EN 12449:2023
(Main)Copper and copper alloys - Seamless, round tubes for general purposes
Copper and copper alloys - Seamless, round tubes for general purposes
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.
Kupfer und Kupferlegierungen - Nahtlose Rundrohre zur allgemeinen Verwendung
Dieses Dokument legt die Zusammensetzung, die Anforderungen an die Eigenschaften, Grenzabmaße und Formtoleranzen für nahtlose, gezogene Rundrohre zur allgemeinen Verwendung aus Kupfer und Kupferlegierungen fest. Es ist anwendbar für den Maßbereich von 3 mm bis 450 mm Außendurchmesser und eine Wanddicke von 0,3 mm bis 20 mm.
Die Probenahme und die Prüfverfahren zur Feststellung der Übereinstimmung mit den Anforderungen dieses Dokuments sind ebenfalls festgelegt.
ANMERKUNG Rohre aus bestimmten Legierungen mit einem Außendurchmesser kleiner als 80 mm und/oder einer Wanddicke größer als 2 mm werden sehr häufig für die spanende Bearbeitung eingesetzt. Diese Rohre sind in EN 12168 genormt.
Cuivre et alliages de cuivre - Tubes ronds sans soudure pour usages généraux
Le présent document spécifie la composition, les caractéristiques et les tolérances de dimensions et de formes des tubes ronds sans soudure en cuivre et alliages de cuivre pour usages généraux fournis dans une plage de diamètre extérieur de 3 mm à 450 mm compris, et d’épaisseur de paroi de 0,3 mm à 20 mm compris.
Les modes opératoires d’échantillonnage et les méthodes d’essai pour la vérification de la conformité aux exigences du présent document sont également spécifiés.
NOTE Les tubes ayant un diamètre extérieur de moins de 80 mm et/ou une épaisseur de paroi supérieure à 2 mm dans certains alliages sont le plus souvent utilisés pour le décolletage tel que spécifié dans l’EN 12168.
Baker in bakrove zlitine - Nevarjene cevi z okroglim prerezom za splošno uporabo
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 12449:2023
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
SIST EN 12449:2023 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 12449:2023
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SIST EN 12449:2023
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.
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SIST EN 12449:2023
EN 12449:2023 (E)
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
2
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SIST EN 12449:2023
EN 12449:2023 (E)
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.
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EN 12449:2023 (E)
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.
4
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SIST EN 12449:2023
EN 12449:2023 (E)
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
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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 symbol or number (see Table 1 to Table 8).
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 document 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.
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4.2 Material condition
For the purposes of this document, 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;
NOTE 1 Products in the H. condition can be specified to Vickers or Brinell hardness. The
material condition designation H. is the same for both hardness test methods.
S (suffix) material condition for a product which is stress relieved.
NOTE 2 Products in the M, R. or H. condition can 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 (see 6.5.2).
Exact conversion between the 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 document.
The product designation for products to this document shall consist of:
— denomination (Tube);
— number of this document (EN 12449);
— material designation, either symbol or number (see Table 1 to Table 8);
— material condition designation (see Table 9 to Table 15);
— nominal cross-sectional dimensions, either outside diameter (OD) and wall thickness or inside
diameter (ID) and wall thickness (see 6.3).
The derivation of a product designation is shown in EXAMPLE 1.
EXAMPLE 1 Tube conforming to this document, in material designated either CuNi10Fe1Mn or CW352H, in
material condition H075, nominal outside diameter 22 mm, nominal wall thickness 2,0 mm, will be designated as
follows:
7
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EXAMPLE 2 Tube conforming to this document, in material designated either CuZn37 or CW508L, in material
condition M, stress relieved, nominal inside diameter 30 mm, nominal wall thickness 2,5 mm, will be designated as
follows:
Tube EN 12449 — CuZn37 — MS — ID30 × 2,5
or
Tube EN 12449 — CW508L — MS — ID30 × 2,5
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 (number of pieces, length or mass);
b) denomination (Tube);
c) number of this document (i.e. EN 12449);
d) material designation (see Table 1 to Table 8);
e) material condition designation (see 4.2 and Table 9 to Table 15) if it is other than M;
f) nominal cross-sectional dimensions [either outside diameter (OD) and wall thickness or inside
diameter (ID) and wall thickness] (see 6.3);
g) length, either nominal together with tolerance required, or fixed length (see 6.3.4).
It is advised that the product designation, as described in 4.3, is used for items b) to f).
In addition, the purchaser shall also state on the enquiry and order any of the following, if required:
h) whether the tubes are for sea water application (see Table 3). If so, the composition limits required;
i) test method to be used for the measurement of hardness, i.e. Vickers or Brinell (see 8.3);
j) where dimensional tolerances are to be applied, if not on the outside diameter and wall thickness
(see 6.3.1);
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EN 12449:2023 (E)
k) whether the tubes are required to pass a drift expanding test (see 6.5.1);
l) whether the tubes are required to pass a stress corrosion resistance test (see 6.5.2);
m) whether the tubes are required to meet a grain size requirement (see 6.5.3); if so, the grain size limits
required;
It is advised to agree the grain size limits between the purchaser and the supplier.
n) whether the tubes are required to pass freedom from defects tests (see 6.5.4); 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, and the
acceptance criteria if they are not to be left to the discretion of the supplier;
o) whether deburring is required (see 6.4);
p) whether special surface quality is required (see 6.4);
q) whether a declaration of conformity is required (see 9.1);
r) whether an inspection document is required, and if so, which type (see 9.2);
s) whether there are any special requirements for marking, packaging or labelling (see Clause 10).
EXAMPLE Ordering details for 1 000 m tube conforming to EN 12449, in material designated either
CuNi10Fe1Mn or CW352H, in material condition H075, nominal outside diameter 22 mm, nominal wall thickness
2,0 mm, in 3 000 mm fixed lengths:
1 000 m Tube EN 12449 — CuNi10Fe1Mn — H075 — OD22 × 2,0
— fixed length 3 000 mm
or
1 000 m Tube EN 12449 — CW352H — H075 — OD22 × 2,0
— fixed length 3 000 mm
6 Requirements
6.1 Composition
The composition shall conform to the requirements for the appropriate material given in Table 1 to
Table 8.
6.2 Mechanical properties
The properties shall conform to the appropriate requirements given in Table 9 to Table 15. The tests shall
be carried out in accordance with either 8.2 (tensile test) or 8.3 (hardness test).
Products in stress relieved condition shall conform to the same mechanical property requirements as for
non stress relieved material.
6.3 Dimensions and tolerances
6.3.1 General
The geometrical properties of the tubes are defined by outside diameter or inside diameter, wall
thickness and length.
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Normally, tolerances for cross-sectional dimensions are applied on the outside diameter (see 6.3.2) and
wall thickness (see 6.3.3) but other possibilities may be agreed between the purchaser and the supplier
at the time of the enquiry and order [see Clause 5, list entry j)].
Normally, tubes are supplied in lengths with tolerances agreed between the purchaser and the supplier
at the time of the enquiry and order [see Clause 5, list entry g)] but tubes may be ordered as “fixed
lengths” (see 6.3.4).
6.3.2 Outside or inside diameter
The diameter of the tubes shall conform to the tolerances given in Table 17.
6.3.3 Wall thickness
The wall thickness, measured at any point, shall conform to the tolerances given in Table 18.
6.3.4 Fixed lengths
Tubes in straight lengths ordered as “fixed lengths” shall conform to the tolerances given in Table 19.
Tubes in coiled form ordered as “fixed lengths” shall conform to the tolerances given in Table 20.
6.3.5 Tolerances on form
6.3.5.1 Deviation from circular form
For tubes in straight lengths the deviation from circular form is included in the tolerances on diameter
given in Table 17.
For coiled tubes with wall thicknesses up to and including 2 mm, except for tubes with ratios of outside
diameter to wall thickness greater than 20, the deviation from circular form is included in the tolerances
on diameter given in Table 21.
6.3.5.2 Straightness
Tubes in straight lengths, except for those in the annealed condition (see Table 9 to Table 15) or with
outside diameter equal to or less than 10 mm, shall conform to the tolerances given in Table 22.
6.4 Surface quality
The external and internal surfaces shall be clean and smooth.
The tubes may have a superficial film of drawing lubricant or, if annealed or thermally stress relieved, a
superficial, dull, iridescent oxide film, securely adherent on both the internal and external surfaces.
Discontinuous irregularities on the external and internal surfaces of the tubes are permitted if they are
within the dimensional tolerances.
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 p)].
If deburring of the cut ends of the tubes is required it shall be agreed between the purchaser and the
supplier [see Clause 5, list entry o)].
6.5 Technological requirements
6.5.1 Drift expanding
No crack shall be visible to the unaided eye, corrected for normal vision if necessary, when tubes in the
annealed condition and outside diameter up to and including 100 mm and when agreed between the
purchaser and the supplier [see Clause 5, list entry k)] are tested in accordance with 8.4.1.
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6.5.2 Residual stress level
No crack shall be visible to the unaided eye, corrected for normal vision if necessary, when tubes in the
stress relieved condition and when requested by the purchaser [see Clause 5, list entry l)] are tested in
accordance with 8.4.2.
6.5.3 Grain size
The average grain size of tubes in the annealed condition, when requested by the purchaser, [see Clause 5,
list entry m)] shall conform to the limits agreed between the purchaser and the supplier. The test shall
be carried out in accordance with 8.4.3.
6.5.4 Freedom from defects
When requested by the purchaser [see Clause 5, list entry n)] tubes shall be tested in accordance with 8.5
and the acceptance criteria, unless otherwise agreed between the purchaser and the supplier, shall be at
the discretion of the supplier.
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 23. 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 management system of the
manufacturer is certified, e.g. as conforming to EN ISO 9001.
7.3 Mechanical tests and stress corrosion resistance test
The sampling rate shall be in accordance with Table 23. 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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EN 12449:2023 (E)
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 chemical or
spectrographic according to EN or ISO standards in force. For expression of results, the rounding rules
given in 8.7 shall be used.
In cases of dispute concerning the results of analysis, the method of analysis to be used should be
chemical.
8.2 Tensile test
The tensile properties shall be determined in accordance with EN ISO 6892-1 on the test pieces obtained
in accordance with 7.3.
8.3 Hardness test
Hardness shall be determined on test pieces prepared from the test samples obtained in accordance with
7.3. The test shall be carried out in accordance with either EN ISO 6506-1 or EN ISO 6507-1 and the
impression/indentation made on the outside surface, unless otherwise agreed. For the Brinell test
2
according to EN ISO 6506-1, a 0,102 F/D ratio of 10 shall be used.
8.4 Technological tests
8.4.1 Drift expanding test
When required, the drift expanding test shall be carried out in accordance with EN ISO 8493. The outside
diameter of the tube end shall be expanded by 30 % using a conical mandrel with an angle of 45°.
8.4.2 Stress corrosion resistance test
When required, the test method given in either EN ISO 196 or ISO 6957 shall be used on the test pieces
prepared from the test samples obtained in accordance with 7.3. The choice of which of these tests is used
shall be at the discretion of the supplier.
8.4.3 Average grain size determination
When required, the estimation of average grain size shall be carried out in accordance with EN ISO 2624
or EN 16090.
8.5 Freedom from defects tests
When required, each tube shall be subjected to one of the following tests:
— Eddy current test for detection of local defects, in accordance with EN 1971-1 or EN 1971-2;
— hydrostatic test;
— pneumatic test.
If not otherwise agreed between the purchaser and the supplier, which of the test methods to be used
and the method of testing shall be at the discretion of the manufacturer.
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8.6 Retests
8.6.1 Analysis, tensile, hardness, drift expanding and grain size tests
If there is a failure of one, or more than one, of the tests in 8.1, 8.2, 8.3, 8.4.1 or 8.4.3, two test samples
from the same inspection lot shall be permitted to be selected for retesting the failed prope
...
SLOVENSKI STANDARD
oSIST prEN 12449:2022
01-april-2022
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: prEN 12449
ICS:
23.040.15 Cevi iz neželeznih kovin Non-ferrous metal pipes
77.150.30 Bakreni izdelki Copper products
oSIST prEN 12449:2022 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN 12449:2022
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oSIST prEN 12449:2022
DRAFT
EUROPEAN STANDARD
prEN 12449
NORME EUROPÉENNE
EUROPÄISCHE NORM
February 2022
ICS 23.040.15; 77.120.30 Will supersede 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 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 12449:2022 E
worldwide for CEN national Members.
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Contents Page
European foreword . 4
Introduction . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 7
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 . 8
4.3 Product . 8
5 Ordering information . 9
6 Requirements . 10
6.1 Composition . 10
6.2 Mechanical properties . 10
6.3 Dimensions and tolerances . 11
6.3.1 General. 11
6.3.2 Outside or inside diameter . 11
6.3.3 Wall thickness . 11
6.3.4 Fixed lengths . 11
6.3.5 Tolerances on form . 11
6.4 Surface quality . 11
6.5 Technological requirements . 12
6.5.1 Drift expanding . 12
6.5.2 Residual stress level . 12
6.5.3 Grain size . 12
6.5.4 Freedom from defects . 12
7 Sampling . 12
7.1 General. 12
7.2 Analysis . 12
7.3 Mechanical tests and stress corrosion resistance test . 13
8 Test methods . 13
8.1 Analysis . 13
8.2 Tensile test . 13
8.3 Hardness test . 13
8.4 Technological tests . 13
8.4.1 Drift expanding test . 13
8.4.2 Stress corrosion resistance test . 13
8.4.3 Average grain size determination . 13
8.5 Freedom from defects tests . 14
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8.6 Retests . 14
8.6.1 Analysis, tensile, hardness, drift expanding and grain size tests . 14
8.6.2 Stress corrosion resistance test . 14
8.7 Rounding of results . 14
9 Declaration of conformity and inspection documentation . 15
9.1 Declaration of conformity . 15
9.2 Inspection documentation . 15
10 Marking, packaging, labelling . 15
Bibliography . 50
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European foreword
This document (prEN 12449:2022) 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 12449:2016+A1:2019.
In comparison with EN 12449:2016+A1:2019, the following changes were made:
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.
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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 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 he is willing to negotiate licenses under
reasonable and not-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 (http://www.cencenelec.eu/ipr/Patents/PatentDeclaration/Pages/default.aspx)
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.
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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 1190-1, Copper and copper alloys — Code of designation — Part 1: Designation of materials
ISO 6957, Copper alloys — Ammonia test for stress corrosion resistance
ISO 80000-1:2009, Quantities and units — Part 1: General
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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:
• ISO Online browsing platform: available at http://www.iso.org/obp
• IEC Electropedia: available at http://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 symbol or number (see Table 1 to Table 8)
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 document 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.
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4.2 Material condition
For the purposes of this document, 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.
NOTE 1 Products in the H. condition can be specified to Vickers or Brinell hardness.
The material condition designation H. is the same for both hardness test methods.
S material condition for a product which is stress relieved.
(suffix)
NOTE 2 Products in the M, R. or H. condition can 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 (see 6.5.2).
Exact conversion between the 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 document.
The product designation for products to this document shall consist of:
• denomination (Tube);
• number of this European Standard (EN 12449);
• material designation, either symbol or number (see Tables 1 to 8);
• material condition designation (see Tables 9 to 15);
• nominal cross-sectional dimensions, either outside diameter (OD) and wall thickness or inside
diameter (ID) and wall thickness (see 6.3).
The derivation of a product designation is shown in Example 1.
EXAMPLE 1 Tube conforming to this document, in material designated either CuNi10Fe1Mn or CW352H, in
material condition H075, nominal outside diameter 22 mm, nominal wall thickness 2,0 mm, will be designated as
follows:
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EXAMPLE 2 Tube conforming to this document, in material designated either CuZn37 or CW508L, in material
condition M, stress relieved, nominal inside diameter 30 mm, nominal wall thickness 2,5 mm, will be designated as
follows:
Tube EN 12449 — CuZn37 — MS — ID30 × 2,5
or
Tube EN 12449 — CW508L — MS — ID30 × 2,5
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 (number of pieces, length or mass);
b) denomination (Tube);
c) number of this European Standard (EN 12449);
d) material designation (see Table 1 to Table 8);
e) material condition designation (see 4.2 and Table 9 to Table 15) if it is other than M;
f) nominal cross-sectional dimensions [either outside diameter (OD) and wall thickness or inside
diameter (ID) and wall thickness] (see 6.3);
g) length, either nominal together with tolerance required, or fixed length (see 6.3.4).
NOTE 1 It is advised that the product designation, as described in 4.3, is used for items b) to f).
In addition, the purchaser shall also state on the enquiry and order any of the following, if required:
h) whether the tubes are for sea water application (see Table 3). If so, the composition limits required;
i) test method to be used for the measurement of hardness, i.e. Vickers or Brinell (see 8.3);
j) where dimensional tolerances are to be applied, if not on the outside diameter and wall thickness
(see 6.3.1);
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k) whether the tubes are required to pass a drift expanding test (see 6.5.1);
l) whether the tubes are required to pass a stress corrosion resistance test (see 6.5.2);
m) whether the tubes are required to meet a grain size requirement (see 6.5.3); if so, the grain size limits
required;
NOTE 2 It is advised to agree the grain size limits between the purchaser and the supplier.
n) whether the tubes are required to pass freedom from defects tests (see 6.5.4); 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, and the
acceptance criteria if they are not to be left to the discretion of the supplier;
o) whether deburring is required (see 6.4);
p) whether special surface quality is required (see 6.4);
q) whether a declaration of conformity is required (see 9.1);
r) whether an inspection document is required, and if so, which type (see 9.2);
s) whether there are any special requirements for marking, packaging or labelling (see Clause 10).
EXAMPLE Ordering details for 1 000 m tube conforming to EN 12449, in material designated either
CuNi10Fe1Mn or CW352H, in material condition H075, nominal outside diameter 22 mm, nominal wall thickness
2,0 mm, in 3 000 mm fixed lengths:
1 000 m Tube EN 12449 — CuNi10Fe1Mn — H075 — OD22 × 2,0
— fixed length 3 000 mm
or
1 000 m Tube EN 12449 — CW352H — H075 — OD22 × 2,0
— fixed length 3 000 mm
6 Requirements
6.1 Composition
The composition shall conform to the requirements for the appropriate material given in Table 1 to
Table 8.
6.2 Mechanical properties
The properties shall conform to the appropriate requirements given in Table 9 to Table 15. The tests shall
be carried out in accordance with either 8.2 (tensile test) or 8.3 (hardness test).
Products in stress relieved condition shall conform to the same mechanical property requirements as for
non stress relieved material.
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6.3 Dimensions and tolerances
6.3.1 General
The geometrical properties of the tubes are defined by outside diameter or inside diameter, wall
thickness and length.
Normally, tolerances for cross-sectional dimensions are applied on the outside diameter (see 6.3.2) and
wall thickness (see 6.3.3) but other possibilities may be agreed between the purchaser and the supplier
at the time of the enquiry and order [see Clause 5, list entry j)].
Normally, tubes are supplied in lengths with tolerances agreed between the purchaser and the supplier
at the time of the enquiry and order [see Clause 5, list entry g)] but tubes may be ordered as “fixed
lengths” (see 6.3.4).
6.3.2 Outside or inside diameter
The diameter of the tubes shall conform to the tolerances given in Table 17.
6.3.3 Wall thickness
The wall thickness, measured at any point, shall conform to the tolerances given in Table 18.
6.3.4 Fixed lengths
Tubes in straight lengths ordered as “fixed lengths” shall conform to the tolerances given in Table 19.
Tubes in coiled form ordered as “fixed lengths” shall conform to the tolerances given in Table 20.
6.3.5 Tolerances on form
6.3.5.1 Deviation from circular form
For tubes in straight lengths the deviation from circular form is included in the tolerances on diameter
given in Table 17.
For coiled tubes with wall thicknesses up to and including 2 mm, except for tubes with ratios of outside
diameter to wall thickness greater than 20, the deviation from circular form is included in the tolerances
on diameter given in Table 21.
6.3.5.2 Straightness
Tubes in straight lengths, except for those in the annealed condition (see Table 9 to Table 15) or with
outside diameter equal to or less than 10 mm, shall conform to the tolerances given in Table 22.
6.4 Surface quality
The external and internal surfaces shall be clean and smooth.
The tubes may have a superficial film of drawing lubricant or, if annealed or thermally stress relieved, a
superficial, dull, iridescent oxide film, securely adherent on both the internal and external surfaces.
Discontinuous irregularities on the external and internal surfaces of the tubes are permitted if they are
within the dimensional tolerances.
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 p)].
If deburring of the cut ends of the tubes is required it shall be agreed between the purchaser and the
supplier [see Clause 5, list entry o)].
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6.5 Technological requirements
6.5.1 Drift expanding
No crack shall be visible to the unaided eye, corrected for normal vision if necessary, when tubes in the
annealed condition and outside diameter up to and including 100 mm and when agreed between the
purchaser and the supplier [see Clause 5, list entry k)] are tested in accordance with 8.4.1.
6.5.2 Residual stress level
No crack shall be visible to the unaided eye, corrected for normal vision if necessary, when tubes in the
stress relieved condition and when requested by the purchaser [see Clause 5, list entry l)] are tested in
accordance with 8.4.2.
6.5.3 Grain size
The average grain size of tubes in the annealed condition, when requested by the purchaser, [see Clause 5,
list entry m)] shall conform to the limits agreed between the purchaser and the supplier. The test shall
be carried out in accordance with 8.4.3.
6.5.4 Freedom from defects
When requested by the purchaser [see Clause 5, list entry n)] tubes shall be tested in accordance with 8.5
and the acceptance criteria, unless otherwise agreed between the purchaser and the supplier, shall be at
the discretion of the supplier.
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 23. 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 management system of the
manufacturer is certified, e.g. as conforming to EN ISO 9001.
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7.3 Mechanical tests and stress corrosion resistance test
The sampling rate shall be in accordance with Table 23. 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.
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 chemical or
spectrographic according to EN or ISO standards in force. For expression of results, the rounding rules
given in 8.7 shall be used.
In cases of dispute concerning the results of analysis, the method of analysis to be used should be
chemical.
8.2 Tensile test
The tensile properties shall be determined in accordance with EN ISO 6892-1 on the test pieces obtained
in accordance with 7.3.
8.3 Hardness test
Hardness shall be determined on test pieces prepared from the test samples obtained in accordance with
...
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