SIST EN 12451:2012
(Main)Copper and copper alloys - Seamless, round tubes for heat exchangers
Copper and copper alloys - Seamless, round tubes for heat exchangers
This European Standard specifies the composition, property requirements and tolerances on dimensions and form for seamless round drawn copper and copper alloy tubes for heat exchangers, condensers, evaporators and desalina¬tion equipment, supplied in the size range from 6 mm up to and including 76 mm outside diameter and from 0,5 mm up to and including 3 mm wall thickness.The sampling procedures and the methods of test for verification of conformity to the requirements of this standard are also specified.
Kupfer und Kupferlegierungen - Nahtlose Rundrohre für Wärmeaustauscher
Diese Europäische Norm legt die Zusammensetzung, die Anforderungen an die Eigenschaften, Grenzabmaße und Formtoleranzen für nahtlosgezogene Rundrohre aus Kupfer und Kupferlegierungen für Wärmeaus-tauscher, Kondensatoren, Verdampfer und Entsalzungsanlagen fest. Diese Norm gilt für Rohre aus Kupfer und Kupferlegierungen im Maßbereich von 6 mm bis 76 mm Außendurchmesser und von 0,5 mm bis 3 mm Wanddicke. Der Ablauf der Probenentnahme und die Prüfverfahren zur Feststellung der Übereinstimmung mit den Anforderungen dieser Europäischen Norm sind ebenfalls festgelegt.
Cuivre et alliages de cuivre - Tubes ronds sans soudure pour échangeurs thermiques
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 destinés aux échangeurs
thermiques, aux condenseurs, aux évaporateurs et aux installations de désalinisation. Elle est applicable aux
tubes en cuivre et en alliages de cuivre fournis dans une plage de diamètre extérieur de 6 mm à 76 mm
compris, et d'épaisseur de paroi de 0,5 mm à 3 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.
Baker in bakrove zlitine - Nevarjene cevi z okroglim prerezom za toplotne izmenjevalnike
Ta evropski standard določa sestavo, zahteve glede značilnosti ter odstopanja glede dimenzij in oblike za nevarjene okrogle cevi iz vlečenega bakra in bakrovih zlitin za toplotne izmenjevalnike, kondenzatorje, uparjalnike in opremo za razsoljevanje, ki se dobavljajo z zunanjim premerom velikosti od 6 mm do vključno 76 mm in debelino stene od 0,5 mm do vključno 3 mm. Določeni so tudi postopki vzorčenja in preskusne metode za preverjanje skladnosti tega standarda.
General Information
Relations
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Baker in bakrove zlitine - Nevarjene cevi z okroglim prerezom za toplotne izmenjevalnikeKupfer und Kupferlegierungen - Nahtlose Rundrohre für WärmeaustauscherCuivre et alliages de cuivre - Tubes ronds sans soudure pour échangeurs thermiquesCopper and copper alloys - Seamless, round tubes for heat exchangers77.150.30Bakreni izdelkiCopper products23.040.15Cevi iz neželeznih kovinNon-ferrous metal pipesICS:Ta slovenski standard je istoveten z:EN 12451:2012SIST EN 12451:2012en,de01-september-2012SIST EN 12451:2012SLOVENSKI
STANDARDSIST EN 12451:20001DGRPHãþD
SIST EN 12451:2012
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 12451
May 2012 ICS 23.040.15; 77.150.30 Supersedes EN 12451:1999English Version
Copper and copper alloys - Seamless, round tubes for heat exchangers
Cuivre et alliages de cuivre - Tubes ronds sans soudure pour échangeurs thermiques
Kupfer und Kupferlegierungen - Nahtlose Rundrohre für Wärmeaustauscher This European Standard was approved by CEN on 20 April 2012.
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, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12451:2012: ESIST EN 12451:2012
EN 12451:2012 (E) 2 Contents Page Foreword .31Scope .52Normative references .53Terms and definitions .54Designations .64.1Material .64.2Material condition .64.3Product .65Ordering information .76Requirements .86.1Composition .86.2Mechanical properties .86.3Dimensions and tolerances .96.4Surface quality .96.5Technological requirements . 107Sampling . 107.1General . 107.2Analysis . 107.3Mechanical tests and stress corrosion resistance test . 118Test methods . 118.1Analysis . 118.2Tensile test . 118.3Hardness test . 118.4Technological tests . 118.5Freedom from defects tests . 118.6Retests . 138.7Rounding of results . 139Declaration of conformity and inspection documentation . 139.1Declaration of conformity . 139.2Inspection documentation . 1310Marking, packaging, labelling . 14Annex A (normative)
U-bend seamless copper and copper alloy heat exchanger tubes . 19Annex ZA (informative)
Relationship between this European Standard and the Essential Requirements of EU Pressure Equipment Directive (PED) 97/23/EC . 21Bibliography . 22 Tables Table 1 — Composition of copper and copper alloys . 15 Table 2 — Mechanical properties of copper and copper alloys . 16 Table 3 — Tolerances on diameter . 17 Table 4 — Tolerances on length . 17 Table 5 — Tolerances on squareness of cut . 17 Table 6 — Sampling rate . 18 Table 7 — Drill sizes for production of reference standard tubes . 18 Table ZA.1 — Correspondence between this European Standard and Directive 97/23/EC . 21
SIST EN 12451:2012
EN 12451:2012 (E) 3 Foreword This document (EN 12451:2012) 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 November 2012, and conflicting national standards shall be withdrawn at the latest by November 2012. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 12451:1999. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive 97/23/EC Pressure Equipment Directive (PED). For relationship with EU Directive 97/23/EU, see informative Annex ZA, which is an integral part of this document. In comparison with EN 12451:1999, the following significant technical changes were made: a) for Cu-DHP (CW024A): 1) the material condition R220 in Table 2 was added; 2) elongation values were modified for R250 and R290. 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 12451:1999, Copper and copper alloys — Seamless, round tubes for heat exchangers 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 12449, Copper and copper alloys — Seamless, round tubes for general purposes
EN 12450, Copper and copper alloys — Seamless, round copper capillary tubes
EN 12452, Copper and copper alloys — Rolled, finned, seamless tubes for heat exchangers
EN 12735-1, Copper and copper alloys — Seamless, round copper tubes for air conditioning and refrigeration — Part 1: Tubes for piping systems
EN 12735-2, Copper and copper alloys — Seamless, round copper 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 SIST EN 12451:2012
EN 12451:2012 (E) 4 According to the CEN/CENELEC Internal Regulations, the national standards organizations 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, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. SIST EN 12451:2012
EN 12451:2012 (E) 5 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 heat exchangers, condensers, evaporators and desalination equipment. It is applicable to copper and copper alloy tubes supplied in the size range from 6 mm up to and including 76 mm outside diameter and from 0,5 mm up to and including 3 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. 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 10204:2004, 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 (l) nitrate test (ISO 196) EN ISO 2624, Copper and copper alloys — Estimation of average grain size (ISO 2624) 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 wall thickness arithmetical mean of the maximum and minimum wall thicknesses at the same cross-section of the tube SIST EN 12451:2012
EN 12451:2012 (E) 6 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 by number (see Table 1). 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 European 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 European Standard, the following designations, which are in accordance with the system given in EN 1173, apply for the material condition: 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. S (suffix)
Material condition for a product which is stress relieved. NOTE 1 Products in the H. condition can be specified to Vickers or Brinell hardness. The condition designation H. is the same for both hardness test methods. NOTE 2 Products in the 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 material conditions designated R. and H. is not possible. Except when the suffix S is used, the 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 can be conveyed in communication. It provides mutual comprehension at the international level with regard to products which meet the requirements of the relevant European Standard. The product designation is no substitute for the full content of the standard. SIST EN 12451:2012
EN 12451:2012 (E) 7 The product designation for products to this European Standard shall consist of: denomination (Tube); number of this European Standard (EN 12451); material designation, either symbol or number (see Table 1); material condition designation (see Table 2); nominal cross-sectional dimensions (outside diameter × wall thickness). The derivation of a product designation is shown in the following example. EXAMPLE Tube conforming to this European Standard, in material designated either CuNi10Fe1Mn or CW352H, in material condition H075, with nominal outside diameter 22 mm and nominal wall thickness 2,0 mm, shall be designated as follows:
Tube EN 12451 – CuNi10Fe1Mn – H075 – 22 ×××× 2,0
or
Tube EN 12451 –
CW352H
–
H075
–
22 ×××× 2,0 Denomination Number of this European Standard Material designation Material condition designation Nominal dimensions in millimetres 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: NOTE 1 Heat exchanger tube can also be supplied as U-bend tube. For specific product and ordering information, see Annex A. a) quantity of product required (number of pieces, length or mass); b) denomination (Tube); c) number of this European Standard (EN 12451); d) material designation (see Table 1); e) material condition designation (see 4.2 and Table 2); f) nominal cross-sectional dimensions (outside diameter × wall thickness); g) nominal length (see 6.3.4). NOTE 2 It is recommended that the product designation, as described in 4.3, is used for items b) to f). SIST EN 12451:2012
EN 12451:2012 (E) 8 In addition, the purchaser shall also state on the enquiry and order any of the following, if required: h) whether minimum wall thickness is required (see 6.3.3.2); i) whether the tubes in alloy CuNi10Fe1Mn (CW352H) are for sea water application (see Table 1), and if so, the composition limits required; j) whether the tubes are required to pass a stress corrosion resistance test (see 6.5.2); k) whether the tubes in hard condition are required with annealed ends; l) whether the tubes are required to pass freedom from defects tests (see 6.5.4), and if so, which test method is to be used (see 8.5) if the choice and/or the acceptance criteria is (are) not to be left to the discretion of the supplier; m) whether the tubes are for subsequent welding applications (see Table 1); n) whether special surface quality is required (see 6.4); o) whether a declaration of conformity is required (see 9.1); p) whether an inspection document is required, and if so, which type (see 9.2); q) 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 12451, in material designated either CuNi10Fe1Mn or CW352H, in material condition H075, with nominal outside diameter 22 mm, nominal wall thickness 2,0 mm and nominal length 3 000 mm:
1 000 m Tube EN 12451 – CuNi10Fe1Mn – H075 – 22 ×××× 2,0
– nominal length 3 000 mm
or
1 000 m Tube EN 12451 – CW352H – H075 – 22 ×××× 2,0
– nominal length 3 000 mm 6 Requirements 6.1 Composition The composition shall conform to the requirements for the appropriate material given in Table 1. 6.2 Mechanical properties The properties shall conform to the appropriate requirements given in Table 2. 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. SIST EN 12451:2012
EN 12451:2012 (E) 9 6.3 Dimensions and tolerances 6.3.1 General The geometrical properties of the tubes are defined by outside diameter, wall thickness and length. The dimensional tolerances are applied on the outside diameter and wall thickness, if not otherwise agreed between the purchaser and the supplier. 6.3.2 Outside diameter The diameter of the tubes shall conform to the tolerances given in Table 3. 6.3.3 Wall thickness 6.3.3.1 General The wall thickness, measured at any point, shall conform
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