oSIST prEN 12165:2022
(Main)Copper and copper alloys - Wrought and unwrought forging stock
Copper and copper alloys - Wrought and unwrought forging stock
This European Standard specifies the composition, property requirements and dimensional tolerances for forging stock of copper and copper alloys.
The sampling procedures and the methods of test for verification of conformity to the requirements of this European Standard are also specified.
Kupfer und Kupferlegierungen - Vormaterial für Schmiedestücke
Dieses Dokument legt die Zusammensetzung, Anforderungen an die Eigenschaften und Grenzabmaße für Schmiedestücke aus Kupfer und Kupferlegierungen fest.
Der Ablauf der Probenahme und die Prüfverfahren zur Feststellung der Übereinstimmung mit den Anforde
rungen dieses Dokuments sind ebenfalls festgelegt.
Cuivre et alliages de cuivre - Barres corroyées et brutes pour matriçage
Le présent document spécifie la composition, les exigences de propriétés et les tolérances dimensionnelles des pièces en cuivre et alliages de cuivre destinées au matriçage.
Les modes opératoires d’échantillonnage et les méthodes d’essai pour la vérification de la conformité aux exigences du présent document sont également spécifiés.
Baker in bakrove zlitine - Palice (lite in iztiskane) za izkovke
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
oSIST prEN 12165:2022
01-oktober-2022
Baker in bakrove zlitine - Palice (lite in iztiskane) za izkovke
Copper and copper alloys - Wrought and unwrought forging stock
Kupfer und Kupferlegierungen - Vormaterial für Schmiedestücke
Cuivre et alliages de cuivre - Barres corroyées et brutes pour matriçage
Ta slovenski standard je istoveten z: prEN 12165
ICS:
77.150.30 Bakreni izdelki Copper products
oSIST prEN 12165:2022 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN 12165:2022
DRAFT
EUROPEAN STANDARD
prEN 12165
NORME EUROPÉENNE
EUROPÄISCHE NORM
August 2022
ICS 77.150.30 Will supersede EN 12165:2016
English Version
Copper and copper alloys - Wrought and unwrought
forging stock
Cuivre et alliages de cuivre - Barres corroyées et brutes Kupfer und Kupferlegierungen - Vormaterial für
pour matriçage Schmiedestücke
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-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, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey 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
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 12165:2022 E
worldwide for CEN national Members.
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prEN 12165:2022 (E)
Contents Page
European foreword . 3
Introduction . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Designations. 7
4.1 Material . 7
4.1.1 General . 7
4.1.2 Symbol . 7
4.1.3 Number . 7
4.2 Material condition . 7
4.3 Product . 7
5 Ordering information . 9
6 Requirements . 10
6.1 Composition . 10
6.2 Mechanical properties . 10
6.3 Resistance to dezincification . 10
6.4 Dimensions and tolerances . 10
6.4.1 Diameter . 10
6.4.2 Deviation from circular form . 11
6.4.3 Length . 11
6.4.4 Straightness . 11
6.5 Surface quality. 11
6.6 Internal inclusion . 12
7 Sampling . 12
7.1 General . 12
7.2 Analysis . 12
7.3 Hardness and dezincification resistance tests . 12
8 Test methods . 12
8.1 Analysis . 12
8.2 Hardness test . 12
8.2.1 General . 12
8.2.2 Preparation of samples . 13
8.2.3 Procedure for testing . 13
8.3 Dezincification resistance test . 13
8.4 Retests for analysis, hardness and dezincification resistance . 13
8.5 Rounding of results . 13
9 Declaration of conformity and inspection documentation . 14
9.1 Declaration of conformity . 14
9.2 Inspection documentation . 14
10 Marking, packaging, labelling . 14
Bibliography . 27
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European foreword
This document (prEN 12165:2022) 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 12165:2016
In comparison with EN 12165:2016, the following significant technical changes were made:
a) Introduction in the § 6.5 of eddy current test parameters;
b) Introduction of the § 6.6 Internal inclusion;
c) Modified the definition of diameter at § 6.4.1;
d) Added a new Figure for straightness at § 6.4.4 and modified values in Table 11;
e) Introduction in the chemical composition Tables of a footnote to explain the meaning of elements
for which no upper and lower limits are defined;
f) CuZn4Si4MnP (CW245E) and CuZn9Si4MnP (CW246E) added in the new Table 3
g) Chemical composition of CuZn39Pb3 (CW614N), CuZn40Pb2 (CW617N), CuZn35Pb1,5AlAs
(CW625N) and CuZn33Pb1,5AlAs (CW626N) modified in Table 8;
h) Added a new alloy CuZn40Pb1 (CW627N) in Table 8;
i) Chemical composition of CuZn33Pb1AlSiAs (CW725R) modified in Table 9;
j) Added a new alloy CuZn36Si1P (CW726R) in Table 9;
k) Removed Tables of Mechanical properties (old Table 9, Table 10, Table 11, Table 12, Table 13,
Table 14, Table 15 and Table 16);
l) Renamed Table 17 in Table 10, Table 18 in Table 11, Table 19 in Table 12;
m) Added new Table 13.
This document is one of a series of European Standards for the copper and copper alloy products rod,
wire, profile and forgings. 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 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 12420, Copper and copper alloys — Forgings;
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— 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.
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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 alloys
CuZn4Si4MnP (CW245E), CuZn9Si4MnP (CW246E), CuZn33Pb1AlSiAs (CW725R), and
CuZn36Si1P (CW726R) 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 ensured the CEN that he is willing to negotiate licenses either free of
charge or 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.
— For CuZn4Si4MnP (CW245E) and CuZn9Si4MnP (CW246E) information may be obtained from:
Viega Technology GmbH & Co. KG
Viega Platz 1
57439 Attendorn
GERMANY
— For CuZn33Pb1AlSiAs (CW725R) information may be obtained from:
Diehl Brass Solutions Stiftung & Co. KG
Heinrich-Diehl-Straße 9
D-90552 Röthenbach/Pegnitz
GERMANY
— For CuZn36Si1P (CW726R) information may be obtained from:
Luvata Oy
Kuparitie 5
28330 Pori
FINLAND
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.
CEN and CENELEC maintain online lists of patents relevant to their standards. Users are encouraged to
consult the lists for the most up to date information concerning patents
).
(ftp://ftp.cencenelec.eu/EN/IPR/Patents/IPRdeclaration.pdf
Due to developing legislation, the composition of a material may be restricted to the composition
specified in this European Standard with respect to individual uses (e.g. for the use in contact with
drinking water in some Member States of the European Union). These individual restrictions are not
part of this European Standard. Nevertheless, for materials for which traditional and major uses are
affected, these restrictions are indicated. The absence of an indication, however, does not imply that the
material can be used in any application without any legal restriction.
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1 Scope
This document specifies the composition, property requirements and dimensional tolerances for
forging stock of copper and copper alloys.
The sampling procedures and the methods of test for verification of conformity to the requirements of
this document are also specified.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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 1976, Copper and copper alloys - Cast unwrought copper products
EN 10204, Metallic products - Types of inspection documents
EN 17263, Copper and copper alloys - Eddy current testing on the outer surface of rods, bars, hollow rods
and wires for the detection of defects by encircling test coil
EN ISO 6506-1, Metallic materials - Brinell hardness test - Part 1: Test method (ISO 6506-1)
EN ISO 6509-1, Corrosion of metals and alloys - Determination of dezincification resistance of copper
alloys with zinc - Part 1: Test method (ISO 6509-1)
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.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http://www.electropedia.org/
— ISO Online browsing platform: available at http://www.iso.org/obp
3.1
forging
three-dimensional shaped product produced by a plastic forming process such as hammering or
pressing between open or closed dies, including hammering between flat surfaces, normally when hot
Note 1 to entry Forging processes include, drop forging, hot stamping and hot pressing.
3.2
forging stock
extruded, rolled or drawn product such as rod, hollow rod, bar or profile or cast product, intended for
the production of forgings
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3.3
deviation from circular form
difference between the maximum and the minimum diameters measured at any one cross-section of a
round product
4 Designations
4.1 Material
4.1.1 General
The material is designated either by symbol or by number (see Tables 1 to 9).
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;
4.3 Product
The product designation provides a standardized pattern of designation from which a rapid and
unequivocal description of a product can be 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 (Forging stock);
— number of this European Standard (EN 12165);
— material designation, either symbol or number (see Tables 1 to 9);
— DW for compliance in the chemical composition according to the 4 MS Common Composition List.
This information is mandatory in the case in which the product is used for drinking water
applications according to the 4 MS Common Composition List and not to be given in other cases;
— cross-sectional shape (the following designations shall be used as appropriate: RND for round, SQR
for square, HEX for hexagonal, OCT for octagonal, RCT for rectangular (bar), PFL for profile);
— for rod with round or regular polygonal cross-section, hollow rod or bar, the nominal cross-
sectional dimension(s) (diameter, width across-flats, external dimension × internal dimension,
width × thickness, as appropriate);
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— for profiles, the number of the profile, or a fully dimensioned and toleranced drawing;
— for round rod, the tolerance class (see Table 10).
The derivation of a product designation is shown in the following examples.
EXAMPLE 1 Forging stock conforming to this standard, in material designated either CuZn40Pb2 or CW617N,
for standard applications, in material condition M, round, nominal diameter 15 mm, tolerance class A, will be
designated as follows:
EXAMPLE 2 Forging stock conforming to this standard, in material designated either CuZn40Pb2 or CW617N,
for drinking water applications according to the 4 MS Common Composition List, in material condition M, round,
nominal diameter 15 mm, tolerance class A, will be designated as follows:
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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) mass of product required;
b) denomination (Forging stock);
c) number of this European Standard (EN 12165);
d) material designation (see Tables 1 to 9);
e) DW for compliance in the chemical composition according to the 4 MS Common Composition List.
This information is mandatory in the case in which the product is used for drinking water
applications according to the 4 MS Common Composition List and not to be given in other cases;
f) cross-sectional shape;
g) size required:
1) for round rod, diameter and whether class A or class B tolerance is required, unless the
tolerance class shall be left to the discretion of the supplier (see Table 10);
2) for rod with regular polygonal cross-section or hollow rod or bar, nominal dimension(s) and
tolerance(s) required unless they shall be left to the discretion of the supplier;
3) for profiles, a fully dimensioned and toleranced drawing;
h) the length of product required, if not left to the discretion of the supplier;
It is recommended that the product designation, as described in 4.3, is used for items b) to h.
In addition, the purchaser shall also state on the enquiry and order any the following, if required:
i) whether special surface quality is required (see 6.5);
j) whether surface quality test is required (see 6.5) and the class;
k) whether a declaration of conformity is required (see 9.1);
l) whether an inspection document is required, and if so, which type (see 9.2);
m) whether there are any special requirements for marking, packaging or labelling (see Clause 10).
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EXAMPLE Ordering details for 500 kg of forging stock conforming to EN 12165, in material designated either
CuZn40Pb2 or CW617N, for drinking water application according to the 4 MS Common Composition List in
material condition M, round, nominal diameter 15 mm, tolerance class A, length 2 500 mm:
500 kg Forging stock — CuZn40Pb2 — DW — M — RND15A
EN 12165
— length 2 500 mm
or
500 kg Forging stock — CW617N — DW — M — RND15A
EN 12165
— length 2 500 mm
6 Requirements
6.1 Composition
The composition shall conform to the requirements for the appropriate material given in Tables 1 to 9.
Due to developing legislation, specific applications (see 4.3) may require restrictions in the chemical
composition. In this case the limitations shall be specified in the ordering information (see Clause 5 list
entry e)).
6.2 Mechanical properties
Products for forging are delivered in M material condition and special requirements relating to
mechanical properties shall be agreed between the purchaser and the supplier.
6.3 Resistance to dezincification
This requirement only applies to materials that are declared resistant to dezincification.
The maximum depth of dezincification, in any direction, of CuZn38As (CW511L), CuZn36Pb2As
(CW602N), CuZn32Pb2AsFeSi (CW709R), CuZn21Si3P (CW724R) and CuZn33Pb1AlSiAs (CW725R)
products shall be 100 µm. For the alloys CuZn35Pb1,5AlAs (CW625N), CuZn33Pb1,5AlAs (CW626N) the
maximum depth of dezincification, in any direction, shall be 200 µm.
The test shall be carried out in accordance with 8.3.
NOTE 1 Shape and distribution of ß phase aggregates can influence the dezincification resistance of products.
Special requirements relating to shape and distribution of beta phase aggregates are subject to agreement
between purchaser and supplier.
NOTE 2 The as-supplied forging stock in alloys other than CuZn21Si3P (CW724R) may not necessarily meet
this requirement unless suitably heat treated as described in 8.3. The test is intended to demonstrate that forgings
produced from the stock are capable of being processed so as to pass the test requirement.
6.4 Dimensions and tolerances
6.4.1 Diameter
Diameter at any point shall conform to the tolerances given in Table 10 for class A or class B, as
appropriate to the order [see Clause 5 list entry g)].
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6.4.2 Deviation from circular form
For round rod the deviation from circular form (see 3.2) shall not exceed half the range of the tolerance
on diameter given in Table 10.
6.4.3 Length
The forging stock shall have length and length tolerances agreed between customer and supplier.
6.4.4 Straightness
For round rod of diameter from 10 mm up to and including 50 mm 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 (see Figure 1), shall conform to the tolerances given in
Table 11.
Dimensions in millimetres
Key
h depht of arc in any lenght l of 1000
1 1
h2 depht of arc in any lenght l2 of 400
Figure 1 — Measurement of straightness
6.5 Surface quality
The surfaces shall be clean and smooth. The forging stock may have a superficial film of drawing
lubricant or, if annealed or thermally stress relieved, a superficial, dull, iridescent oxide film, securely
adherent on the surfaces.
Discontinuous irregularities on the surfaces of the forging stock are permitted if they are within the
dimensional tolerances.
Since surface discontinuities (cracks, overlapping, scale, isolated pores, pits, grooves, etc.) cannot be
completely avoided during manufacturing (hot and cold formation, heat treatments, handling and
storage) and since they are retained when drawing, agreements shall be made regarding surface
quality.
If eddy current test is requested, the test method given in EN 17263 shall be applied using reference
standard according to Table 12.
The sensitivity is to be set in such a way that the smallest signal of the borehole(s) just exceeds the
response threshold (acceptance level).
If single rods are tested unexamined ends exist.
Other surface control methods can be used by agreement between purchaser and supplier.
Special requirements (e.g. pickling, degreasing, etc.) relating to the surface quality shall be agreed
between the purchaser and the supplier [see Clause 5, list entry i)].
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6.6 Internal inclusion
Freedom of internal inclusions cannot be ensured in any copper alloys.
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 12. 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.
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.
In cases of dispute concerning the results of analysis, the full procedure given in ISO 1811-2 should be
followed.
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 e.g. as conforming to EN ISO 9001.
7.3 Hardness and dezincification resistance tests
The sampling rate shall be in accordance with Table 12. Sampling units shall be selected from the
finished products. The test samples shall be cut from the sampling units and may require heat
treatment before testing. 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.
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 concerning the results of analysis, methods of analysis to
be used shall be agreed between the disputing parties. For expression of results, the rounding rules
given in 8.5 shall be used.
8.2 Hardness test
8.2.1 General
When a hardness test is to be carried out the test samples shall be prepared in accordance with 8.2.2
and the test shall be carried out in accordance with 8.2.3.
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8.2.2 Preparation of samples
Test samples obtained in accordance with 7.3 shall be prepared directly from forging stock.
8.2.3 Procedure for testing
Hardness shall be determined on test pieces cut from the test sample prepared in accordance with 8.2.2.
The test shall be carried out in accordance with EN ISO 6506-1 and the impression/indentation made
on the cross-section of the test piece mid-way between the
...
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