SIST EN 12449:2016

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Baker in bakrove zlitine - Nevarjene cevi z okroglim prerezom za splošno uporaboKupfer und Kupferlegierungen - Nahtlose Rundrohre zur allgemeinen VerwendungCuivre et alliages de cuivre - Tubes ronds sans soudure pour usages générauxCopper and copper alloys - Seamless, round tubes for general purposes77.150.30Bakreni izdelkiCopper products23.040.15Cevi iz neželeznih kovinNon-ferrous metal pipesICS:Ta slovenski standard je istoveten z:FprEN 12449kSIST FprEN 12449:2015en,fr,de01-oktober-2015kSIST FprEN 12449:2015SLOVENSKI
STANDARD



kSIST FprEN 12449:2015



EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
FINAL DRAFT
FprEN 12449
August 2015 ICS 23.040.15 Will supersede EN 12449:2012English Version
Copper and copper alloys - Seamless, round tubes for general purposes
Cuivre et alliages de cuivre - Tubes ronds sans soudure pour usages généraux
Kupfer und Kupferlegierungen - Nahtlose Rundrohre zur allgemeinen Verwendung This draft European Standard is submitted to CEN members for unique acceptance procedure. 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, 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:
Avenue Marnix 17,
B-1000 Brussels © 2015 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. FprEN 12449:2015 EkSIST FprEN 12449:2015



FprEN 12449:2015 (E) 2 Contents Page Foreword .4 Introduction .5 1 Scope .6 2 Normative references .6 3 Terms and definitions .6 4 Designations .7 4.1 Material .7 4.1.1 General .7 4.1.2 Symbol .7 4.1.3 Number .7 4.2 Material condition .7 4.3 Product .8 5 Ordering information .9 6 Requirements . 10 6.1 Composition . 10 6.2 Mechanical properties . 10 6.3 Dimensions and tolerances . 10 6.3.1 General . 10 6.3.2 Outside or inside diameter . 10 6.3.3 Wall thickness . 10 6.3.4 Fixed lengths . 10 6.3.5 Tolerances on form. 11 6.4 Surface quality . 11 6.5 Technological requirements . 11 6.5.1 Drift expanding . 11 6.5.2 Residual stress level . 11 6.5.3 Grain size . 11 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 . 12 8 Test methods . 12 8.1 Analysis . 12 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 . 13 8.6 Retests . 13 8.6.1 Analysis, tensile, hardness, drift expanding and grain size tests . 13 8.6.2 Stress corrosion resistance test . 14 8.7 Rounding of results . 14 kSIST FprEN 12449:2015



FprEN 12449:2015 (E) 3 9 Declaration of conformity and inspection documentation . 14 9.1 Declaration of conformity . 14 9.2 Inspection documentation . 14 10 Marking, packaging, labelling . 14 Bibliography . 44 Figures Figure 1 — Measurement of straightness . 43 Tables Table 1 — Composition of copper . 15 Table 2 — Composition of low alloyed copper alloys . 16 Table 3 — Composition of copper-nickel alloys . 16 Table 4 — Composition of copper-nickel-zinc alloys . 16 Table 5 — Composition of copper-tin alloys. 17 Table 6 — Composition of binary copper-zinc alloys . 17 Table 7 — Composition of copper-zinc-lead alloys . 18 Table 8 — Composition of complex copper-zinc alloys . 19 Table 9 — Mechanical properties of copper and low alloyed copper alloys . 20 Table 10 — Mechanical properties of copper-nickel alloys . 24 Table 11 — Mechanical properties of copper-nickel-zinc alloys . 25 Table 12 — Mechanical properties of copper-tin alloys . 26 Table 13 — Mechanical properties of binary copper-zinc alloys . 28 Table 14 — Mechanical properties of copper-zinc-lead alloys . 33 Table 15 — Mechanical properties of complex copper-zinc alloys . 36 Table 16 — Minimal elongation values for R250 (half hard) material condition tubes . 41 Table 17 — Tolerances on diameter . 41 Table 18 — Tolerances on wall thickness . 41 Table 19 — Tolerances on fixed lengths, tubes in straight lengths . 42 Table 20 — Tolerances on fixed lengths, tube in coils (not level wound) . 42 Table 21 — Tolerances on diameter including deviation from circular form, tube in coils . 42 Table 22 — Tolerances on straightness . 43 Table 23 — Sampling rate . 43 kSIST FprEN 12449:2015



FprEN 12449:2015 (E) 4
Foreword This document (FprEN 12449:2015) 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 Unique Acceptance Procedure. This document will supersede EN 12449:2012. 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. 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. kSIST FprEN 12449:2015



FprEN 12449:2015 (E) 5 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: Wielandwerke 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. kSIST FprEN 12449:2015



FprEN 12449:2015 (E) 6 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. kSIST FprEN 12449:2015



FprEN 12449:2015 (E) 7 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. kSIST FprEN 12449:2015



FprEN 12449:2015 (E) 8 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, shall 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, shall be designated as follows:
Tube EN 12449 — CuZn37 — MS — ID30 × 2,5
or
Tube EN 12449 — CW508L — MS — ID30 × 2,5 kSIST FprEN 12449:2015



FprEN 12449:2015 (E) 9 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 advise 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: kSIST FprEN 12449:2015



FprEN 12449:2015 (E) 10
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. kSIST FprEN 12449:2015



FprEN 12449:2015 (E) 11 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 Cla
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