1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationCopper and copper alloys Cast unwrought copper productsBS EN 1976:2012National forewordThis British Standard is the UK implementation of EN 1976:2012. It supersedes BS EN 1976:19
2、98, which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee NFE/34, Copper and copper alloys.A list of organizations represented on this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 the necessary provis
3、ions of a contract. Users are responsible for its correct application. The British Standards Institution 2012.Published by BSI Standards Limited 2012.ISBN 978 0 580 73044 3 ICS 77.150.30Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was publish
4、ed under the authority of the Standards Policy and Strategy Committee on 30 November 2012.Amendments issued since publicationAmd. No. Date Text affectedBRITISH STANDARDBS EN 1976:2012EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1976 October 2012 ICS 77.150.30 Supersedes EN 1976:1998English V
5、ersion Copper and copper alloys - Cast unwrought copper products Cuivre et alliages de cuivre - Formes brutes de coule en cuivre Kupfer und Kupferlegierungen - Gegossene Rohformen aus Kupfer This European Standard was approved by CEN on 18 August 2012. CEN members are bound to comply with the CEN/CE
6、NELEC 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 CEN-CENELEC Management Centre
7、 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 CEN-CENELEC Management Centre has the same status as the o
8、fficial versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlan
9、ds, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2012 CEN All rights of exploitat
10、ion in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1976:2012: EBS EN 1976:2012EN 1976:2012 (E) 2 Contents Page Foreword 31 Scope 42 Normative references 43 Terms and definitions .44 Designations 54.1 Material .54.2 Product .55 Ordering information .66 Requireme
11、nts .76.1 Composition .76.2 Electrical properties 76.3 Hydrogen embrittlement 126.4 Scale adhesion 136.5 Dimensions, mass and tolerances 136.6 Physical condition of refinery shapes 157 Sampling 167.1 Arrangement of lots for sampling purposes 167.2 Inspection lots for analysis and physical testing 16
12、8 Test methods . 178.1 Analysis . 178.2 Physical tests 178.3 Rounding of results 189 Declaration of conformity and inspection documentation . 189.1 Declaration of conformity 189.2 Inspection documentation . 1810 Marking 18Annex A (informative) Available products and grades . 19Annex B (informative)
13、Information on electrical resistivity and conductivity relationships 20Bibliography . 22BS EN 1976:2012EN 1976:2012 (E) 3 Foreword This document (EN 1976:2012) has been prepared by Technical Committee CEN/TC 133 “Copper and copper alloys”, the secretariat of which is held by DIN. This European Stand
14、ard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by April 2013, and conflicting national standards shall be withdrawn at the latest by April 2013. Attention is drawn to the possibility that some of the elements of this
15、document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 1976:1998. This is one of a series of European Standards for products manufactured from refined copper grades. Other products are
16、specified as follows: EN 1977, Copper and copper alloys Copper drawing stock (wire rod); EN 1978, Copper and copper alloys Copper cathodes. In comparison with the first edition of EN 1976:1998, the following significant changes were made: a) Clause 3, Terms and definitions for the various refinery s
17、hapes have been added from ISO 197-2; b) Table 2, Cu-FRHC, Other elements content has been modified and a new footnote “d“ has been added. Within its programme of work, Technical Committee CEN/TC 133 requested CEN/TC 133/WG 1 “Unwrought copper products“ to revise the following standard: EN 1976:1998
18、, Copper and copper alloys Cast unwrought copper products. According to the CEN/CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
19、Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 1976:2012EN 1976:2012
20、(E) 4 1 Scope This European Standard specifies the composition and physical properties of cast unwrought copper products (refinery shapes) in thirteen grades of copper and nine silver-bearing copper grades. The refinery shapes included are horizontally, vertically and continuously cast wire bars, ca
21、kes, billets and ingots. Wire bars, cakes and billets are intended for fabricating into wrought products; ingots are intended for alloying in wrought and cast copper alloys. A table indicating the refinery shapes in which each copper grade is normally available is given in Annex A. Annex B gives inf
22、ormation on the relationships between electrical resistivity and conductivity of copper. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. F
23、or undated references, the latest edition of the referenced document (including any amendments) applies. EN 1655, Copper and copper alloys Declarations of conformity EN 10204, Metallic products Types of inspection documents EN ISO 2626, Copper Hydrogen embrittlement test (ISO 2626) IEC 60468, Method
24、 of measurement of resistivity of metallic materials ISO 4746, Oxygen-free copper Scale adhesion test 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 unwrought product refinery shape general term for unwrought products obtained by refining or
25、 melting and casting processes, intended for further processing EXAMPLE Examples of unwrought products are cathodes, wire bars, cakes, billets, ingots. SOURCE: ISO 197-2:1983, 2.1 3.2 wire bar cast unwrought product normally of approximately square cross-section, with or without tapered ends, princi
26、pally used for rolling into drawing stock or flat products for subsequent processing into wire, strip or profile SOURCE: ISO 197-2:1983, 2.3 3.3 cake cast unwrought product of rectangular cross-section, generally used for rolling into plate, sheet, strip or profiles SOURCE: ISO 197-2:1983, 2.4 BS EN
27、 1976:2012EN 1976:2012 (E) 5 3.4 billet cast unwrought product of circular cross-section used for the production of tube, rod, bar, profiles or forgings SOURCE: ISO 197-2:1983, 2.5 3.5 ingot ingot bar cast unwrought product in a form suitable only for remelting primarily for the production of copper
28、 and copper alloys SOURCE: ISO 197-2:1983, 2.6 4 Designations 4.1 Material 4.1.1 General The material is designated either by symbol or number (see Tables 1 to 4). 4.1.2 Symbol The material symbol designation is based on the designation system given in ISO 1190-1. NOTE Although material symbol desig
29、nations 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 material number designation is in accordance with the system given in EN 1412. 4.2 Produc
30、t The product designation provides a standardized pattern of designation from which a rapid and unequivocal description of a product is conveyed in communication. It provides mutual comprehension at the international level with regard to products which meet the requirements of the relevant European
31、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 (Billet, Wire bar, Cake or Ingot); number of this European Standard (EN 1976); material designation, either symbol or number (
32、see Tables 1 to 4); cross-sectional shape (the following designations shall be used as appropriate: RND for round, SQR for square, RCT for rectangular); nominal dimensions (diameter, or width x thickness, and length); nominal unit mass, (if appropriate). BS EN 1976:2012EN 1976:2012 (E) 6 The derivat
33、ion of a product designation is shown in the following example. EXAMPLE Billets conforming to this standard, in material designated either Cu-ETP or CR004A, round cross-section, nominal diameter 250 mm nominal length 1 000 mm, are designated as follows: Billet EN 1976 Cu-ETP RND 250 1 000 or Billet
34、EN 1976 CR004A RND 250 1 000 Denomination Number of this European Standard Material designation Cross-sectional shape and nominal dimensions in millimetres 5 Ordering information In order to facilitate the enquiry, order and confirmation of order procedures between the purchaser and the supplier, th
35、e purchaser shall state on his enquiry and order the following information: a) quantity of product required (mass); b) denomination (Billet, Wire bar, Cake or Ingot); c) number of this European Standard (EN 1976); d) material designation (see Tables 1 to 4); e) cross-sectional shape required; f) nom
36、inal dimensions (i.e. diameter, or width thickness, and length) and nominal mass, where appro-priate (see Table 7 for wire bar dimensions). It is recommended that the product designation, as described in 4.2, is used for items b) to f). In addition, the purchaser shall also state on the enquiry and
37、order any of the following, if required: g) for Cu-ETP and Cu-FRHC only: if oxygen content is higher than 0,040 % (see Table 2, Footnote b); h) for Cu-FRHC only: if the total impurities content is higher than 0,06 % (see Table 2, Footnote d); i) for ingots only: whether they are to be marked with a
38、furnace charge mark; j) the tests, if any, which the purchaser requires to be carried out by the manufacturer on the product, selected from the tests appropriate to each copper grade given in Table 6; k) whether a declaration of conformity is required (see 9.1); l) whether an inspection document is
39、required, and if so, which type (see 9.2). BS EN 1976:2012EN 1976:2012 (E) 7 6 Requirements 6.1 Composition The composition of the refinery shapes shall conform to the requirements for the appropriate grade given in Tables 1 to 4. 6.2 Electrical properties The maximum mass resistivity at 20 C of eac
40、h refinery shape shall conform to the appropriate requirements given in Table 5. The test shall be carried out in accordance with 8.2. BS EN 1976:2012EN 1976:2012 (E) 8 Table 1 Composition of unalloyed copper grades made from Cu-CATH-1 (CR001A) Material designation Composition % (mass fraction) Ele-
41、mentCu Ag As Bi Cd Co Cr Fe Mn Ni O P Pb S Sb Se Si Sn Te Zn Elements listed in this table other than copper Symbol Number total excl.Cu-ETP1 CR003Amin. max. 0,002 5 0,000 5a0,000 20baca0,001 0cac0,040 a0,000 5 0,001 5 0,000 4a0,000 20bcc0,000 20bc0,006 5 O Cu-OF1 CR007Amin. max. 0,002 5 0,000 5a0,0
42、00 20baca0,001 0cacda0,000 5 0,001 5 0,000 4a0,000 20bcc0,000 20bc0,006 5 O Cu-OFE CR009Amin. 99,99 max. 0,002 5 0,000 5 0,000 20 0,000 1 0,001 0 0,000 5 0,001 0 d0,000 3 0,000 5 0,001 5 0,000 4 0,000 20 0,000 2 0,000 20 0,000 1 Cu-PHCE CR022Amin. 99,99 0,001 max. 0,002 5 0,000 5 0,000 20 0,000 1 0,
43、001 0 0,000 5 0,001 0 d0,006 0,000 5 0,001 5 0,000 4 0,000 20 0,000 2 0,000 20 0,000 1 a(As + Cd + Cr + Mn + P + Sb) maximum 0,001 5 %. b(Bi + Se + Te) maximum 0,000 3 %, of which (Se + Te) maximum 0,000 30 %. c(Co + Fe + Ni + Si + Sn + Zn) maximum 0,002 0 %. dThe oxygen content shall be controlled
44、by the manufacturer so that the material conforms to the hydrogen embrittlement requirements. BS EN 1976:2012EN 1976:2012 (E) 9 Table 2 Composition of unalloyed copper grades, other than those made from Cu-CATH-1 (CR001A) Material designation Composition % (mass fraction) Element CuaBi O Pb Other el
45、ements (see note) Symbol Number total excluding Cu-ETP CR004A min. 99,90 Ag, O max. 0,000 5 0,040b 0,005 0,03 Cu-FRHC CR005A min. 99,90 Ag, O max. 0,040b 0,06dCu-FRTP CR006A min. 99,90 Ag, Ni, O max. 0,100 0,05 Cu-OF CR008A min. 99,95 Ag max. 0,000 5 c0,005 0,03 NOTE The total of other elements (tha
46、n copper) is defined as the sum of Ag, As, Bi, Cd, Co, Cr, Fe, Mn, Ni, O, P, Pb, S, Sb, Se, Si, Sn, Te and Zn, subject to the exclusion of any individual elements indicated.aIncluding silver, up to a maximum of 0,015 %. bOxygen content up to 0,060 % is permitted, subject to agreement between the pur
47、chaser and the supplier.cThe oxygen content shall be controlled by the manufacturer so that the material conforms to the hydrogen embrittlement requirements. dHigher total impurities content is permitted, subject to agreement between the purchaser and the supplier. BS EN 1976:2012EN 1976:2012 (E) 10
48、 Table 3 Composition of phosphorus-containing copper grades Material designation Composition % (mass fraction) Element Cua Bi P Pb Other elements (see note) Symbol Number total excluding Cu-PHC CR020A min. 99,95 0,001 Ag, P max. 0,000 5 0,006 0,005 0,03b Cu-HCP CR021A min. 99,95 0,002 Ag, P max. 0,000 5 0,007 0,005 0,03b Cu-DLP CR023A min. 99,90 0,005 Ag, Ni, P max. 0,000 5 0,013 0,005 0,03 Cu-DHP C
