SIST EN 12164:2011
(Main)Copper and copper alloys - Rod for free machining purposes
Copper and copper alloys - Rod for free machining purposes
The document specifies the composition, property requirements and dimensional tolerances for copper alloy rod supplied in straight lengths, intended for free machining applications. The sampling procedures and the methods of test for verification of conformity to the requirements of the document are also specified.The document contains the amendment 1, which modifies the text of the introduction, table 2 and table 7.
Kupfer und Kupferlegierungen - Stangen für die spanende Bearbeitung
Diese Europäische Norm legt die Zusammensetzung, die Anforderungen an die Eigenschaften und Grenz-abmaße für durch Ziehen oder Pressen endgefertigte Stangen in runder, quadratischer, sechseckiger oder achteckiger Form aus Kupferlegierungen für die spanende Bearbeitung fest. Der Ablauf der Probenentnahme und die Prüfverfahren zur Feststellung der Übereinstimmung mit den Anforde-rungen dieser Norm sind ebenfalls festgelegt.
Cuivre et alliages de cuivre - Barres pour décolletage
La présente Norme européenne spécifie la composition, les caractéristiques et les tolérances dimensionnelles
des barres en alliage de cuivre de forme ronde, carrée, hexagonale ou octogonale, fabriquées par étirage ou
filage, particulièrement conçues pour le décolletage.
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 - Palice za obdelavo z odrezovanjem na avtomatih
Dokument določa sestavo, zahteve za lastnosti in odstopke mer za ravne palice iz bakrovih zlitin za obdelavo z odrezovanjem na avtomatih. Določeni so tudi postopki vzorčenja in metode preskušanja za preverjanje skladnosti z zahtevami tega dokumenta. Dokument vsebuje amandma 1, ki spreminja besedilo uvoda, preglednico 2 in preglednico 7.
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 - Palice za obdelavo z odrezovanjem na avtomatihKupfer und Kupferlegierungen - Stangen für die spanende BearbeitungCuivre et alliages de cuivre - Barres pour décolletageCopper and copper alloys - Rod for free machining purposes77.150.30Bakreni izdelkiCopper productsICS:Ta slovenski standard je istoveten z:EN 12164:2011SIST EN 12164:2011en,fr,de01-oktober-2011SIST EN 12164:2011SLOVENSKI
STANDARDSIST EN 12164:1998/A1:2002SIST EN 12164:19981DGRPHãþD
SIST EN 12164:2011
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 12164
June 2011 ICS 77.150.30 Supersedes EN 12164:1998English Version
Copper and copper alloys - Rod for free machining purposes
Cuivre et alliages de cuivre - Barres pour décolletage
Kupfer und Kupferlegierungen - Stangen für die spanende Bearbeitung 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 12164:2011: ESIST EN 12164:2011
EN 12164:2011 (E) 2 Contents Page Foreword .4Introduction .61Scope .72Normative references .73Terms and definitions .74Designations .84.1Material .84.1.1General .84.1.2Symbol .84.1.3Number .84.2Material condition .84.3Product .85Ordering information .96Requirements . 106.1Composition . 106.2Mechanical properties . 106.3Resistance to dezincification . 106.4Residual stress level . 116.5Dimensions and tolerances . 116.5.1Diameter or width across-flats . 116.5.2Shape tolerances . 116.5.3Straightness . 116.5.4Length . 116.5.5Corner radii . 126.5.6Twist of polygonal rod . 126.5.7Shaped ends . 127Sampling . 147.1General . 147.2Analysis . 147.3Mechanical tests . 147.4Dezincification resistance and stress corrosion resistance tests . 148Test methods . 148.1Analysis . 148.2Tensile test . 158.2.1General . 158.2.2Location of test pieces . 158.2.3Shape and size of test pieces . 158.2.4Procedure for testing . 158.2.5Determination of results . 158.3Hardness test . 158.4Dezincification resistance test . 168.5Stress corrosion resistance test . 168.6Determination of the electrical conductivity . 168.7Retests . 168.7.1Analysis, tensile test, hardness test and dezincification resistance test, determination of the electrical conductivity . 168.7.2Stress corrosion resistance test . 16SIST EN 12164:2011
EN 12164:2011 (E) 3 8.8Rounding of results . 179Declaration of conformity and inspection documentation . 179.1Declaration of conformity . 179.2Inspection documentation . 1710Marking, packaging, labelling . 17Annex A (normative)
Determination of mean depth of dezincification . 33A.1Introduction . 33A.2Procedure . 33A.3Expression of results . 33Bibliography . 35 Figures Figure 1 — Measurement of twist of polygonal rod . 12 Figure 2 — Shaped ends of rod, Types . 13 Figure A.1 — Example of contiguous fields . 34
Tables Table 1 — Indicative shaped ends dimensions . 13 Table 2 — Composition of low alloyed copper alloys . 18 Table 3 — Composition of copper-nickel-zinc alloys . 19 Table 4 — Composition of copper-tin alloys . 19 Table 5 — Composition of copper-zinc alloys . 20 Table 6 — Composition of copper-zinc-lead alloys . 21 Table 7 — Composition of complex copper-zinc alloys . 23 Table 8 — Mechanical properties of rod of low alloyed copper alloys . 24 Table 9 — Mechanical properties of rod of copper-nickel-zinc alloys . 25 Table 10 — Mechanical properties of rod of copper-tin alloys . 26 Table 11 — Mechanical properties of rod of copper-zinc alloys . 27 Table 12 — Mechanical properties of rod of copper-zinc-lead alloys . 28 Table 13 — Mechanical properties of rod of complex copper-zinc alloys . 29 Table 14 — Tolerances on diameter of round rod (including deviation from circular form) . 30 Table 15 — Tolerances on width across-flats of regular polygonal rod . 30 Table 16 — Tolerances on straightness of rod . 31 Table 17 — Tolerances on length of nominal length rod . 31 Table 18 — Corner radii for square, hexagonal and octagonal rod . 31 Table 19 — Maximum twist of square, hexagonal and octagonal rod . 32 Table 20 — Sampling rate . 32
SIST EN 12164:2011
EN 12164:2011 (E) 4 Foreword This document (EN 12164:2011) 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 12164:1998. 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 12164:1998, Copper and copper alloys — Rod for free machining 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 12165, Copper and copper alloys — Wrought and unwrought forging stock; EN 12166, Copper and copper alloys — Wire for general purposes; 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 wires for electrical purposes. In comparison with EN 12164:1998, the following significant technical changes were made: a) Introduction of indicative shaped ends dimensions (Table 1); b) Removal of four materials: 1) CuZn38Pb4 (CW609N); 2) CuZn37Pb1Sn1 (CW714R); 3) CuSn4Pb2P (CW455K) and CuSn4Te1P (CW457K); SIST EN 12164:2011
EN 12164:2011 (E) 5 c) Addition of five new materials: 1) CuZn40 (CW509L), CuZn42 (CW510L) and CuZn38As (CW511L) due to the market requirements on restriction of lead; 2) CuZn21Si3P (CW724R) due to the market requirements on restriction of lead; 3) CuZn32Pb2AsFeSi (CW709R); d) Revision of the mechanical properties (Tables 8 to 13) to reflect market needs; in particular the 0,2 % proof strength that was previously informative is now mandatory since it is an important figure for design purposes; e) Modification of the sampling rate (Table 20). 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 12164:2011
EN 12164:2011 (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 12164:2011
EN 12164:2011 (E) 7 1 Scope This European Standard specifies the composition, property requirements and dimensional tolerances for copper alloy rod, in the shape of circles, squares, hexagons or octagons, finally produced by drawing or extruding, especially intended for free machining purposes. 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 14977, Copper and copper alloys — Detection of tensile stress — 5 % ammonia test EN ISO 6506-1, Metallic materials — Brinell hardness test — Part 1: Test method (ISO 6506-1:2005) EN ISO 6509:1995, Corrosion of metals and alloys — Determination of dezincification resistance of brass (ISO 6509:1981) 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 ISO 6957, Copper alloys — Ammonia test for stress corrosion resistance 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 rod straight product of uniform cross-section along its whole length [EN 12163:2011] 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 12164:2011
EN 12164:2011 (E) 8 4 Designations 4.1 Material 4.1.1 General The material is designated either by symbol or number (see Tables 2 to 7). 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 hardness requirement for the product with mandatory hardness requirements; S (suffix) Material condition for a product which is stress relieved. NOTE Products in the M, R… or H… condition may be specially processed (i.e. mechanically or thermally stress relieved) in order to lower the residual stress level to improve the resistance to stress corrosion and the dimensional stability on machining [see 5 k), 5 l) and 8.5]. Exact conversion between material conditions designated R. and H. 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 (Rod); number of this European Standard (EN 12164); material designation, either symbol or number (see Tables 2 to 7); SIST EN 12164:2011
EN 12164:2011 (E) 9 material condition designation (see Tables 8 to 13); cross-sectional shape (the following designations shall be used, as appropriate: RND for round, SQR for square, HEX for hexagonal, OCT for octagonal); nominal cross-sectional dimension (diameter or width across-flats); for round rod, the tolerance class (see Table 14); for square, hexagonal or octagonal rod, the corner shape (the following designations shall be used as appropriate: SH for sharp, RD for rounded) (see Table 18). The derivation of a product designation is shown in the following example. EXAMPLE Rod for free machining purposes conforming to this standard, in material designated either CuZn39Pb3 or CW614N, in material condition R500, round cross-section, nominal diameter 11,75 mm, tolerance Class A, shall be designated as follows:
Rod — EN 12164 — CuZn39Pb3 — R500 — RND11,75A
or
Rod — EN 12164 — CW614N — R500 — RND11,75A Denomination Number of this European Standard Material designation Material condition designation Cross-sectional shape, nominal cross-sectional dimension in millimetres, tolerance class 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 (Rod); c) number of this European Standard (EN 12164); d) material designation (see Tables 2 to 7); e) material condition designation (see 4.2 and Tables 8 to 13) if it is other than M; f) cross-sectional shape; g) nominal cross-sectional dimension (diameter or width across-flats); h) for round rod up to and including 30 mm diameter, whether Class A or Class B tolerances are required, unless the tolerance class is to be left to the discretion of the supplier (see Table 14); SIST EN 12164:2011
EN 12164:2011 (E) 10 i) for rod with square, hexagonal and octagonal cross-section, whether "sharp" or "rounded" corners are required unless the corner radii of the rod are to be left to the discretion of the supplier (see 6.5.5 and Table 18); j) length of product required. Normally rod is supplied to “nominal length” tolerances (see Table 17). If “fixed lengths” are required, the length and tolerance shall be stated (see 6.5.4). 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: k) whether the products are required to pass a stress corrosion resistance test. If so which test method is to be used (see 8.5), if the choice is not to be left to the discretion of the supplier. If the purchaser chooses ISO 6957, the pH value for the test solution is to be selected; l) whether the products are to be supplied in a thermally stress relieved material condition; m) whether the products are to be supplied with shaped ends which are different from those specified in 6.5.7; n) whether a declaration of conformity is required (see 9.1); o) whether an inspection document is required, and if so, which type (see 9.2); p) whether there are any special requirements for marking, packaging or labelling (see Clause 10). EXAMPLE Ordering details for 500 kg rod for free machining purposes conforming to EN 12164, in material designated either CuZn39Pb3 or CW614N, in material condition R500, round cross-section, nominal diameter 11,75 mm, tolerance Class A, nominal length 3 000 mm, shaped ends (type A and type B according to standard): 500 kg Rod EN 12164 — CuZn39Pb3 — R500 — RND11,75A
— nominal length 3 000 mm or 500 kg Rod EN 12164 — CW614N — R500 — RND11,75A
— nominal length 3 000 mm 6 Requirements 6.1 Composition The composition shall conform to the requirements for the appropriate material given in Tables 2 to 7. 6.2 Mechanical properties The tensile or the hardness properties shall conform to the appropriate requirements given in Tables 8 to 13. The tests shall be carried out in accordance with 8.2 or 8.3. 6.3 Resistance to dezincification The maximum depth of dezincification of CuZn38As (CW511L), CuZn36Pb2As (CW602N), CuZn32Pb2AsFeSi (CW709R) and CuZn21Si3P (CW724R) products shall be 100 µm for sizes up to 40 mm. For greater sizes the average depth of dezincification shall be less than 100 µm and the maximum measured value shall be less than 200 µm.
SIST EN 12164:2011
EN 12164:2011 (E) 11 The test shall be carried out in accordance with 8.4. Products in CuZn21Si3P (CW724R) that have passed the test shall be marked with “Si”. NOTE Products in the alloys CuZn38As (CW511L), CuZn36Pb2As (CW602N) and CuZn32Pb2AsFeSi (CW709R) may be subjected to heat treatment in the range 450 °C to 550 °C during manufacture. If the user needs to heat the material above 530 °C during subsequent processing then advice should be sought from the supplier. 6.4 Residual stress level Products ordered and supplied in the stress relieved condition (see NOTE to 4.2) shall show no evidence of cracking when tested. The tests shall be carried out in accordance with 8.5. 6.5 Dimensions and tolerances 6.5.1 Diameter or width across-flats The diameter or width across-flats shall conform to the tolerances given in Tables 14 or 15. NOTE The diameter of round rod is calculated as the mean of one or more pairs of measurements taken at right angles at the same cross-section of the rod. 6.5.2 Shape tolerances 6.5.2.1 Round rod The deviation from circular form shall not exceed half the range of the tolerance on diameter specified in Table 14. 6.5.2.2 Rod with square, hexagonal or octagonal cross-section (see above) The width across-flats, measured at the centre of the faces at any one cross-section, shall not differ by more than half the range of the tolerance given for the size in Table 15. 6.5.3 Straightness For rod of diameter, or width across-flats, from 10 mm up to and including 50 mm, and of length 1 000 mm or over, the deviation from straightness, defined as the curvature (depth of arc) against a datum line when the product is lying flat in a horizontal plane, shall conform to the tolerances given in Table 16. NOTE Outside this size range, the deviation from straightness is subject to agreement between the purchaser and the supplier. 6.5.4 Length Products shall be supplied as "nominal lengths" unless "fixed lengths" are specifically ordered by the purchaser (see NOTE 2). "Nominal lengths" are supplied in the preferred lengths given in Table 17 and shall conform to the tolerances given in the table. NOTE 1 Subject to agreement between the purchaser and the supplier, an agreed proportion of underlength rod may be included in a consignment of "nominal lengths" rod. NOTE 2 The length and the length tolerances of "fixed lengths" rod are subject to agreement between the purchaser and the supplier [see 5 j)]. SIST EN 12164:2011
EN 12164:2011 (E) 12 6.5.5 Corner radii The corner radii of rod with square, hexagonal or octagonal cross-section shall conform to Table 18 [see 5 i)]. NOTE Except in cases of dispute, the corners should be measured directly, either by use of a gauge or an optical projector. In cases of dispute, the method by optical projector should be used. 6.5.6 Twist of polygonal rod The maximum permitted twist V (see Figure 1) of rod with square, hexagonal or octagonal cross-section, as measured between two cross-sections along the rod, shall conform to Table 19.
Key 1 Reference plane V twist W width across-flats Figure 1 — Measurement of twist of polygonal
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