1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 12452:2012Copper and copper alloys Rolled, finned, seamless tubesfor heat exchangersBS EN 12452:2012 BRITISH STANDARDNational forewordThis British Standard is the UK implem
2、entation of EN 12452:2012. Itsupersedes BS EN 12452:1999 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee NFE/34/1, Wrought and unwrought copper and copperalloys.A list of organizations represented on this committee can beobtained on request to its secre
3、tary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2012. Published by BSI StandardsLimited 2012ISBN 978 0 580 70543 4ICS 77.150.30Compliance with a British Standard cannot co
4、nfer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 May 2012.Amendments issued since publicationDate Text affectedBS EN 12452:2012EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12452 May 2012 ICS 23.040
5、.15; 77.150.30 Supersedes EN 12452:1999English Version Copper and copper alloys - Rolled, finned, seamless tubes for heat exchangers Cuivre et alliages de cuivre - Tubes sans soudure ailettes pour changeurs thermiques Kupfer und Kupferlegierungen - Nahtlose, gewalzte Rippenrohre fr Wrmeaustauscher T
6、his 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 refere
7、nces 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
8、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, Icel
9、and, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre
10、: 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 12452:2012: EBS EN 12452:2012EN 12452:2012 (E) 2 Contents Page Foreword 31 Scope 52 Normative references 53 Terms and definitions .54 Designat
11、ions 64.1 Material .64.2 Material condition 74.3 Product .75 Ordering information .86 Requirements .96.1 Composition .96.2 Mechanical properties .96.3 Dimensions and tolerances 96.4 Tolerances on form. 106.5 Surface quality 106.6 Technological requirements 117 Sampling 117.1 General . 117.2 Analysis
12、 . 117.3 Mechanical tests . 118 Test methods . 128.1 Analysis . 128.2 Tensile test 128.3 Hardness test 128.4 Technological tests 128.5 Freedom from defects tests . 128.6 Retests . 138.7 Rounding of results 139 Declaration of conformity and inspection documentation . 139.1 Declaration of conformity 1
13、39.2 Inspection documentation . 1310 Marking, packaging, labelling 14Annex A (normative) Freedom from defects tests 18Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU Pressure Equipment Directive (PED) 97/23/EC 20Bibliography . 21Figures Figure
14、1 Rolled finned tube .6 Tables Table 1 Composition of copper and copper alloys 15 Table 2 Mechanical properties of copper and copper alloy tubes before fining 16 Table 3 Tolerances on outside diameter 16 Table 4 Tolerances on length . 16 Table 5 Tolerances on fin pitch . 17 Table 6 Sampling rate . 1
15、7 Table ZA.1 Correspondence between this European Standard and Directive 97/23/EC . 20 BS EN 12452:2012EN 12452:2012 (E) 3 Foreword This document (EN 12452:2012) has been prepared by Technical Committee CEN/TC 133 “Copper and copper alloys”, the secretariat of which is held by DIN. This European Sta
16、ndard 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
17、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 12452:1999. This document has been prepared under a mandate given to CEN by the European Commission and the European Free
18、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 12452:1999, the following significant technical
19、 changes were made: a) addition of material condition R250 for Cu-DHP; b) replacement of sampling rate in Table 6. 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 12452:1999, Copp
20、er and copper alloys Rolled, finned, seamless 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 a
21、pplications EN 12449, Copper and copper alloys Seamless, round tubes for general purposes EN 12450, Copper and copper alloys Seamless, round copper capillary tubes EN 12451, Copper and copper alloys Seamless, round tubes for heat exchangers EN 12735-1, Copper and copper alloys Seamless, round copper
22、 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 vac
23、uum 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 BS EN 12452:2012EN 12452:2012 (E) 4 According to the CEN/CENELEC Internal Regulations, the national standards organizations of the fo
24、llowing 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, Sl
25、ovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 12452:2012EN 12452:2012 (E) 5 1 Scope This European Standard specifies the composition, property requirements and tolerances on dimensions and form for rolled, finned, seamless copper and copper alloy tubes for heat e
26、xchangers. It is applicable to copper and copper alloy tubes supplied in the size range from 6 mm up to and including 35 mm outside diameter; from 1 mm up to and including 3 mm wall thickness of the unfinned section; and with fin height up to and including 1,5 mm. The sampling procedures and the met
27、hods of testing 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
28、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 coppe
29、r 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
30、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
31、 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 s
32、tress corrosion resistance 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 rolled finned tube tube having a series of helical integral fins on the outside surface, produced by cold forming Note 1 to entry: See Figure 1. The inside surface can
33、 be specially shaped. BS EN 12452:2012EN 12452:2012 (E) 6 where d1is the outside diameter of unfinned section; d2is the outside diameter of finned section; l1is the total tube length; l2is the length of unfinned tube end; l3is the length of unfinned intermediate section; l4is the distance from tube
34、end to the unfinned intermediate section; h is the fin height; s1is the wall thickness of unfinned section; s2is the wall thickness of finned section. Figure 1 Rolled finned tube 3.2 deviation from circular form difference between the maximum and minimum outside diameters measured at any one cross-s
35、ection 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 de
36、signations 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. BS EN 12452:2012EN 12452:2012 (E) 7 4.1.3 Number The material number designation is in accorda
37、nce 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 r
38、equirement 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 Products in the R. o
39、r 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 6.6.2). Exact conversion between material conditions designated R. and H. is not possible. Except when the suffix
40、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
41、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 European Standard shall consist of: denomination (Tube); number o
42、f this European Standard (EN 12452); material designation, either symbol or number (see Table 1); material condition designation (see Table 2); nominal cross-sectional dimensions expressed as outside diameter and wall thickness of the tube before finning (see 6.3); fin pitch (N), (number of fins per
43、 inch) and fin height (H). 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 R290, with nominal outside diameter 22 mm, nominal wall thickness 1,25 m
44、m, number of fins per inch 19 and fin height 1,5 mm, shall be designated as follows: BS EN 12452:2012EN 12452:2012 (E) 8 Tube EN 12452 CuNi10Fe1Mn R290 22 1,25 N19 H1,5 or Tube EN 12452 CW352H R290 22 1,25 N19 H1,5 Denomination Number of this European Standard Material designation Material condition
45、 designation Nominal cross-sectional dimensions in millimetres Fin pich and fin height 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 inform
46、ation: a) quantity of product required (number of pieces or length); b) denomination (Tube); c) number of this European Standard (EN 12452); d) material designation (see Table 1); e) material condition designation (see 4.2 and Table 2); f) nominal cross-sectional dimensions (outside diameter wall th
47、ickness); g) fin pitch (N) and fin height (H); h) lengths: total tube length (l1in Figure 1), length of unfinned tube ends, if required (l2in Figure 1), length and location of unfinned intermediate section, if required (l3and l4in Figure 1). NOTE 1 It is recommended that the product designation, as
48、described in 4.3, be used for items b) to g). In addition, the purchaser shall also state on the enquiry and order any of the following, if required: i) whether a specially shaped inside surface is required; NOTE 2 Details should be agreed between the purchaser and the supplier. j) whether the tubes
49、 are for subsequent welding applications (see Table 1); k) whether the tubes are for sea water application (see Table 1), and if so, the composition limits required; l) which test method is to be used for the freedom from defects test, if the choice is not to be left to the discretion of the manufacturer; m) wh
