1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 12735-2:2010Copper and copper alloys Seamless, round coppertubes for air conditioning andrefrigerationPart 2: Tubes for equipmentProvided by IHSNot for ResaleNo reproductio
2、n or networking permitted without license from IHS-,-,-BS EN 12735-2:2010 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 12735-2:2010.It supersedes BS EN 12735-2:2001 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee
3、 NFE/34/1, Wrought and unwrought copper and copperalloys.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. BSI 2010
4、ISBN 978 0 580 65091 8ICS 23.040.15; 77.150.30; 91.140.30Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 August 2010Amendments issued since publicationDate Text
5、 affectedProvided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 12735-2:2010EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12735-2 July 2010 ICS 23.040.15 Supersedes EN 12735-2:2001English Version Copper and copper alloys - Seamless, round coppe
6、r tubes for air conditioning and refrigeration - Part 2: Tubes for equipmentCuivre et alliages de cuivre - Tubes ronds sans soudure en cuivre pour lair conditionn et la rfrigration - Partie 2: Tubes pour le matriel Kupfer und Kupferlegierungen - Nahtlose Rundrohre aus Kupfer fr die Klte- und Klimate
7、chnik - Teil 2: Rohre fr Apparate This European Standard was approved by CEN on 12 June 2010. 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-dat
8、e lists and bibliographical references concerning such national standards may be obtained on application to the CEN 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 th
9、e responsibility of a CEN member into its own language and notified to the CEN 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, Gre
10、ece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Managem
11、ent Centre: Avenue Marnix 17, B-1000 Brussels 2010 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12735-2:2010: EProvided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 12735-2:2010E
12、N 12735-2:2010 (E) 2 Contents Page Foreword 4Introduction .61 Scope 72 Normative references 73 Terms and definitions .84 Designations 84.1 Material .84.2 Material condition 94.3 Product .95 Ordering information 106 Requirements 106.1 Composition 106.2 Mechanical properties and grain size . 116.3 Dim
13、ensions and tolerances for smooth tubes 116.4 Dimensions and tolerances for inner finned tubes . 156.5 Drift expanding (for smooth tubes). 166.6 Freedom from defects 176.7 Surface quality 187 Sampling 188 Test methods . 188.1 Analysis . 188.2 Tensile test 188.3 Hardness test 188.4 Estimation of aver
14、age grain size . 188.5 Drift expanding test 188.6 Carbon content test 198.7 Freedom from defects test . 198.8 Retests . 209 Declaration of conformity and inspection documentation . 209.1 Declaration of conformity 209.2 Inspection documentation . 2010 Packaging, marking and form of delivery 2010.1 Pa
15、ckaging and marking . 2010.2 Form of delivery 21Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU Pressure Equipment Directive (PED) 97/23/EC 22Bibliography . 23Tables Table 1 Mechanical properties and grain size 11 Table 2 Nominal outside diamet
16、ers and wall thicknesses for smooth tubes . 12 Table 3 Tolerances on mean outside diameter for smooth tubes . 13 Table 4 Tolerances on wall thickness for smooth tubes 13 Table 5 Tolerances on length for tubes supplied in straight lengths 14 Provided by IHSNot for ResaleNo reproduction or networking
17、permitted without license from IHS-,-,-BS EN 12735-2:2010EN 12735-2:2010 (E) 3 Table 6 Maximum deviation from circular form expressed as percentage of the nominal outside diameter 15 Table 7 Recommended nominal outside diameters for inner finned tubes . 16 Table 8 Testing of drift expanding . 17 Tab
18、le 9 Permissible number of defects for coils 17 Table 10 Maximum drill diameters for reference standard tube . 19 Table 11 Coil and reel dimensions . 21 Table ZA.1 Correspondence between this European Standard and Directive 97/23/EC 22 Provided by IHSNot for ResaleNo reproduction or networking permi
19、tted without license from IHS-,-,-BS EN 12735-2:2010EN 12735-2:2010 (E) 4 Foreword This document (EN 12735-2:2010) 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 s
20、tandard, either by publication of an identical text or by endorsement, at the latest by January 2011, and conflicting national standards shall be withdrawn at the latest by January 2011. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rig
21、hts. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 12735-2:2001. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requi
22、rements of EU Directive 97/23/EC Pressure Equipment Directive (PED). For relationship with EU Directive 97/23/EC, see informative Annex ZA, which is an integral part of this document. Within its programme of work, Technical Committee CEN/TC 133 requested CEN/TC 133/WG 3 “Copper tubes (installation a
23、nd industrial)“ to revise EN 12735-2:2001. EN 12735-2, Copper and copper alloys Seamless, round copper tubes for air conditioning and refrigeration Part 2: Tubes for equipment. In comparison with the first edition of EN 12735-2:2001, the following significant technical changes were made: a) the size
24、 range of the outer diameter for smooth tubes has been increased from (7 to up to and including 64) mm to (6 to up to and including 133) mm; b) wall thickness, addition of two thicknesses (2,50 and 3,00) mm; c) the term “temper“ replaced by “material condition“ (only in the English wording); d) the
25、material conditions R250 and R290 have been additionally incorporated; e) EN 10002-1 replaced by EN ISO 6892-1; f) EN 10234 has been replaced by EN ISO 8493. This European Standard “Copper and copper alloys Seamless, round copper tubes for air conditioning and refrigeration“ consists of two parts: -
26、 Part 1: Tubes for piping systems; - Part 2: Tubes for equipment. This is one of a series of European Standards for copper and copper alloy tubes. Other products are specified as follows: Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 12735-2:
27、2010EN 12735-2:2010 (E) 5 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 1
28、2451, 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 copper tubes for air conditioning and refrigeration Part 1: Tubes for piping systems EN
29、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 Regulation
30、s, 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, N
31、etherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 12735-2:2010EN 12735-2:2010 (E) 6 Introduction It is recommended that tubes manufa
32、ctured to this standard are certified as conforming to the requirements of this standard based on continuing surveillance which should be coupled with an assessment of a suppliers quality management system against EN ISO 9001. NOTE Appropriate precautions should be taken if applying insulating mater
33、ial because it could be detrimental to the copper tube. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 12735-2:2010EN 12735-2:2010 (E) 7 1 Scope This European Standard specifies the requirements, sampling, test methods and conditions of delive
34、ry for seamless round copper tubes, smooth or inner finned, used for heat exchangers and their internal connecting pipes in the manufacturing of refrigeration and air conditioning equipment. It is applicable to tubes with an outside diameter from 6 mm up to and including 133 mm. The tubes are suppli
35、ed in straight length in the material conditions hard, half-hard or skin hard or as coils in the material conditions light annealed or soft annealed. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the editi
36、on cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 723, Copper and copper alloys Combustion method for determination of the carbon content on the inner surface of copper tubes or fittings EN 1173:2008, Copper and copper allo
37、ys Material condition designation EN 1655:1997, Copper and copper alloys Declarations of conformity EN 1971, Copper and copper alloys Eddy current test for tubes EN 10204, Metallic products Types of inspection documents EN ISO 2624, Copper and copper alloys Estimation of average grain size (ISO 2624
38、:1990) EN ISO 6507-1, Metallic materials Vickers hardness test Part 1: Test method (ISO 6507-1:2005) EN ISO 6892-1, Metallic materials Tensile testing Part 1: Method of test at room temperature (ISO 6892-1:2009) EN ISO 8493, Metallic materials Tube Drift expanding test (ISO 8493:1998) ISO 1553, Unal
39、loyed copper containing not less than 99,90 % of copper Determination of copper content Electrolytic method ISO 4741, Copper and copper alloys Determination of phosphorus content Molybdovanadate spectrometric method Provided by IHSNot for ResaleNo reproduction or networking permitted without license
40、 from IHS-,-,-BS EN 12735-2:2010EN 12735-2:2010 (E) 8 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 seamless round copper tube hollow semi-finished product, circular in cross-section, made of copper, having a uniform wall thickness, which a
41、t all stages of production has a continuous periphery EN 1057:2006, definition 3.1 3.2 coil winding in which the turns either are arranged into layers parallel to its axis such that successive turns in a given layer are next to one another (LWC Level Wound Coil) or are spirally arranged (SWC Spiral
42、Wound Coil) 3.3 mean diameter arithmetical mean of the maximum and minimum outside diameters through the same cross-section of the tube EN 1057:2006, definition 3.5 3.4 deviation from circular form difference between the maximum and minimum outside diameters measured at any one cross-section of the
43、tube EN 1057:2006, definition 3.6 3.5 deviation from concentricity half of the difference between the maximum and minimum wall thicknesses at the same cross-section of the tube EN 1057:2006, definition 3.7 3.6 production batch definite quantity of products of the same form, the same material conditi
44、on and the same cross-sectional dimensions manufactured during the same production sequence under uniform conditions EN 1057:2006, definition 3.8 4 Designations 4.1 Material 4.1.1 General The material is designated either by symbol or number (see 6.1). 4.1.2 Symbol The material symbol designation is
45、 based on the designation system given in ISO 1190-1. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 12735-2:2010EN 12735-2:2010 (E) 9 4.1.3 Number The material number designation is in accordance with the system given in EN 1412. 4.2 Material
46、 condition For the purposes of this European Standard, the following designation, which is in accordance with the system given in EN 1173, applies for the material condition (see Table 1): R Material condition designated by the minimum value of tensile strength requirement for the product with manda
47、tory tensile strength and elongation requirements. Y. Material condition designated by the minimum value of 0,2 % proof strength requirement for the product with mandatory 0,2 % proof strength, tensile strength, elongation and grain size requirements. 4.3 Product The product designation provides a s
48、tandardized 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
