EN 12164:2011

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

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.
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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
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

(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

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

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

— 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.
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