EN 12449:2016+A1:2019
(Main)Copper and copper alloys - Seamless, round tubes for general purposes
Copper and copper alloys - Seamless, round tubes for general purposes
This European Standard 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 European Standard 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
Diese Europäische Norm legt die Zusammensetzung, die Anforderungen an die Eigenschaften, Grenzabmaße und Formtoleranzen für nahtlose, gezogene Rundrohre zur allgemeinen Verwendung aus Kupfer und Kupferlegierungen fest. Sie gilt für den Maßbereich von 3 mm bis 450 mm Außendurchmesser und eine Wanddicke von 0,3 mm bis 20 mm.
Die Probenentnahme und die Prüfverfahren zur Feststellung der Übereinstimmung mit den Anforderungen dieser Europäischen Norm 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
La présente Norme européenne 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 de la présente Norme européenne 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
Ta evropski standard določa sestavo, zahteve glede značilnosti ter odstopanja glede mer in oblike za nevarjene cevi z okroglim prerezom iz vlečenega bakra in bakrovih zlitin za splošno uporabo, ki se dobavljajo z zunanjim premerom velikosti od 3 mm do vključno 450 mm in debelino stene od 0,3 mm do vključno 20 mm.
Določeni so tudi postopki vzorčenja in preskusne metode za preverjanje skladnosti z zahtevami tega evropskega standarda.
OPOMBA: Cevi iz določenih zlitin z zunanjim premerom, manjšim od 80 mm, in/ali debelino stene, večjo od 2 mm, se najpogosteje uporabljajo za namene brez strojne uporabe, ki so določeni v standardu EN 12168.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-december-2019
Nadomešča:
SIST EN 12449:2016
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 12449:2016+A1:2019
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 12449:2016+A1
EUROPEAN STANDARD
NORME EUROPÉENNE
October 2019
EUROPÄISCHE NORM
ICS 23.040.15; 77.120.30 Supersedes EN 12449:2016
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 28 February 2016 and includes Amendment 1 approved by CEN on 7 August
2019.
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, Turkey 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
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 12449:2016+A1:2019 E
worldwide for CEN national Members.
Contents Page
European foreword . 4
Introduction . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 8
4 Designations. 8
4.1 Material . 8
4.1.1 General . 8
4.1.2 Symbol . 8
4.1.3 Number . 8
4.2 Material condition . 8
4.3 Product . 9
5 Ordering information . 10
6 Requirements . 11
6.1 Composition . 11
6.2 Mechanical properties . 11
6.3 Dimensions and tolerances . 11
6.3.1 General . 11
6.3.2 Outside or inside diameter . 11
6.3.3 Wall thickness . 12
6.3.4 Fixed lengths . 12
6.3.5 Tolerances on form . 12
6.4 Surface quality. 12
6.5 Technological requirements . 12
6.5.1 Drift expanding . 12
6.5.2 Residual stress level . 12
6.5.3 Grain size . 13
6.5.4 Freedom from defects . 13
7 Sampling . 13
7.1 General . 13
7.2 Analysis . 13
7.3 Mechanical tests and stress corrosion resistance test . 13
8 Test methods . 13
8.1 Analysis . 13
8.2 Tensile test . 14
8.3 Hardness test . 14
8.4 Technological tests . 14
8.4.1 Drift expanding test . 14
8.4.2 Stress corrosion resistance test . 14
8.4.3 Average grain size determination . 14
8.5 Freedom from defects tests . 14
8.6 Retests . 14
8.6.1 Analysis, tensile, hardness, drift expanding and grain size tests . 14
8.6.2 Stress corrosion resistance test . 15
8.7 Rounding of results . 15
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 . 49
Figures
Figure 1 — Measurement of straightness . 47
Tables
Table 1 — Composition of copper . 16
Table 2 — Composition of low alloyed copper alloys . 17
Table 3 — Composition of copper-nickel alloys . 17
Table 4 — Composition of copper-nickel-zinc alloys . 18
Table 5 — Composition of copper-tin alloys . 18
Table 6 — Composition of binary copper-zinc alloys . 19
Table 7 — Composition of copper-zinc-lead alloys . 20
Table 8 — Composition of complex copper-zinc alloys. 21
Table 9 — Mechanical properties of copper and low alloyed copper alloys . 22
Table 10 — Mechanical properties of copper-nickel alloys . 26
Table 11 — Mechanical properties of copper-nickel-zinc alloys . 27
Table 12 — Mechanical properties of copper-tin alloys . 28
Table 13 — Mechanical properties of binary copper-zinc alloys . 31
Table 14 — Mechanical properties of copper-zinc-lead alloys . 36
Table 15 — Mechanical properties of complex copper-zinc alloys . 40
Table 16 — Minimal elongation values for R250 (half hard) material condition tubes . 45
Table 17 — Tolerances on diameter . 45
Table 18 — Tolerances on wall thickness . 46
Table 19 — Tolerances on fixed lengths, tubes in straight lengths . 46
Table 20 — Tolerances on fixed lengths, tube in coils (not level wound) . 46
Table 21 — Tolerances on diameter including deviation from circular form, tube in coils . 47
Table 22 — Tolerances on straightness. 47
Table 23 — Sampling rate . 48
European foreword
This document (EN 12449:2016+A1:2019) 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 April 2020 and conflicting national standards shall be
withdrawn at the latest by April 2020.
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 includes Amendment 1 approved by CEN on 7 August 2019.
This document supersedes !EN 12449:2016".
The start and finish of text introduced or altered by amendment is indicated in the text by tags !".
In comparison with EN 12449:2012, the following significant technical changes were made:
a) Addition of the new material CuFe0,1Sn0,1P (CW125C);
b) Modification of the elongation values for Cu-DHP (CW024A) in material condition R250 including
new Table 16;
c) Modification of iron and tin content for CuZn37Pb1 (CW605N) from 0,2 % to 0,3 % in Table 7;
d) Replacement of the material number CW121C by CW124C for CuSi3Zn2P.
Within its programme of work, Technical Committee CEN/TC 133 requested CEN/TC 133/WG 3
"Copper tubes (installation and industrial)" to revise the following standard:
— EN 12449:2012, Copper and copper alloys — Seamless, round copper tubes for general purposes.
This is one of a series of European Standards for copper and copper alloy tubes. Other products are
specified as follows:
— EN 1057, Copper and copper alloys — Seamless, round copper tubes for water and gas in sanitary and
heating applications;
— EN 12450, Copper and copper alloys — Seamless, round copper capillary tubes;
— EN 12451, Copper and copper alloys — Seamless, round tubes for heat exchangers;
— EN 12452, Copper and copper alloys — Rolled, finned, seamless tubes for heat exchangers;
— EN 12735-1, Copper and copper alloys — Seamless, round tubes for air conditioning and refrigeration
— Part 1: Tubes for piping systems;
— EN 12735-2, Copper and copper alloys — Seamless, round tubes for air conditioning and refrigeration
— Part 2: Tubes for equipment;
— EN 13348, Copper and copper alloys — Seamless, round copper tubes for medical gases or vacuum;
— EN 13349, Copper and copper alloys — Pre-insulated copper tubes with solid covering;
— EN 13600, Copper and copper alloys — Seamless copper tubes for electrical purposes.
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, Turkey 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) and 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 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 & Co. KG
Ennester Weg 9
57439 Attendorn
GERMANY
— For CuZn21Si3P (CW724R) information may be obtained from:
Wieland-Werke AG
Graf-Arco-Straße 36
89079 Ulm
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 on-line lists of patents relevant to their standards. Users are encouraged to consult the lists for
the most up to date information concerning patents.
1 Scope
This European Standard 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 European Standard 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, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
EN 1655, Copper and copper alloys - Declarations of conformity
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 10204, Metallic products - Types of inspection documents
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
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
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 Tables 1 to 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 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.
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 standard.
The product designation for products to this standard 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 standard, 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:
Tube EN 12449 — CuNi10Fe1Mn — H075 — OD22 × 2,0
or
Tube EN 12449 — CW352H — H075 — OD22 × 2,0
Denomination
Number of this European Standard
Material designation
Material condition designation
Nominal cross-sectional dimensions in millimetres
EXAMPLE 2 Tube conforming to this standard, 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 Tables 1 to 8);
e) material condition designation (see 4.2 and Tables 9 to 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);
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 Tables 1 to 8.
6.2 Mechanical properties
The properties shall conform to the appropriate requirements given in Tables 9 to 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.
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 Tables 9 to 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.
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.
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
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.
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 property
(properties). One of these test samples shall be taken from the same sampling unit as that from which
the original failed test piece was taken, unless that sampling unit is no longer available, or has been
withdrawn by the manufacturer.
If the test pieces from both test samples pass the appropriate test(s), then the inspection lot
represented shall be deemed to conform to the particular requirement(s) of this standard. If a test piece
fails a test, the inspection lot represented shall be deemed not to conform to this standard.
8.6.2 Stress corrosion resistance test
If a test piece fails the test, the inspection lot represented by the failed test piece shall be permitted to
be subjected to a stress relieving treatment. A further test sample shall then be selected in accordance
with 7.3.
If a test piece from the further test sample passes the test, the stress relieved material shall be deemed
to conform to the requirements of this standard for residual stress level and shall then be subjected to
all the other tests called for on the purchase order, except for analysis. If the test piece from the further
test sample fails the test, the stress relieved material shall be deemed not to conform to this standard.
8.7 Rounding of results
For the purpose of determining conformity to the limits specified in this standard, an observed or a
calculated value obtained from a test shall be rounded in accordance with the following procedure,
which is based upon the guidance given in Annex B of ISO 80000-1:2009. It shall be rounded in one step
to the same number of figures used to express the specified limit in this standard, except that for tensile
)
2 1
strength and 0,2 % proof strength the rounding interval shall be 10 N/mm and for elongation the
value shall be rounded to the nearest 1 %.
The following rules shall be used for rounding:
— if the figure immediately after the last figure to be retained is less than 5, the last figure to be
retained shall be kept unchanged;
— if the figure immediately after the last figure to be retained is equal to or greater than 5, the last
figure to be retained shall be increased by one.
9 Declaration of conformity and inspection documentation
9.1 Declaration of conformity
When requested by the purchaser [see Clause 5, list entry q)] and agreed with the supplier, the supplier
shall issue for the products the appropriate declaration of conformity in accordance with EN 1655.
9.2 Inspection documentation
When requested by the purchaser [see Clause 5, list entry r)] and agreed with the supplier, the supplier
shall issue for the products the appropriate inspection document in accordance with EN 10204.
10 Marking, packaging, labelling
Unless otherwise specified by the purchaser and agreed by the supplier, the marking, packaging and
labelling shall be left to the discretion of the supplier [see Clause 5, list entry s)].
1) 1 N/mm is equivalent to 1 MPa.
Table 1 — Composition of copper
Composition
% (mass fraction)
e
Density
Material designation
g/cm
other elements
a
Element Cu Bi O P Pb
(see NOTE)
Symbol Number total excluding approx.
min. 99,90 — — — — —
Cu-ETP CW004A Ag, O 8,9
b
max. — 0,000 5 0,040 — 0,005 0,03
min. 99,90 — — — — —
Cu-FRHC CW005A Ag, O 8,9
b f
max. — — 0,040 — — 0,06
min. 99,95 — — — — —
Cu-OF CW008A Ag 8,9
c
max. — 0,000 5 — — 0,005 0,03
min. 99,95 — — 0,001 — —
Cu-PHC CW020A Ag, P 8,9
c
max. — 0,000 5 — 0,006 0,005 0,03
min. 99,95 — — 0,002 — —–
Cu-HCP CW021A Ag, P 8,9
c
max. — 0,000 5 — 0,007 0,005 0,03
min. 99,90 — — 0,015 — —
Cu-DHP CW024A — 8,9
c d
max. — — — 0,040 — —
NOTE The total of other elements (than copper) is defined as the sum of Ag, As, Bi, Cd, Co, Cr, Fe, Mn, Ni, O, P, Pb, S, Sb,
Se, Si, Sn, Te and Zn, subject to the exclusion of any individual elements indicated.
a
Including silver, up to a maximum of 0,015 %.
b
Oxygen content up to 0,060 % is permitted, subject to agreement between the purchaser and the supplier.
c
The oxygen content shall be such that the material conforms to the hydrogen embrittlement requirements of EN 1976.
d
If required, the permitted total of elements, other than silver and phosphorus, should be agreed between the purchaser
and the supplier.
e
For information only.
f
Higher total impurities content is permitted, subject to agreement between the purchaser and the supplier.
Table 2 — Composition of low alloyed copper alloys
a
Composition Density
Material designation
% (mass fraction) g/cm
others
Symbol Number Element Cu Al As Fe Mn Ni P Pb Si Sn Zn
total
approx.
min. Rem. — — 2,1 — — 0,015 — — — 0,05 —
CuFe2P CW107C 8,8
max. — — — 2,6 — — 0,15 0,03 — — 0,20 0,2
min. Rem. — — — — 1,6 — — 0,4 — — —
CuNi2Si CW111C 8,8
max. — — — 0,2 0,1 2,5 — 0,02 0,8 — — 0,3
min. Rem. — — — — — 0,01 — 2,5 — 1,0 —
CuSi3Zn2P CW124C 8,6
max. — — — — 0,20 0,20 0,20 0,10 3,5 — 3,0 0,2
min. Rem. — — 0,05 — — 0,015 — — 0,05 — —
CuFe0,1Sn0,1P CW125C 8,6
max. — — — 0,20 — — 0,055 — — 0,25 — 0,2
a
For information only.
Table 3 — Composition of copper-nickel alloys
Composition
a
Material designation
Density
% (mass fraction)
g/cm
others
Symbol Number Element Cu C Co Fe Mn Ni P Pb S Sn Zn
total
approx.
c
min. Rem. — — 1,0 0,5 9,0 — — — — — —
CuNi10Fe1Mn CW352H 8,9
b c
max. — 0,05 0,1 2,0 1,0 11,0 0,02 0,02 0,05 0,03 0,5 0,2
min. Rem. — — 0,4 0,5 30,0 — — — — — —
CuNi30Mn1Fe CW354H 8,9
b
max. — 0,05 0,1 1,0 1,5 32,0 0,02 0,02 0,05 0,05 0,5 0,2
a
For information only.
b
Co max. 0,1 % is counted as Ni.
c
For sea water applications, the composition limits shall be agreed between the purchaser and the supplier [see Clause 5,
list entry h)].
Table 4 — Composition of copper-nickel-zinc alloys
a
Composition Density
Material designation
% (mass fraction) g/cm
others
Symbol Number Element Cu Fe Mn Ni Pb Sn Zn approx.
total
min. 63,0 — — 11,0 — — Rem. —
CuNi12Zn24 CW403J 8,7
max. 66,0 0,3 0,5 13,0 0,03 0,03 — 0,2
min. 60,0 — — 17,0 — — Rem. —
CuNi18Zn20 CW409J 8,7
max. 63,0 0,3 0,5 19,0 0,03 0,03 — 0,2
a
For information only.
Table 5 — Composition of copper-tin alloys
a
Composition Density
Material designation
% (mass fraction) g/cm
others
Symbol Number Element Cu Fe Ni P Pb Sn Zn approx.
total
min. Rem. — — 0,01 — 5,5 — —
CuSn6 CW452K 8,8
max. — 0,1 0,2 0,4 0,02 7,0 0,2 0,2
min. Rem. — — 0,01 — 7,5 — —
CuSn8 CW453K 8,8
max. — 0,1 0,2 0,4 0,02 8,5 0,2 0,2
min. Rem. — — 0,2 1,5 3,5 — —
CuSn4Pb2P CW455K 8,9
max. — 0,1 0,2 0,4 2,5 4,5 0,3 0,2
min. Rem. — — 0,2 — 7,5 — —
...
Frequently Asked Questions
EN 12449:2016+A1:2019 is a standard published by the European Committee for Standardization (CEN). Its full title is "Copper and copper alloys - Seamless, round tubes for general purposes". This standard covers: This European Standard 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 European Standard 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.
This European Standard 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 European Standard 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.
EN 12449:2016+A1:2019 is classified under the following ICS (International Classification for Standards) categories: 23.040.15 - Non-ferrous metal pipes; 77.120.30 - Copper and copper alloys. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 12449:2016+A1:2019 has the following relationships with other standards: It is inter standard links to EN 12449:2016/prA1, EN 12449:2016, EN 12449:2023. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
You can purchase EN 12449:2016+A1:2019 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CEN standards.
The EN 12449:2016+A1:2019 standard provides a comprehensive framework for the production and application of seamless, round copper and copper alloy tubes intended for general purposes. Covering a significant size range, this standard addresses outside diameters from 3 mm to 450 mm and wall thicknesses from 0.3 mm to 20 mm. By setting clearly defined composition and property requirements, the standard ensures a high level of quality and reliability in the materials produced. One of the notable strengths of the EN 12449 standard is its meticulous attention to the tolerances on dimensions and form. This aspect is crucial for manufacturers and users alike, as it facilitates better compatibility and interchangeability of the tubes in various applications. Additionally, the inclusion of well-defined sampling procedures and testing methods for verifying conformity to the standard solidifies its robustness, providing a structured approach for ensuring that products meet necessary specifications before reaching the market. Moreover, EN 12449 recognizes industry-specific variations by noting that tubes with diameters under 80 mm and those with wall thicknesses exceeding 2 mm are primarily utilized for free machining purposes as per EN 12168. This clarification demonstrates the standard's relevance to different market segments, allowing manufacturers to tailor their processes according to specific usage requirements. In summary, the EN 12449:2016+A1:2019 standard represents a key resource in the field of copper and copper alloys, promoting excellence in the production of seamless round tubes. Its detailed approach to composition, property requirements, dimensional tolerances, and rigorous testing protocols underscores its importance in ensuring quality and reliability in applications across the industry.
La norme EN 12449:2016+A1:2019 est un document clé qui régit les tubes en cuivre et en alliages de cuivre. Son champ d’application est clair et précis, définissant les exigences de composition, de propriétés, ainsi que les tolérances dimensionnelles et de forme pour les tubes ronds sans soudure destinés à des usages généraux. La norme couvre une plage de dimensions allant de 3 mm à 450 mm de diamètre extérieur et de 0,3 mm à 20 mm d'épaisseur de paroi, ce qui en fait un outil essentiel pour les fabricants et utilisateurs de tubes en cuivre. Parmi les forces de cette norme, on trouve sa capacité à établir des critères uniformes pour la qualité et la conformité des tubes en cuivre. Elle assure que tous les produits respectant cette norme sont soumis à des procédures d'échantillonnage et à des méthodes d'essai rigoureuses pour vérifier leur conformité aux exigences. Ceci est crucial pour maintenir un haut niveau de qualité dans toutes les applications où ces tubes sont utilisés, garantissant ainsi la confiance des utilisateurs finaux. La norme EN 12449:2016+A1:2019 est particulièrement pertinente dans le contexte industriel d'aujourd'hui, où les tubes en cuivre sont largement utilisés pour leur conductivité électrique et thermique, ainsi que leur résistance à la corrosion. Sa référence aux tubes de diamètre extérieur inférieur à 80 mm et/ou d’épaisseur de paroi supérieure à 2 mm, qui sont couramment utilisés pour des applications de travail à main, souligne aussi son adaptabilité aux besoins spécifiques du marché. En somme, cette norme offre une base solide pour la production et l'utilisation de tubes en cuivre, renforçant la standardisation dans l'industrie et contribuant à la sécurité et à l'efficacité des produits finaux.
표준 EN 12449:2016+A1:2019은 일반 목적을 위한 무용접 원형 구리 및 구리 합금 튜브에 대한 유럽 표준으로, 그 구성, 속성 요구 사항 및 치수 및 형태에 대한 허용 오차를 명확히 규정하고 있습니다. 이 표준은 직경이 3 mm에서 450 mm까지, 벽 두께가 0.3 mm에서 20 mm까지인 튜브에 적용되며, 다양한 산업에서 사용될 수 있는 광범위한 응용 가능성을 제공합니다. 이 표준의 강점은 그 명확한 기술적 사양에 있습니다. 표준은 구리 및 구리 합금 튜브의 물리적, 화학적 성질에 대한 구체적인 요구 사항을 제시하여 제조업체가 품질 기준을 준수할 수 있도록 돕습니다. 또한, 샘플링 절차 및 요구 사항에 대한 적합성 검증을 위한 시험 방법을 포함하고 있어, 제품의 일관성을 보장합니다. 이러한 측면에서 EN 12449는 효과적인 품질 관리 도구로 기능합니다. 더불어, 80 mm 미만의 외경 및 특정 합금에서 2 mm 이상의 벽 두께를 가지는 튜브는 EN 12168에 명시된 대로 자유 가공 용도로 자주 사용되기 때문에, 다양한 산업 분야에서 유용한 참고 자료가 됩니다. 이로 인해, 특히 기계 가공 산업에서의 적용 가능성도 높습니다. 결론적으로, EN 12449:2016+A1:2019 표준은 구리 및 구리 합금 튜브의 생산 및 사용에 있어 매우 중요한 기준을 제공하며, 산업 전반에 걸쳐 그 신뢰성과 유용성은 부인할 수 없습니다.
Die Norm EN 12449:2016+A1:2019, die sich mit nahtlosen, runden Rohren aus Kupfer und Kupferlegierungen für allgemeine Zwecke befasst, stellt eine bedeutende Grundlage für Hersteller und Anwender in der Branche dar. Der Geltungsbereich dieser Norm umfasst die Zusammensetzung, die Anforderungen an die Eigenschaften sowie die Toleranzen hinsichtlich Dimensionen und Form für nahtlose, rund gezogene Kupfer- und Kupferlegierungsrohre. Die festgelegten Größen reichen von 3 mm bis einschließlich 450 mm Außendurchmesser und von 0,3 mm bis einschließlich 20 mm Wanddicke. Ein herausragendes Merkmal der Norm ist die Klarheit und Präzision, mit der die Anforderungen an die Qualität und die Leistungsmerkmale der Rohre definiert sind. Diese detaillierten Spezifikationen sind entscheidend, um eine einheitliche Qualität der Produkte sicherzustellen und um den Anforderungen der verschiedenen Industrien gerecht zu werden, in denen diese Rohre eingesetzt werden. Darüber hinaus legt die Norm die Prüfmethoden fest, die zur Überprüfung der Übereinstimmung mit den Anforderungen erforderlich sind, was ihre Bedeutung für die Gewährleistung der Produktsicherheit und -zuverlässigkeit unterstreicht. Ein weiterer Punkt, der die Relevanz dieser Norm stärkt, ist der Hinweis auf die spezielle Verwendung von Rohren mit einem Außendurchmesser von weniger als 80 mm und/oder einer Wandstärke von mehr als 2 mm in bestimmten Legierungen. Diese Rohre werden häufig für spanende Bearbeitungsverfahren verwendet, die in der EN 12168 genauer beschrieben sind. Dies zeigt, dass die Norm nicht nur allgemeine Anforderungen definiert, sondern auch spezifische Anwendungen berücksichtigt, was ihre Praxisnähe erhöht. Insgesamt bietet die EN 12449:2016+A1:2019 eine solide Basis für Unternehmen, die Kupfer- und Kupferlegierungsrohre herstellen oder verwenden. Die klaren Vorgaben zu Zusammensetzung, Eigenschaften und Prüfmethoden machen sie zu einem essenziellen Dokument für Qualitätssicherung und Innovationsförderung in der Metallverarbeitung.
SIST EN 12449:2016+A1:2019は、銅および銅合金の一般目的向けシームレスの円管についてのヨーロッパ標準を定めています。この標準は、外径が3 mmから450 mmまで、壁厚が0.3 mmから20 mmまでの範囲のシームレスで引き抜きされた銅および銅合金の管材に関する組成、特性要件、寸法及び形状の公差を詳細に規定しています。 この標準の強みは、材料の特性に関する明確な要件が設けられている点にあります。これにより、使用される銅および銅合金の管材が成形加工や他の用途において一貫した性能を発揮することが保証されます。また、サイズ範囲が広く設定されているため、様々な産業ニーズに対応可能です。 さらに、サンプリング手順や試験方法が定められていることで、この標準に準拠する製品の適合性を確認するための手順が整備されており、製品の品質を確保する上で重要な役割を果たしています。特に、外径が80 mm未満または特定の合金において壁厚が2 mmを超える管材は、無料加工の目的で頻繁に使用されることがあるため、EN 12168で指定された内容との関連性も考慮されています。 全体として、SIST EN 12449:2016+A1:2019は、銅および銅合金のシームレスな円管に関する広範な要件を網羅し、品質と性能の一貫性を求める業界において極めて重要なスタンダードであると言えます。
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