN 10204, Metallic pr
27、oducts Types of inspection documents. NOTEInformative references to documents used in the preparation of this standard, and cited at the appropriate places in the text, are listed in the bibliography. 3 Terms and definitions For the purposes of this standard, the following terms and definitions appl
28、y: 3.1 master alloy alloy intended to add one or more elements to a melt 3.2 cast product of one crucible, or one furnace, or one melt 3.3 batch portion of master alloy taken from one cast 3.4 consignment collection of products issued or received as one delivery, consisting of one or more batches of
29、 one master alloy 4 Designations 4.1 Material 4.1.1 General The material is designated either by symbol or number (see Table 1). Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 05:10:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 1981:2003 (E) 6 4.1.2 Symbol The material symbol designation
30、is based on the designation system given in ISO 1190-1. NOTEAlthough material symbol designations used in this standard might be the same as those in other standards using the designation system given in ISO 1190-1, the detailed composition requirements are not necessarily the same. 4.1.3 Number The
31、 material number designation is in accordance with the system given in EN 1412. 4.2 Product The product designation provides a standardised pattern of designation from which a rapid and unequivocal description of a product is conveyed in communication. It provides mutual comprehension at the interna
32、tional level with regard to products which meet the requirements of the relevant European Standard. The product designation is no substitute for the full content of the standard. The product designation for products to this standard shall consist of: denomination (Copper master alloy); number of thi
33、s European Standard (EN 1981); material designation, either symbol, or number (see Table 1); material form (the following designations shall be used as appropriate: ING for ingots, NOB for notched bars, NOS for notched slabs, GRN for granules and BPS for broken pieces) (see 6.2). The derivation of a
34、 product designation is shown in the following example. EXAMPLECopper master alloy conforming to this standard, in material designated either CuP15(B) or CM218E, in the form of granules, shall be designated as follows: Copper master alloy EN 1981 CuP15(B) GRN or Copper master alloy EN 1981 CM218E GR
35、N Denomination Number of this European Standard Material designation Material form 5 Ordering information In order to facilitate the enquiry, order and confirmation of order procedures between the purchaser and the supplier, the purchaser shall state on his enquiry and order the following informatio
36、n: a) quantity of product required (mass); b) denomination (Copper master alloy); c) number of this European Standard (EN 1981); d) material designation (see Table 1); Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 05:10:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 1981:2003 (E) 7 e) mat
37、erial form (see 6.2). NOTEIt is recommended that the product designation, as described in 4.2, is used for items b) to e). In addition, the purchaser shall also state on the enquiry and order any of the following, if required: f) whether a declaration of conformity is required (see 9.1); g) whether
38、an inspection document is required, and if so, which type (see 9.2); h) whether casts in a consignment shall be kept separate (see 10). EXAMPLEOrdering details for 500 kg of copper master alloy conforming to EN 1981, 15 % phosphorus designated either CuP15(B) or CM218E, in granular form, with declar
39、ation of conformity: 500 kg Copper master alloy EN 1981 CuP15(B) GRN with declaration of conformity or 500 kg Copper master alloy EN 1981 CM218E GRN with declaration of conformity 6 Requirements 6.1 Composition The composition shall conform to the requirements for the appropriate material given in T
40、able 1. 6.2 Product form The master alloy shall be in one of the following forms, as requested by the purchaser see 5 e): ingot; notched bar; notched slab (waffle plate); granules; or broken pieces. The design of the ingot, notched bar, or notched slab shall be at the discretion of the supplier, unl
41、ess a specific design is requested by the purchaser. 6.3 Physical condition The products shall be supplied free from dirt or dross and shall contain no extraneous material detrimental to their metallurgical quality. Broken pieces shall be reasonably free from fine metallic particles. Licensed Copy:
42、sheffieldun sheffieldun, na, Mon Oct 30 05:10:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 1981:2003 (E) 8 7 Sampling 7.1 General When required (e.g., if necessary in accordance with specified procedures of a suppliers quality system, or when the purchaser requests inspection documents with test
43、 results, or for use in cases of dispute), an inspection lot shall be sampled in accordance with 7.2 or 7.3. 7.2 Cast analysis For routine control purposes a sample representative of each cast shall be taken from the furnace, or crucible, during the process of casting, and poured into a clean perman
44、ent mould of dimensions appropriate to the chosen method of analysis. 7.3 Cases of dispute In cases of dispute concerning the composition of a master alloy in a consignment, the method of sampling shall be agreed between the disputing parties. 8 Methods of analysis 8.1 Routine cast analysis The rout
45、ine methods of analysis carried out on the sample obtained in accordance with 7.2, to verify conformity of the cast of master alloy to this standard, shall be at the discretion of the supplier. 8.2 Determination of chromium(III)-oxide in alloy CuCr10 (CM202E) For alloy CuCr10 (CM202E), the method re
46、commended for the determination of Cr2O3 is given in annex A. NOTEA qualitative assessment can be made by examining a polished microsection, under polarized light, at 250 magni- fication. 8.3 Cases of dispute In cases of dispute concerning the results of analysis of a master alloy, the procedure sha
47、ll be agreed between the disputing parties. 8.4 Rounding of results For the purpose of determining conformity to the compositional limits specified in this standard, the result obtained from analysis shall be rounded in accordance with the following procedure, which is based upon the guidance given
48、in annex B of ISO 31-0:1992. It shall be rounded in one step to the same number of figures used to express the specified limit in Table 1. Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 05:10:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 1981:2003 (E) 9 The following rules shall be used f
49、or rounding: a) if the figure immediately after the last figure to be retained is less than 5, the last figure to be retained shall be kept unchanged; b) if the figure immediately after the last figure to be retained is equal to or greater than 5, the last figure to be retained shall be increased by one. 9 Declaration of conformity and inspection documentation 9.1 Declaration of conformity When requested by the purchaser see 5 f) and agreed with the suppl
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