EN 12449:2023

SLOVENSKI STANDARD
01-september-2023
Baker in bakrove zlitine - Nevarjene cevi z okroglim prerezom za splošno uporabo
Copper and copper alloys - Seamless, round tubes for general purposes
Kupfer und Kupferlegierungen - Nahtlose Rundrohre zur allgemeinen Verwendung
Cuivre et alliages de cuivre - Tubes ronds sans soudure pour usages généraux
Ta slovenski standard je istoveten z: EN 12449:2023
ICS:
23.040.15 Cevi iz neželeznih kovin Non-ferrous metal pipes
77.150.30 Bakreni izdelki Copper products
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 12449
EUROPEAN STANDARD
NORME EUROPÉENNE
June 2023
EUROPÄISCHE NORM
ICS 23.040.15; 77.120.30 Supersedes EN 12449:2016+A1:2019
English Version
Copper and copper alloys - Seamless, round tubes for
general purposes
Cuivre et alliages de cuivre - Tubes ronds sans soudure Kupfer und Kupferlegierungen - Nahtlose Rundrohre
pour usages généraux zur allgemeinen Verwendung
This European Standard was approved by CEN on 13 February 2023.

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, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2023 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 12449:2023 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 6
4 Designations . 6
4.1 Material . 6
4.2 Material condition . 7
4.3 Product . 7
5 Ordering information . 8
6 Requirements . 9
6.1 Composition . 9
6.2 Mechanical properties . 9
6.3 Dimensions and tolerances . 9
6.4 Surface quality . 10
6.5 Technological requirements . 10
7 Sampling . 11
7.1 General. 11
7.2 Analysis . 11
7.3 Mechanical tests and stress corrosion resistance test . 11
8 Test methods . 12
8.1 Analysis . 12
8.2 Tensile test . 12
8.3 Hardness test . 12
8.4 Technological tests . 12
8.5 Freedom from defects tests . 12
8.6 Retests . 13
8.7 Rounding of results . 13
9 Declaration of conformity and inspection documentation. 13
9.1 Declaration of conformity . 13
9.2 Inspection documentation. 13
10 Marking, packaging, labelling . 14
Bibliography . 51

European foreword
This document (EN 12449:2023) 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 2023, and conflicting national standards shall
be withdrawn at the latest by December 2023.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 12449:2016+A1:2019.
The main changes compared to the previous edition are listed below:
a) update of normative references;
b) addition of the material CuCr1Zr (CW106C) in Table 2 and Table 9;
c) modification of the lead content for CuZn39Pb3 (CW614N) and CuZn40Pb2 (CW617N) in Table 7;
d) correction of hardness values for CuSi3Zn2P (CW124C) of material conditions R650 and H170 in
Table 9;
e) modification of 9.1 “Declaration of conformity” and 9.2 “Inspection documentation;
f) editorial amendments.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia,
Cyprus, Czech Republic, Denmark, Estonia, 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, Türkiye and the United
Kingdom.
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
CuSi3Zn2P (CW124C) 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 they are 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.
For CuSi3Zn2P (CW124C) information may be obtained from:
VIEGA GmbH and Co. KG
Ennester Weg 9
57439 Attendorn
GERMANY
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
(https://www.cencenelec.eu/european-standardization/ipr-and-patents/patents/). Users are
encouraged to consult the lists for the most up to date information concerning patents.
1 Scope
This document specifies the composition, property requirements and tolerances on dimensions and form
for seamless round drawn copper and copper alloy tubes for general purposes supplied in the size range
from 3 mm up to and including 450 mm outside diameter and from 0,3 mm up to and including 20 mm
wall thickness.
The sampling procedures and the methods of test for verification of conformity to the requirements of
this document are also specified.
NOTE Tubes having an outside diameter less than 80 mm and/or a wall thickness greater than 2 mm in certain
alloys are most frequently used for free machining purposes which are specified in EN 12168.
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 1971-1, Copper and copper alloys - Eddy current test for measuring defects on seamless round copper
and copper alloy tubes - Part 1: Test with an encircling test coil on the outer surface
EN 1971-2, Copper and copper alloys - Eddy current test for measuring defects on seamless round copper
and copper alloy tubes - Part 2: Test with an internal probe on the inner surface
EN 1976, Copper and copper alloys - Cast unwrought copper products
EN 16090, Copper and copper alloys - Estimation of average grain size by ultrasound
EN ISO 196, Wrought copper and copper alloys - Detection of residual stress - Mercury(I) nitrate test
(ISO 196)
EN ISO 2624, Copper and copper alloys - Estimation of average grain size (ISO 2624)
EN ISO 6506-1, Metallic materials - Brinell hardness test - Part 1: Test method (ISO 6506-1)
EN ISO 6507-1, Metallic materials - Vickers hardness test - Part 1: Test method (ISO 6507-1)
EN ISO 6892-1, Metallic materials - Tensile testing - Part 1: Method of test at room temperature
(ISO 6892-1)
EN ISO 8493, Metallic materials - Tube - Drift-expanding test (ISO 8493)
ISO 6957, Copper alloys — Ammonia test for stress corrosion resistance
ISO 80000-1:2009, Quantities and units — Part 1: General
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp
— IEC Electropedia: available at https://www.electropedia.org/
3.1
seamless round tube
hollow semi-finished product, circular in cross-section, having a uniform wall thickness, which at all
stages of production has a continuous periphery
3.2
mean diameter
arithmetical mean of the maximum and minimum outside diameters through the same cross-section of
the tube
[SOURCE: EN 1057:2006+A1:2010, 3.5]
3.3
deviation from circular form
difference between the maximum and minimum outside diameters measured at any one cross-section of
the tube
[SOURCE: EN 1057:2006+A1:2010, 3.6]
4 Designations
4.1 Material
4.1.1 General
The material is designated either by sym
...