1、January 2013 Translation by DIN-Sprachendienst.English price group 9No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS
2、 23.040.15; 77.150.30!$g“1936168www.din.deDDIN EN 12450Copper and copper alloys Seamless, round copper capillary tubes;English version EN 12450:2012,English translation of DIN EN 12450:2013-01Kupfer und Kupferlegierungen Nahtlose, runde Kapillarrohre aus Kupfer;Englische Fassung EN 12450:2012,Englis
3、che bersetzung von DIN EN 12450:2013-01Cuivre et alliages de cuivre Tuyaux circulaires en cuivre, de faible diamtre, sans soudure;Version anglaise EN 12450:2012,Traduction anglaise de DIN EN 12450:2013-01SupersedesDIN EN 12450:1999-10www.beuth.deDocument comprises 14 pagesIn case of doubt, the Germa
4、n-language original shall be considered authoritative.12.12 DIN EN 12450:2013-01 2 A comma is used as the decimal marker. National foreword This document (EN 12450:2012) has been prepared by Technical Committee CEN/TC 133 “Copper and copper alloys”, Working Group WG 3 “Copper tubes (installation and
5、 industrial)” (both secretariats are held by DIN, Germany). The responsible German body involved in its preparation was the Normenausschuss Nichteisenmetalle (Nonferrous Metals Standards Committee), Working Committee NA 066-02-03 AA Kupferrohre (Installation und Industrie). Amendments This standard
6、differs from DIN EN 12450:1999-10 as follows: a) Subclause 6.6 “Surface quality” has been revised; b) Subclause 8.5 “Cleanliness test” has been revised to include the text regarding the determination of lubricant residues as described in EN 723. Previous editions DIN EN 12452: 1999-10 EUROPEAN STAND
7、ARD NORME EUROPENNE EUROPISCHE NORM EN 12450 November 2012 ICS 23.040.15; 77.150.30 Supersedes EN 12450:1999English Version Copper and copper alloys - Seamless, round copper capillary tubes Cuivre et alliages de cuivre - Tuyaux circulaires en cuivre, de faible diamtre, sans soudure Kupfer und Kupfer
8、legierungen - Nahtlose, runde Kapillarrohre aus Kupfer This European Standard was approved by CEN on 6 October 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 an
9、y 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 langua
10、ge 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,
11、 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. EUROPEAN COMMITTEE FOR
12、 STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR 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 12450:2012: EEN 12450:2012 (E) 2 Contents Page
13、 Foreword 31 Scope 42 Normative references 43 Terms and definitions .44 Designations 54.1 Material .54.2 Material condition 54.3 Product .55 Ordering information .66 Requirements .76.1 Composition .76.2 Mechanical properties .76.3 Dimensions and tolerances 76.4 Tolerances on form86.5 Flow .86.6 Surf
14、ace quality .87 Sampling .97.1 General 97.2 Analysis 97.3 Mechanical tests 98 Test methods 98.1 Analysis 98.2 Tensile test 108.3 Hardness test 108.4 Flow test 108.5 Cleanliness test. 108.6 Retests . 108.7 Rounding of results 109 Declaration of conformity and inspection documentation . 119.1 Declarat
15、ion of conformity 119.2 Inspection documentation . 1110 Marking, packaging, labelling 11Bibliography . 12Tables Table 1 Mechanical properties . 7Table 2 Tolerances on tubes in straight lengths . 8Table 3 Tolerances on flow 8Table 4 Sampling rate . 9DIN EN 12450:2013-01 EN 12450:2012 (E) 3 Foreword T
16、his document (EN 12450:2012) 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 b
17、y May 2013, and conflicting national standards shall be withdrawn at the latest by May 2013. 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 r
18、ights. This document supersedes EN 12450:1999. In comparison with EN 12450:1999, the following significant technical changes were made: a) 6.6 “Surface quality“, has been modified; b) In 8.5 “Cleanliness test“ the text regarding the determination of lubricant residue as described in EN 723 has been
19、added. This is one of a series of European Standards for copper and copper alloy tubes. Other products are, or will be, 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 Seaml
20、ess, round tubes for general purposes 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 copper tubes for air conditioning and refriger
21、ation 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 P
22、re-insulated copper tubes with solid covering EN 13600, Copper and copper alloys Seamless copper tubes for electrical purposes 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 1245
23、0:1999, Copper and copper alloys Seamless, round copper capillary tubes. 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, Denm
24、ark, 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 the United Kingdom. DIN EN 12450:2
25、013-01 EN 12450:2012 (E) 4 1 Scope This European Standard specifies the composition, property requirements and tolerances on dimensions and on form for seamless round copper capillary tubes for use as metering lines for liquids or gases where close controls over the smoothness and dimensions of the
26、bore are required to ensure uniform flow characteristics. This European Standard applies to capillary tubes in straight lengths, or in coils, in the size range up to and including 6,10 mm outside diameter and from 0,30 mm up to and including 4,45 mm inside diameter which are intended for restrictor
27、applications. 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 it
28、s application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 1057:2006, Copper and copper alloys Seamless, round copper tubes for water and gas in sanitary and heating applications EN
29、 1655, Copper and copper alloys Declarations of conformity EN 10204, Metallic products Types of inspection documents 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 (
30、ISO 6892-1) 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 1057:2006 and the following 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 co
31、ntinuous 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, 3.5 3.3 deviation from circular form difference between the maximum and minimum outside diameters measured at any one cross-section of
32、the tube SOURCE: EN 1057:2006, 3.6 3.4 capillary tube tube of small inside diameter with an inside surface of high quality and conforming to close diameter tolerances Note 1 to entry: It is subject to special tests to ensure precision and uniformity of bore, having been specially cleaned. DIN EN 124
33、50:2013-01 EN 12450:2012 (E) 5 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 based on the designation system given in ISO 1190-1. NOTE Although material symbol designations used in this stand
34、ard 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 purpo
35、ses of this 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 strength and elongation requireme
36、nts; H. Material condition designated by the minimum value of hardness requirement for the product with mandatory hardness requirements. Exact conversion between the material conditions designated R. and H. is not possible. Material condition is designated by only one of the above designations. 4.3
37、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 Eur
38、opean 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 12450); material condition designation (see Table 1); nominal cross-section
39、al dimensions (outside diameter inside diameter). The derivation of a product designation is shown in the following example. DIN EN 12450:2013-01 EN 12450:2012 (E) 6 EXAMPLE Tube conforming to this standard, in material condition R240, nominal outside diameter 4,78 mm, nominal inside diameter 3,30 m
40、m, shall be designated as follows: Tube EN 12450 R240 4,78 3,30 Denomination Number of this European Standard Material condition designation Nominal cross-sectional dimensions in millimetres 5 Ordering information In order to facilitate the enquiry, order and confirmation of order procedures between
41、 the purchaser and the supplier, the purchaser shall state on his enquiry and order the following information: a) quantity of product required (length or mass); b) denomination (Tube); c) number of this European Standard (EN 12450); d) material condition designation (see 4.2 and Table 1); e) nominal
42、 cross-sectional dimensions (outside diameter inside diameter); f) for straight lengths, the length required; g) for coils, the coil mass required; It is recommended that the product designation, as described in 4.3, is used for items b) to e). In addition, the purchaser shall also state on the enqu
43、iry and order any of the following, if required: h) whether flow requirements are to be met, and if so, the test details (see 6.5); i) whether special internal surface quality is required (see 6.6); j) whether a declaration of conformity is required (see 9.1); k) whether an inspection document is re
44、quired, and if so, which type (see 9.2); l) whether there are any special requirements for marking, packaging or labelling (see Clause 10). EXAMPLE Ordering details for 1 000 m of tube conforming to EN 12450, in material condition R240, nominal outside diameter 4,78 mm, nominal inside diameter 3,30
45、mm, nominal length 3 000 mm. 1 000 m Tube EN 12450 R240 4,78 3,30 nominal length 3 000 mm DIN EN 12450:2013-01 EN 12450:2012 (E) 7 6 Requirements 6.1 Composition The composition shall conform to the following requirements: Cu + Ag: min. 99,90 % 0,015 % P 0,040 % This copper is designated either Cu-D
46、HP or CW024A. 6.2 Mechanical properties The properties shall conform to the appropriate requirements given in Table 1. The tests shall be carried out in accordance with either 8.2 (tensile test) or 8.3 (hardness test). Table 1 Mechanical properties Designations Tensile strength Elongation Hardness R
47、mA HV Material Material condition N/mm2% Symbol Number min. max. min. min. max. Cu-DHP CW024A R240 240 15 H050 50 90 R320 320 5 H095 95 125 R395 395 515 H110 110 NOTE 1 N/mm2is equivalent to 1 MPa. 6.3 Dimensions and tolerances 6.3.1 General The geometrical properties of the tubes are defined by outside diameter, inside diameter and length. The dimensional tolerances are applied on the outside diameter, inside diameter and length. 6.3.2 Outside diameter and inside diameter The diameters of the tubes shall conform to the following tolerances: outside diameter; inside diamet
