SIST EN 12166:2011
(Main)Copper and copper alloys - Wire for general purposes
Copper and copper alloys - Wire for general purposes
The document specifies the composition, property requirements and dimensional tolerances for copper and copper alloy wire intended for general purposes, spring and fastener manufacturing applications. The sampling procedures and the methods of test for verification of conformity to the requirements of the document are also specified.
Kupfer und Kupferlegierungen - Drähte zur allgemeinen Verwendung
Diese Europäische Norm legt die Zusammensetzung, die Anforderungen an die Eigenschaften und die Grenz-abmaße für durch Ziehen, Walzen oder Pressen endgefertigte Drähte aus Kupferlegierungen zur allgemeinen Verwendung und zur Herstellung von Federn und Verbindungselementen fest. Der Ablauf der Probenentnahme und die Prüfverfahren zur Feststellung der Übereinstimmung mit den Anforderungen dieser Europäischen Norm sind ebenfalls festgelegt.
Cuivre et alliages de cuivre - Fils pour usages généraux
La présente Norme européenne spécifie la composition, les caractéristiques et les tolérances dimensionnelles des fils en alliages de cuivre fabriqués par étirage, laminage ou filage, destinés à des usages généraux et à la fabrication de ressorts et d'éléments de fixation.
Les procédures d'échantillonnage et les méthodes d'essai pour la vérification de la conformité aux prescriptions de la présente Norme européenne sont également spécifiées.
Baker in bakrove zlitine - Žica za splošno uporabo
Dokument določa sestavo, zahteve za lastnosti in odstopke mer za palice iz bakra in bakrovih zlitin za splošno uporabo in aplikacije za izdelavo vzmeti in sponk. Določeni so tudi postopki vzorčenja in metode preskušanja za preverjanje skladnosti z zahtevami tega dokumenta.
General Information
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Baker in bakrove zlitine - Žica za splošno uporaboKupfer und Kupferlegierungen - Drähte zur allgemeinen VerwendungCuivre et alliages de cuivre - Fils pour usages générauxCopper and copper alloys - Wire for general purposes77.150.30Bakreni izdelkiCopper productsICS:Ta slovenski standard je istoveten z:EN 12166:2011SIST EN 12166:2011en,fr,de01-oktober-2011SIST EN 12166:2011SLOVENSKI
STANDARDSIST EN 12166:1999/AC:2004SIST EN 12166:19991DGRPHãþD
SIST EN 12166:2011
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 12166
June 2011 ICS 77.150.30 Supersedes EN 12166:1998English Version
Copper and copper alloys - Wire for general purposes
Cuivre et alliages de cuivre - Fils pour usages généraux
Kupfer und Kupferlegierungen - Drähte zur allgemeinen Verwendung This European Standard was approved by CEN on 14 April 2011.
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 lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC 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 responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, 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 Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12166:2011: ESIST EN 12166:2011
EN 12166:2011 (E) 2 Contents Page Foreword .4Introduction .61Scope .72Normative references .73Terms and definitions .74Designation .84.1Material .84.1.1General .84.1.2Symbol .84.1.3Number .84.2Material condition .84.3Product .85Ordering information .96Requirements . 116.1Composition . 116.2Mechanical properties . 116.3Grain size . 116.4Dimensions and tolerances . 116.4.1Diameter or width across-flats . 116.4.2Shape tolerances for round wire . 116.4.3Corner and edge geometry (wire with square and rectangular cross-section only) . 116.5Joins . 127Sampling . 127.1General . 127.2Analysis . 127.3Tensile, hardness and grain size tests . 128Test methods . 138.1Analysis . 138.2Tensile test . 138.3Hardness test . 138.4Estimation of average grain size . 138.5Retests . 148.6Rounding of results . 149Declaration of conformity and inspection documentation . 149.1Declaration of conformity . 149.2Inspection documentation . 1410Marking, packaging, labelling . 14Annex A (informative)
Position of wire cross-section within a coil, reel, spool or drum . 30Bibliography . 32 SIST EN 12166:2011
EN 12166:2011 (E) 3 Figures Figure 1 — Calculation of corner radii . 12 Figure A.1 — Illustration of position of wire cross-section within the coil (bunched wound or stagger/traverse wound) . 30 Figure A.2 — Illustration of position of wire cross-section within the reel/spool/drum (stagger/traverse wound) . 30 Figure A.3 — Illustration of position of wire cross-section within the coil (bunched wound or stagger/traverse wound) . 31 Figure A.4 — Illustration of position of wire cross-section within the reel/spool/drum (stagger/traverse wound) . 31
Tables Table 1 — Composition of low alloyed copper alloys . 15 Table 2 — Composition of copper-nickel-zinc alloys . 16 Table 3 — Composition of copper-tin alloys . 16 Table 4 — Composition of copper-zinc alloys. 17 Table 5 — Composition of copper-zinc-lead alloys . 18 Table 6 — Composition of complex copper-zinc alloys . 18 Table 7 — Mechanical properties of wire of low alloyed copper alloys . 19 Table 8 — Mechanical properties of wire of copper-nickel-zinc alloys . 21 Table 9 — Mechanical properties of wire of copper-tin alloys . 22 Table 10 — Mechanical properties of wire of copper-zinc alloys . 23 Table 11 — Mechanical properties of wire of copper-zinc-lead alloys . 25 Table 12 — Mechanical properties of wire of complex copper-zinc alloys . 26 Table 13 — Grain size designations . 26 Table 14 — Tolerances on diameter of round wire . 27 Table 15 — Tolerances on width across-flats of square or regular polygonal wire . 27 Table 16 — Tolerances on width and thickness of rectangular wire . 28 Table 17 — Corner radii for square or rectangular wire . 28 Table 18 — Sampling rate . 29
SIST EN 12166:2011
EN 12166:2011 (E) 4 Foreword This document (EN 12166:2011) has been prepared by Technical Committee CEN/TC 133 “Copper and copper alloys”, the secretariat 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 December 2011, and conflicting national standards shall be withdrawn at the latest by December 2011. Attention is drawn to the possibility that some of the elements of this 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 12166:1998. Within its programme of work, Technical Committee CEN/TC 133 requested CEN/TC 133/WG 4 "Extruded and drawn products, forgings and scrap" to revise the following standard: EN 12166, Copper and copper alloys — Wire for general purposes. This is one of a series of European Standards for the copper and copper alloy products rod, wire and profile. Other products are specified as follows: EN 12163, Copper and copper alloys — Rod for general purposes; EN 12164, Copper and copper alloys — Rod for free machining purposes; EN 12165, Copper and copper alloys — Wrought and unwrought forging stock; EN 12167, Copper and copper alloys — Profiles and bars for general purposes; EN 12168, Copper and copper alloys — Hollow rod for free machining purposes; EN 13347, Copper and copper alloys — Rod and wire for welding and braze welding; EN 13601, Copper and copper alloys — Copper rod, bar and wire for general electrical purposes; EN 13602, Copper and copper alloys — Drawn round copper wire for the manufacture of electrical conductors; EN 13605, Copper and copper alloys — Copper profiles and profiled wire for electrical purposes. In comparison with EN 12166:1998, the following significant technical changes were made: a) Removal of eight materials: 1) Cu-DHP (CW024A); 2) CuNi2Be (CW110C), CuSi1 (CW115C) and CuSi3Mn1 (CW116C); 3) CuSn5 (CW451K); 4) CuZn38Pb4 (CW609N); SIST EN 12166:2011
EN 12166:2011 (E) 5 5) CuZn19Sn (CW701R) and CuZn37Pb1Sn1 (CW714R); b) Addition of five new materials: 1) CuFe2P (CW107C) due to its importance for the connector industry; 2) CuSP (CW114C) as an alternative to CuTeP (CW118C); 3) CuZn40 (CW509L), CuZn42 (CW510L) due to market requirements on restriction of lead; 4) CuZn21Si3P (CW724R) due to market requirements on restriction of lead; c) Revision of the mechanical properties (Tables 7 to 12) to reflect market needs. In particular the 0,2 % proof strength and the elongation that were previously informative are now mandatory, since these are important figures for design purposes; d) Modification of the sampling rate (Table 18). According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. SIST EN 12166:2011
EN 12166:2011 (E) 6 Introduction The European Committee for Standardization (CEN) draws attention to the fact that it is claimed that compliance with this document may involve the use of a patent concerning the alloy CuZn21Si3P (CW724R) given in 6.1. CEN takes no position concerning the evidence, validity and scope of this patent right. The holder of this patent right has assured the CEN that he is willing to negotiate licenses under reasonable and non-discriminatory terms and conditions with applicants throughout the world. In this respect, the statement of the holder of this patent right is registered with CEN. Information may be obtained from: Wieland Werke AG Graf Arco Straße 36
D-89079 Ulm
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights other than those identified above. CEN shall not be held responsible for identifying any or all such patent rights. SIST EN 12166:2011
EN 12166:2011 (E) 7 1 Scope This European Standard specifies the composition, property requirements and dimensional tolerances for copper alloy wire, finally produced by drawing, rolling or extruding, intended for general purposes, spring and fastener manufacturing applications.
The sampling procedures and the methods of test for verification of conformity to the requirements of this European Standard are also specified. 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 1173, Copper and copper alloys — Material condition designation EN 1412, Copper and copper alloys — European numbering system EN 1655, Copper and copper alloys — Declarations of conformity EN 10204:2004, Metallic products — Types of inspection documents EN ISO 2624, Copper and copper alloys — Estimation of average grain size (ISO 2624:1990) EN ISO 6507-1, Metallic materials — Vickers hardness test — Part 1: Test method (ISO 6507-1:2005) EN ISO 6892-1, Metallic materials — Tensile testing — Part 1: Method of test at room temperature
(ISO 6892-1:2009) ISO 1190-1, Copper and copper alloys — Code of designation — Part 1: Designation of materials 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 wire wound product of uniform cross-section along its whole length NOTE Rectangles may have round or sharp corners. 3.2 deviation from circular form
difference between the maximum and the minimum diameters measured at any one cross-section of a round product [EN 12163:2011] SIST EN 12166:2011
EN 12166:2011 (E) 8 4 Designation 4.1 Material 4.1.1 General The material is designated either by symbol or number (see Tables 1 to 6). 4.1.2 Symbol The material symbol designation is based on the designation system given in ISO 1190-1. NOTE Although 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 material number designation is in accordance with the system given in EN 1412. 4.2 Material condition For the purposes of this standard, the following designations, which are in accordance with the system given in EN 1173, apply for the material condition: M Material condition for the product as manufactured, without specified mechanical properties; R. Material condition designated by the minimum value of tensile strength requirement for the product with mandatory tensile property requirements; H. Material condition designated by the minimum value of Vickers hardness requirement for the product with mandatory hardness requirements; S (suffix)
Material condition for a product which is stress relieved. G. Material condition designated by the mid-range value of grain size requirement for the product with mandatory grain size requirements (Table 13). NOTE The G. material condition is normally applicable only to round wires in the soft material condition made from alloys given in Tables 3, 4 and non-leaded alloys given in Table 2. Exact conversion between material conditions designated R., H. and G. is not possible. Except when the suffix S is used, material condition is designated by only one of the above designations. 4.3 Product 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 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 (Wire); number of this European Standard (EN 12166); SIST EN 12166:2011
EN 12166:2011 (E) 9 material designation, either symbol or number (see Tables 1 to 6); material condition designation (see 4.2 and Tables 7 to 13); cross-sectional shape (the following designations shall be used as appropriate: RND for round, SQR for square, RCT for rectangular, HEX for hexagonal, OCT for octagonal, PFL for profile); nominal cross-sectional dimension(s) (or the number of the profile or a fully dimensioned and toleranced drawing); tolerance class for round, square or polygonal wire, (see Tables 14 and 15); for square, rectangular or polygonal wire, the corner shape (the following designations shall be used as appropriate: SH for sharp, RD for rounded), (see Table 17). The derivation of a product designation is shown in EXAMPLE 1 and another typical product designation is shown in EXAMPLE 2. EXAMPLE 1 Wire conforming to this standard, in material designated either CuZn39Pb3 or CW614N, in material condition H115, rectangular, nominal cross-sectional dimensions 6,0 mm × 5,0 mm, with sharp corners, shall be designated as follows:
Wire EN 12166 — CuZn39Pb3 — H115 — RCT6,0 ×××× 5,0 — SH
or
Wire EN 12166 —
CW614N — H115 — RCT6,0 ×××× 5,0 — SH Denomination Number of this European Standard Material designation Material condition designation Cross-sectional shape and nominal dimensions in millimetres Corner designation EXAMPLE 2 Wire conforming to this standard, in material designated either CuZn39Pb3 or CW614N, in material condition R430, round, nominal diameter 6,0 mm, tolerance class B, shall be designated as follows:
Wire EN 12166 — CuZn39Pb3 — R430 — RND6,0B
or
Wire EN 12166 —
CW614N — R430 — RND6,0B 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 information: a) quantity of product required (mass); b) denomination (Wire); c) number of this European Standard (EN 12166); SIST EN 12166:2011
EN 12166:2011 (E) 10 d) material designation (see Tables 1 to 6); e) material condition designation (see 4.2 and Tables 7 to 13) if other than M; f) cross-sectional shape; g) nominal cross-sectional dimension(s) (diameter or width across-flats); h) for round, square and regular polygonal wire, the tolerance class required, unless the tolerance class is to be left to the discretion of the supplier (see Tables 14 and 15); for profiles, the tolerances required (or a drawing with dimensions and tolerances); i) for square or rectangular wire, whether 'sharp' or 'rounded' corners are required, unless the corner radii are to be left to the discretion of the supplier (see Table 17); NOTE It is recommended that the product designation, as described in 4.3, is used for items b) to i). In addition, the purchaser shall also state on the enquiry and order any of the following, if required: j) for profiles, if the shape is such that the position of the cross-section within the coil, reel, spool or drum is of importance to the purchaser, this should be stated on the drawing (see Annex A for illustration); k) for profiles, whether mechanical properties are required; if so, the method of test and the level of properties shall be agreed between the purchaser and the supplier; l) whether the products are to be supplied in a thermally stress relieved material condition; m) whether a declaration of conformity is required (see 9.1); n) whether an inspection document is required, and if so, which type (see 9.2); o) whether there are any special requirements for marking, labelling or packaging including, if necessary, any limitation on dimensions or mass of coils, spools, reels or drums (see Clause 10). EXAMPLE 1 Ordering details for 1 000 kg wire for general purposes conforming to EN 12166, in material designated either CuZn39Pb3 or CW614N, in material condition H115, rectangular, nominal cross-sectional dimensions 6,0 mm × 5,0 mm, with sharp corners, in 25 kg coils:
1 000 kg Wire EN 12166 — CuZn39Pb3 — H115 — RCT 6,0 ×××× 5,0 — SH
— 25 kg coils
or
1 000 kg Wire EN 12166 — CW614N — H115 — RCT 6,0 ×××× 5,0 — SH
— 25 kg coils EXAMPLE 2 Ordering details for 5 000 kg wire for general purposes conforming to EN 12166, in material designated either CuZn39Pb3 or CW614N, in material condition R420, round, nominal diameter 6,0 mm, tolerance class B, on 1 000 kg spools:
5 000 kg Wire EN 12166 — CuZn39Pb3 — R430 — RND6,0B
— 1 000 kg spools
or
5 000 kg Wire EN 12166 — CW614N — R430 — RND6,0B
— 1 000 kg spools SIST EN 12166:2011
EN 12166:2011 (E) 11 6 Requirements 6.1 Composition The composition shall conform to the requirements for the appropriate material given in Tables 1 to 6. 6.2 Mechanical properties The tensile properties of R. material condition or the hardness properties of H. material condition shall conform to the appropriate requirements given in Tables 7 to 12. The tests shall be carried out in accordance with 8.2 or 8.3. 6.3 Grain size The grain size of G. material condition shall conform to the appropriate ranges in Table 13. The tests shall be carried out in accordance with 8.4. 6.4 Dimensions and tolerances 6.4.1 Diameter or width across-flats The diameter or width across-flats shall conform to the tolerances given in Tables 14 to 16. NOTE The diameter of round wire is calculated as the mean of one or more pairs of measurements taken at right angles at the same cross-section of the wire. 6.4.2 Shape tolerances for round wire The deviation from circular form of round wire less than 3,0 mm diameter, shall not exceed half the range of the tolerance on diameter given in Table 14. The deviation from circular form of round wire equal to or greater than 3,0 mm diameter, shall not exceed the range of the tolerance on diameter given in Table 14. 6.4.3 Corner and edge geometry (wire with square and rectangular cross-section only) The radii of the corners of wires shall conform to the requirements given in Table 17 for sharp or rounded corners. For wires with the minimum width across-flats less than 3 mm the corners shall be calculated according to Figure 1. For wires with both widths across-flats equal to or greater than 3 mm, except in cases of dispute, the corners shall be measured directly, either by use of a gauge or an optical projector. In cases of dispute the method by optical projector shall be used. Wire edges shall be smooth along the product length without discontinuity. SIST EN 12166:2011
EN 12166:2011 (E) 12
For sizes below 3 mm, the corner radius c is calculated from the equation: 221ccc+= and may fall anywhere between fully circular 'a' and a chamfer 'b'. Figure 1 — Calculation of corner radii 6.5 Joins Welds made before the final drawing sequence are permissible. Joins made after the final drawing sequence are not permitted unless there has been agreement between the purchaser and the supplier on the method of performing and marking these joins. 7 Sampling 7.1 General When required (e.g. if necessary in accordance with specified procedures of a supplier's quality system, or when the purchaser requests inspection documents with test results, or for use in cases of dispute), an inspection lot shall be sampled in accordance with 7.2 and 7.3. 7.2 Analysis The sampling rate shall be in accordance with Table 18. A test sample, depending on the analytical technique to be employed, shall be prepared from each sampling unit and used for the determination of the composition. NOTE 1 When preparing the test sample, care should be taken to avoid contaminating or overheating the test sample. Carbide tipped tools are recommended; steel tools, if used, should be made of magnetic material to assist in the subsequent removal of extraneous iron. If the test samples are in finely divided form (e.g. drillings, millings), they should be treated carefully with a strong magnet to remove any particles of iron introduced during preparation. NOTE 2 In cases of dispute concerning the results of analysis, the full procedure given in ISO 1811-2 should be followed. NOTE 3 Results may be used from analyses carried out at an earlier stage of manufacturing the product, e.g. at the casting stage, if the material identity is maintained and if the quality system of the manufacturer is certified as conforming to EN ISO 9001. 7.3 Tensile, hardness and grain size tests The sampling rate shall be in accordance with Table 18. Sampling units shall be selected from the finished products. The test samples shall be cut from the sampling units. Test samples, and test pieces prepared from them, shall not be subjected to any further treatment other than any machining operations necessary in the preparation of the test pieces. SIST EN 12166:2011
EN 12166:2011 (E) 13 8 Test methods 8.1 Analysis Analysis shall be carried out on the test pieces, or test portions, prepared from the test samples obtained in accordance with 7.2. Except in cases of dispute, the analytical methods used shall be at the discretion of the supplier. In cases of dispute, the methods of analysis to be used shall be agreed between the disputing parties. For expression of results, the rounding rules given in 8.6 shall be used. 8.2 Tensile test The tensile test shall be performed on a coaxial test piece cut from a test sample obtained in accordance with 7.3. The test shall be carried out in accordance with the method given in EN ISO 6892-1. For expression of results, the rounding rules given in 8.6 shall be used. NOTE 1 For other than round wire, the tensile test results should be calculated using nominal cross-sectional areas. NOTE 2 Elongation requirements for wire of diameter: a) less than 4 mm
(A100 mm); b) 4 mm up to and including 8 mm (A11,3); c) greater than 8 mm
(A); are based on original gauge lengths of 100 mm, 11,3 oS mm and 5,65 oS mm respectively, where So is the original cross-sectional area of the test piece in square millimetres. Elongation values are not a
...
SLOVENSKI STANDARD
oSIST prEN 12166:2009
01-junij-2009
Baker in bakrove zlitine - Žica za splošno uporabo
Copper and copper alloys - Wire for general purposes
Kupfer und Kupferlegierungen - Drähte zur allgemeinen Verwendung
Ta slovenski standard je istoveten z: prEN 12166
ICS:
77.150.30 Bakreni izdelki Copper products
oSIST prEN 12166:2009 en,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN 12166:2009
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oSIST prEN 12166:2009
EUROPEAN STANDARD
DRAFT
prEN 12166
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2009
ICS 77.150.30 Will supersede EN 12166:1998
English Version
Copper and copper alloys - Wire for general purposes
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC 133.
If this draft becomes a European Standard, 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.
This draft European Standard was established by CEN 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 Management Centre has the
same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, 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 Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2009 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 12166:2009: E
worldwide for CEN national Members.
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oSIST prEN 12166:2009
prEN 12166:2009 (E)
Contents Page
Foreword .4
1 Scope .5
2 Normative references .5
3 Terms and definitions .5
4 Designation .6
4.1 Material .6
4.1.1 General .6
4.1.2 Symbol .6
4.1.3 Number .6
4.2 Material condition .6
4.3 Product .6
5 Ordering information .8
6 Requirements .9
6.1 Composition .9
6.2 Mechanical properties .9
6.3 Grain size .9
6.4 Dimensions and tolerances .9
6.4.1 Diameter or width across-flats .9
6.4.2 Shape tolerances for round wire .9
6.4.3 Corner and edge geometry (wire with square and rectangular cross-section only) .9
6.5 Joins . 10
7 Sampling . 10
7.1 General . 10
7.2 Analysis . 10
7.3 Tensile, hardness and grain size tests . 10
8 Test methods . 11
8.1 Analysis . 11
8.2 Tensile test . 11
8.3 Hardness test . 11
8.4 Estimation of average grain size . 12
8.5 Retests . 12
8.6 Rounding of results . 12
9 Declaration of conformity and inspection documentation . 12
9.1 Declaration of conformity . 12
9.2 Inspection documentation . 12
10 Marking, packaging, labelling . 12
Annex A (informative) Position of wire cross-section within a coil, reel, spool or drum . 26
Annex ZA (informative) Relationship between this European Standard and the Essential
Requirements of EU Pressure Equipment Directive (PED) 97/23/EC . 28
Bibliography . 29
Figures
Figure 1 — Calculation of corner radii. 10
Figure A.1 — Illustration of position of wire cross-section within the coil (bunched wound or
stagger/traverse wound) . 26
Figure A.2 — Illustration of position of wire cross-section within the reel/spool/drum
(stagger/traverse wound) . 26
2
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oSIST prEN 12166:2009
prEN 12166:2009 (E)
Figure A.3 — Illustration of position of wire cross-section within the coil (bunched wound or
stagger/traverse wound) . 27
Figure A.4 — Illustration of position of wire cross-section within the reel/spool/drum
(stagger/traverse wound) . 27
Tables
Table 1 — Composition of low alloyed copper alloys . 13
Table 2 — Composition of copper-nickel-zinc alloys . 14
Table 3 — Composition of copper-tin alloys . 14
Table 4 — Composition of copper-zinc alloys. 15
Table 5 — Composition of copper-zinc-lead alloys . 15
Table 6 — Composition of complex copper-zinc alloys . 16
Table 7 — Mechanical properties of wire of low alloyed copper alloys . 17
Table 8 — Mechanical properties of wire of copper-nickel-zinc alloys . 18
Table 9 — Mechanical properties of wire of copper-tin alloys . 19
Table 10 — Mechanical properties of wire of copper-zinc alloys . 20
Table 11 — Mechanical properties of wire of copper-zinc-lead alloys . 22
Table 12 — Mechanical properties of wire of complex copper-zinc alloys . 22
Table 13 — Grain size designations . 23
Table 14 — Tolerances on diameter of round wire . 23
Table 15 — Tolerances on width across-flats of square or regular polygonal wire . 24
Table 16 — Tolerances on width and thickness of rectangular wire . 24
Table 17 — Corner radii for square or rectangular wire . 25
Table 18 — Sampling rate . 25
Table ZA.1 — Correspondence between this European Standard and Directive 97/23/EC . 28
3
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oSIST prEN 12166:2009
prEN 12166:2009 (E)
Foreword
This document (prEN 12166:2009) has been prepared by Technical Committee CEN/TC 133 “Copper and
copper alloys”, the secretariat of which is held by DIN.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 12166:1998.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports essential requirements of EU Pressure Equipment Directive
(PED) 97/23/EC.
For relationship with EU Directive 97/23/EC, see informative Annex ZA, which is an integral part of this
document.
Within its programme of work, Technical Committee CEN/TC 133 requested CEN/TC 133/WG 4 "Extruded
and drawn products, forging and scrap" to revise the following standard:
EN 12166, Copper and copper alloys — Wire for general purposes
This is one of a series of European Standards for the copper and copper alloy products rod, wire and profile.
Other products are specified as follows:
EN 12163, Copper and copper alloys — Rod for general purposes
EN 12164, Copper and copper alloys — Rod for free machining purposes
EN 12165, Copper and copper alloys — Wrought and unwrought forging stock
EN 12167, Copper and copper alloys — Profiles and rectangular bars for general purposes
EN 12168, Copper and copper alloys — Hollow rod for free machining purposes
EN 13347, Copper and copper alloys — Rod and wire for welding and braze welding
EN 13601, Copper and copper alloys — Copper rod, bar and wire for general electrical purposes
EN 13602, Copper and copper alloys — Drawn round copper wire for the manufacture of electrical conductors
EN 13605, Copper and copper alloys — Copper profiles and profiled wire for electrical purposes
In comparison with the first edition of EN 12166:1998, the following significant technical changes were made:
some materials have been removed because they are no longer of economic importance;
the Tables 7 to 12 of mechanical properties were rationalised to reflect current requirements of economic
importance.
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1 Scope
This European Standard specifies the composition, property requirements and dimensional tolerances for
copper and copper alloy wire, final produced by drawing, rolling or extruding, intended for general purposes,
spring and fastener manufacturing applications.
The sampling procedures, the methods of test for verification of conformity to the requirements of this
European Standard, and the delivery conditions are also specified.
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 1173, Copper and copper alloys — Material condition designation
EN 1412, Copper and copper alloys — European numbering system
EN 1655, Copper and copper alloys — Declarations of conformity.
EN 10002-1, Metallic materials — Tensile testing — Part 1: Method of test at ambient temperature
EN 10204, Metallic products — Types of inspection documents
EN ISO 2624, Copper and copper alloys — Estimation of average grain size
EN ISO 6507-1, Metallic materials — Vickers hardness test — Part 1: Test method
EN ISO 9001, Quality management systems — Requirements
ISO 31-0, Quantities and units — Part 0: General principles
ISO 1190-1, Copper and copper alloys — Code of designation — Part 1: Designation of materials
ISO 1811-2, Copper and copper alloys — Selection and preparation of samples for chemical analysis —
Part 2: Sampling of wrought products and castings
3 Terms and definitions
For the purposes of this European Standard, the following terms and definitions apply.
3.1
wire
wound product of uniform cross-section along its whole length, with cross-sections in the shape of circles,
squares, regular polygons, rectangles with round or sharp edges or small profiles
3.2
deviation from circular form
difference between the maximum and the minimum diameter measured at any one cross-section of the round
product.
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4 Designation
4.1 Material
4.1.1 General
The material is designated either by symbol or number (see Tables 1 to 6).
4.1.2 Symbol
The material symbol designation is based on the designation system given in ISO 1190-1.
NOTE Although 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 material number designation is in accordance with the system given in EN 1412.
4.2 Material condition
For the purposes of this standard, the following designations, which are in accordance with the system given
in EN 1173, apply for the material condition:
M Material condition for the product as manufactured, without specified mechanical properties;
R. Material condition designated by the minimum value of tensile strength requirement for the product
with mandatory tensile property requirements;
H. Material condition designated by the minimum value of Vickers hardness requirement for the product
with mandatory hardness requirements;
S (suffix) Material condition for a product which is stress relieved.
G. Material condition designated by the mid-range value of grain size requirement for the product
with mandatory grain size requirements (Table 13).
NOTE The G. material condition is normally applicable only to round wires in the soft material condition made from
alloys given in Tables 3, 4 and non-leaded alloys given in Table 2.
Exact conversion between material conditions designated R., H. and G. is not possible.
Except when the suffix S is used, material condition is designated by only one of the above designations.
4.3 Product
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 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 (Wire);
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number of this European Standard (EN 12166);
material designation, either symbol or number (see Tables 1 to 6);
material condition designation (see 4.2 and Tables 7 to 12);
cross-sectional shape (the following designations shall be used as appropriate: RND for round, SQR for
square, RCT for rectangular, HEX for hexagonal, OCT for octagonal, PFL for profile);
nominal cross-sectional dimension(s) (or the number of the profile or a fully dimensioned and toleranced
drawing);
tolerance class for round, square or polygonal wire, (see Tables 14 and 15);
corner radii for square or rectangular wire (the following designations shall be used as appropriate: SH for
sharp, RD for rounded), (see Table 17).
The derivation of a product designation is shown in Example 1 and another typical product designation is
shown in example 2.
EXAMPLE 1 Wire conforming to this standard, in material designated either CuZn39Pb3 or CW614N, in material
condition H115, rectangular, nominal cross-sectional dimensions 6,0 mm × 5,0 mm, with sharp corners,
shall be designated as follows:
Wire EN 12166 — CuZn39Pb3 — H115 — RCT6,0 ×× 5,0 — SH
××
or
Wire EN 12166 — CW614N — H115 — RCT6,0 ×× 5,0 — SH
××
Denomination
Number of this European Standard
Material designation
Material condition designation
Cross-sectional shape and nominal dimensions in millimetres
Corner designation
EXAMPLE 2 Wire conforming to this standard, in material designated either CuZn39Pb3 or CW614N, in material
condition R430, round, nominal diameter 6,0 mm, tolerance class B, shall be designated as follows:
Wire EN 12166 — CuZn39Pb3 — R430 — RND6,0B
or
Wire EN 12166 — CW614N — R430 — RND6,0B
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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 information:
a) quantity of product required (mass);
b) denomination (Wire);
c) number of this European Standard (EN 12166);
d) material designation (see Tables 1 to 6);
e) material condition designation (see 4.2 and Tables 7 to 13) if other than M.
f) cross-sectional shape;
g) nominal cross-sectional dimension(s) (diameter or width across-flats);
h) for round, square and regular polygonal wire, the tolerance class required, unless the tolerance class is to
be left to the discretion of the supplier, (see Tables 14 and 15). For profiles, the tolerances required (or a
drawing with dimensions and tolerances);
i) for square or rectangular wire, whether 'sharp' or 'rounded' corners are required, unless the corner radii
are to be left to the discretion of the supplier (see Table 17).
NOTE 2 It is recommended that the product designation, as described in 4.3, is used for items b) to i).
In addition, the purchaser shall also state on the enquiry and order any the following, if required:
j) for profiles, if the shape is such that the position of the cross-section within the coil, reel, spool or drum is
of importance to the purchaser, this should be stated on the drawing (see Annex A for illustration);
k) for profiles, whether mechanical properties are required. If so, the method of test and the level of
properties shall be agreed between the purchaser and the supplier;
l) whether the products are to be supplied in a thermally stress relieved material condition;
m) whether a declaration of conformity is required (see 9.1);
n) whether an inspection document is required, and if so, which type (see 9.2);
o) whether there are any special requirements for marking, labelling or packaging including, if necessary,
any limitation on dimensions or mass of coils, spools, reels or drums (see Clause 10).
EXAMPLE 1 Ordering details for 1 000 kg wire for general purposes conforming to EN 12166, in material designated
either CuZn39Pb3 or CW614N, in material condition H115, rectangular, nominal cross-sectional
dimensions 6,0 mm × 5,0 mm, with sharp corners, in 25 kg coils:
1 000 kg Wire EN 12166 — CuZn39Pb3 — H115 — RCT 6,0 ×××× 5,0 — SH
— 25 kg coils
or
1 000 kg Wire EN 12166 — CW614N — H115 — RCT 6,0 ×× 5,0 — SH
××
— 25 kg coils
EXAMPLE 2 Ordering details for 5 000 kg wire for general purposes conforming to EN 12166, in material designated
either CuZn39Pb3 or CW614N, in material condition R420, round, nominal diameter 6,0 mm, tolerance
class B, on 1 000 kg spools:
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5 000 kg Wire EN 12166 — CuZn39Pb3 — R430 — RND6,0B
— 1 000 kg spools
or
5 000 kg Wire EN 12166 — CW614N — R430 — RND6,0B
— 1 000 kg spools
6 Requirements
6.1 Composition
The composition shall conform to the requirements for the appropriate material given in Tables 1 to 6.
6.2 Mechanical properties
The tensile properties of R. material condition or the hardness properties of H. material condition shall
conform to the appropriate requirements given in Tables 7 to 12. The tests shall be carried out in accordance
with 8.2 or 8.3.
6.3 Grain size
The grain size of G. material condition shall conform to the appropriate ranges in Table 13. The tests shall be
carried out in accordance with 8.4.
6.4 Dimensions and tolerances
6.4.1 Diameter or width across-flats
The diameter or width across-flats shall conform to the tolerances given in Tables 14 to 16.
NOTE The diameter of round wire is calculated as the mean of one or more pairs of measurements taken at right
angles at the same cross-section of the wire.
6.4.2 Shape tolerances for round wire
The deviation from circular form of round wire less than 3,0 mm diameter, shall not exceed half the range of
the tolerance on diameter given in Table 14. The deviation from circular form of round wire equal to or greater
than 3,0 mm diameter, shall not exceed the range of the tolerance on diameter given in Table 14.
6.4.3 Corner and edge geometry (wire with square and rectangular cross-section only)
The radii of the corners of wires shall conform to the requirements given in Table 17 for sharp or rounded
corners.
For wires with the minimum width across-flats less than 3 mm the corners shall be calculated according to
Figure 1. For wires with both widths across-flats equal to or greater than 3 mm, except in cases of dispute, the
corners shall be measured directly, either by use of a gauge or an optical projector. In cases of dispute the
method by optical projector shall be used.
Shaped wire corners and edges shall be smooth and shall not have projecting edges.
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For sizes below 3 mm, the corner radius c is calculated from the formula:
c + c
1 2
c=
2
and may fall anywhere between fully circular 'a' and a chamfer 'b'.
Figure 1 — Calculation of corner radii
6.5 Joins
Welds made before the final drawing sequence are permissible. Joins made after the final drawing sequence
are not permitted unless there has been agreement between the purchaser and the supplier on the method of
performing and marking these joins.
7 Sampling
7.1 General
When required (e.g. if necessary in accordance with specified procedures of a supplier's quality system, or
when the purchaser requests inspection documents with test results, or for use in cases of dispute), an
inspection lot shall be sampled in accordance with 7.2 and 7.3.
7.2 Analysis
The sampling rate shall be in accordance with Table 18. A test sample, depending on the analytical technique
to be employed, shall be prepared from each sampling unit and used for the determination of the composition.
NOTE 1 When preparing the test sample, care should be taken to avoid contaminating or overheating the test sample.
Carbide tipped tools are recommended; steel tools, if used, should be made of magnetic material to assist in the
subsequent removal of extraneous iron. If the test samples are in finely divided form (e.g. drillings, millings), they
should be treated carefully with a strong magnet to remove any particles of iron introduced during preparation.
NOTE 2 In cases of dispute concerning the results of analysis, the full procedure given in ISO 1811-2 should be followed.
NOTE 3 Results may be used from analyses carried out at an earlier stage of manufacturing the product, e.g. at the
casting stage, if the material identity is maintained and if the quality system of the manufacturer is certified as
conforming to EN ISO 9001.
7.3 Tensile, hardness and grain size tests
The sampling rate shall be in accordance with Table 18. Sampling units shall be selected from the finished
products. The test samples shall be cut from the sampling units. Test samples, and test pieces prepared from
them, shall not be subjected to any further treatment other than any machining operations necessary in the
preparation of the test pieces.
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8 Test methods
8.1 Analysis
Analysis shall be carried out on the test pieces, or test portions, prepared from the test samples obtained in
accordance with 7.2. Except in cases of dispute, the analytical methods used shall be at the discretion of the
supplier. In cases of dispute, the methods of analysis to be used shall be agreed between the disputing
parties. For expression of results, the rounding rules given in 8.6 shall be used.
8.2 Tensile test
The tensile test shall be performed on a coaxial test piece cut from a test sample obtained in accordance with
7.3. The test shall be carried out in accordance with the method given in EN 10002-1. For expression of
results, the rounding rules given in 8.6 shall be used.
NOTE 1 For other than round wire, the tensile test results should be calculated using nominal cross-sectional areas.
NOTE 2 Elongation requirements for wire of diameter:
a) less than 4 mm (A );
100 mm
b) 4 mm up to and including 8 mm (A );
11,3
c) greater than 8 mm (A);
are based on original gauge lengths of 100 mm, 11,3 S mm and 5,65 S mm respectively, where S is
o
o o
the original cross-sectional area of the test piece in square millimetres.
Elongation values are not applicable to wire sizes less than 0,5 mm (or equivalent cross- sectional areas for
polygonal wires).
8.3 Hardness test
Hardness shall be determined on test pieces cut from a test sample obtained in accordance with 7.3. The test
shall be carried out in accordance with ISO 6507-1 and the indentation made:
The position of the impression/indentation shall be:
a) for round wire 5 mm diame
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