1、BSI Standards PublicationBS EN 10305-6:2016Steel tubes for precisionapplications Technicaldelivery conditionsPart 6: Welded cold drawn tubes forhydraulic and pneumatic power systemsBS EN 10305-6:2016 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 10305-6:2016.I
2、t supersedes BS EN 10305-6:2005 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee ISE/110, Steel Tubes, and Iron and Steel Fittings.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not
3、purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2016.Published by BSI Standards Limited 2016ISBN 978 0 580 90485 1ICS 77.140.75Compliance with a British Standard cannot confer immunity fromlegal obligat
4、ions.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 30 April 2016.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dBS EN 10305-6:2016EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 10305-6 March 2016 ICS 77.140.7
5、5 Supersedes EN 10305-6:2005English Version Steel tubes for precision applications - Technical delivery conditions - Part 6: Welded cold drawn tubes for hydraulic and pneumatic power systems Tubes de prcision en acier - Conditions techniques de livraison - Partie 6 : Tubes souds tirs froid pour circ
6、uits hydrauliques et pneumatiques Przisionsstahlrohre - Technische Lieferbedingungen -Teil 6: Geschweite kaltgezogene Rohre fr Hydraulik-und Pneumatik-Druckleitungen This European Standard was approved by CEN on 18 January 2016. CEN members are bound to comply with the CEN/CENELEC Internal Regulatio
7、ns 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. T
8、his 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 me
9、mbers 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, Port
10、ugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey andUnited Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2016 CEN All rights of exploitation in any fo
11、rm and by any means reserved worldwide for CEN national Members. Ref. No. EN 10305-6:2016 EBS EN 10305-6:2016EN 10305-6:2016 (E) 2 Contents Page European foreword . 3 1 Scope 4 2 Normative references 4 3 Terms and definitions . 5 4 Symbols . 6 5 Classification and designation 6 5.1 Classification .
12、6 5.2 Designation 6 6 Information to be supplied by the purchaser . 6 6.1 Mandatory information 6 6.2 Options 6 6.3 Example of an order . 7 7 Manufacturing process 7 7.1 Steelmaking process 7 7.2 Tube manufacture and delivery conditions 7 8 Requirements . 8 8.1 General 8 8.2 Chemical composition . 8
13、 8.3 Mechanical properties . 9 8.4 Appearance and soundness . 9 8.5 Dimensions and tolerances 10 9 Inspection . 14 9.1 Type of inspection 14 9.2 Inspection documents 14 9.3 Summary of inspection and testing . 15 10 Sampling 15 10.1 Test unit . 15 10.2 Preparation of samples and test pieces . 16 11 T
14、est methods . 16 11.1 Tensile test . 16 11.2 Drift expanding test . 16 11.3 Dimensional inspection . 17 11.4 Roughness measurement 17 11.5 Visual examination 17 11.6 Non-destructive testing 17 11.7 Retests, sorting and reprocessing 18 12 Marking 18 13 Protection and packaging . 18 13.1 Protection .
15、18 13.2 Packaging 18 Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of Directive 2014/68/EU aimed to be covered 19 Bibliography . 20 BS EN 10305-6:2016EN 10305-6:2016 (E) 3 European foreword This document (EN 10305-6:2016) has been prepared by Techn
16、ical Committee ECISS/TC 110 “Steel tubes and iron and steel fittings”, the secretariat of which is held by UNI. 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 September 2016 and conflicting natio
17、nal standards shall be withdrawn at the latest by September 2016. 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 supers
18、edes EN 10305-6:2005. In comparison with the previous edition, the following technical changes have been made: a) References were adapted; b) The options were renumbered in such a way that now throughout all parts the number of options are the same; c) Precision tubes will now be preferably ordered
19、according to outer diameter and wall thickness; d) The drift expanding test is now beside the tensile test the second test for the verification of the mechanical properties; e) Editorial updates. This document has been prepared under a mandate given to CEN by the European Commission and the European
20、 Free Trade Association, and supports essential requirements of Directive 2014/68/EU. For relationship with Directive 2014/68/EU, see informative Annex ZA, which is an integral part of this document. EN 10305, Steel tubes for precision applications - Technical delivery conditions consists of the fol
21、lowing parts: Part 1: Seamless cold drawn tubes Part 2: Welded cold drawn tubes Part 3: Welded cold sized tubes Part 4: Seamless cold drawn tubes for hydraulic and pneumatic power systems Part 5: Welded cold sized square and rectangular tubes Part 6: Welded cold drawn tubes for hydraulic and pneumat
22、ic power systems 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, Former Yugoslav Republic of Maced
23、onia, 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. BS EN 10305-6:2016EN 10305-6:2016 (E) 4 1 Scope This European Standard
24、 specifies the technical delivery conditions for welded cold drawn tubes of circular cross section for use in hydraulic and pneumatic power systems. Tubes according to this part of EN 10305 are characterized by having precisely defined tolerances on dimensions and a specified surface roughness. The
25、allowed pressure rates and upper temperatures are the responsibility of the customer in accordance with the state of the art and in application of the safety coefficients specified in the applicable regulations, codes or standards. Concerning the lower temperature range applicability the impact ener
26、gy requirements are given at 0 C. NOTE Once this standard is published in the Official Journal of the European Union (OJEU) under Directive 2014/68/EU, presumption of conformity to the Essential Safety Requirements (ESRs) of Directive 2014/68/EU is limited to technical data of materials in this stan
27、dard and does not presume adequacy of the material to a specific item of equipment. Consequently, the assessment of the technical data stated in this material standard against the design requirements of this specific item of equipment to verify that the ESRs of the Pressure Equipment Directive are s
28、atisfied, needs to be done. 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 d
29、ocument (including any amendments) applies. EN 10020:2000, Definition and classification of grades of steel EN 10021:2006, General technical delivery conditions for steel products EN 10027-1, Designation systems for steels - Part 1: Steel names EN 10027-2, Designation systems for steels - Part 2: Nu
30、merical system EN 10052:1993, Vocabulary of heat treatment terms for ferrous products EN 10168:2004, Steel products - Inspection documents - List of information and description EN 10204:2004, Metallic products - Types of inspection documents EN 10266:2003, Steel tubes, fittings and structural hollow
31、 sections - Symbols and definitions of terms for use in product standards EN ISO 377, Steel and steel products - Location and preparation of samples and test pieces for mechanical testing (ISO 377:2013) EN ISO 2566-1, Steel - Conversion of elongation values - Part 1: Carbon and low alloy steels (ISO
32、 2566-1) EN ISO 4287, Geometrical product specifications (GPS) - Surface texture: Profile method - Terms, definitions and surface texture parameters (ISO 4287) EN ISO 6892-1, Metallic materials - Tensile testing - Part 1: Method of test at room temperature (ISO 6892-1) EN ISO 8492, Metallic material
33、s - Tube - Flattening test (ISO 8492) BS EN 10305-6:2016EN 10305-6:2016 (E) 5 EN ISO 8493, Metallic materials - Tube - Drift-expanding test (ISO 8493) EN ISO 10893-1, Non-destructive testing of steel tubes - Part 1: Automated electromagnetic testing of seamless and welded (except submerged arc-welde
34、d) steel tubes for the verification of hydraulic leaktightness (ISO 10893-1) EN ISO 10893-2, Non-destructive testing of steel tubes - Part 2: Automated eddy current testing of seamless and welded (except submerged arc-welded) steel tubes for the detection of imperfections (ISO 10893-2) EN ISO 10893-
35、3, Non-destructive testing of steel tubes - Part 3: Automated full peripheral flux leakage testing of seamless and welded (except submerged arc-welded) ferromagnetic steel tubes for the detection of longitudinal and/or transverse imperfections (ISO 10893-3) EN ISO 10893-10, Non-destructive testing o
36、f steel tubes - Part 10: Automated full peripheral ultrasonic testing of seamless and welded (except submerged arc-welded) steel tubes for the detection of longitudinal and/or transverse imperfections (ISO 10893-10) ISO 11484:2009, Steel products - Employers qualification system for non-destructive
37、testing (NDT) personnel 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 10020:2000, EN 10021:2006, EN 10052:1993, EN 10266:2003 and the following apply. 3.1 employer organization for which a person works on a regular basis Note 1 to entry: The employe
38、r can be either the tube manufacturer or a third party organization providing services, such as non-destructive testing (NDT). 3.2 manufacturer party to produce and to deliver tubes in accordance with this document Note 1 to entry: Where tubes are delivered by an intermediary, see EN 10021:2006, Cla
39、use 6. 3.3 imperfection discontinuity in the wall or on the pipe surfaces detectable by methods described in this document Note 1 to entry: Imperfections with a size complying with the acceptance criteria specified in this document are considered to have no practical implication on the intended use
40、of the product. 3.4 defect imperfection of a size not complying with the acceptance criteria specified in this document Note 1 to entry: Defects are considered to adversely affect or limit the intended use of the product. BS EN 10305-6:2016EN 10305-6:2016 (E) 6 4 Symbols For the purposes of this par
41、t of EN 10305, the symbols given in EN 10266:2003 and the following apply. C1, C2 category conformity indicators (see 7.2.2 and 7.2.3) 5 Classification and designation 5.1 Classification In accordance with the classification system in EN 10020, the steel grades given in Table 1 are non-alloy quality
42、 steels. 5.2 Designation For the tubes covered by this document, the steel designation consists of the number of this document (EN 10305-6) plus either: a) the steel name in accordance with EN 10027-1; or b) the steel number in accordance with EN 10027-2. 6 Information to be supplied by the purchase
43、r 6.1 Mandatory information The following information shall be obtained by the manufacturer at the time of enquiry and order: a) quantity (mass or total length or number); b) term “tube”; c) dimensions, preferably by outside diameter D and wall thickness T (or other pair of dimensions), (see 8.5.1.1
44、 and Table 4); d) steel designation (see 5.2); e) type of tube length (see 8.5.2); f) type of inspection certificate (see 9.1). 6.2 Options A number of options are specified in this document and these are listed below. In the event that the purchaser does not indicate his wish to implement any of th
45、ese options at the time of enquiry and order, the tubes shall be supplied in accordance with the basic specification (see 6.1). Option 7: Reduced internal roughness of 2 m (see 8.4.3); Option 8: Measurement of surface roughness (see 8.4.4); Option 12: Non-destructive testing for the detection of lon
46、gitudinal imperfections (see 8.4.7); Option 21: another specified length and/or tolerance (see 8.5.2); Option 22: Reduced maximum deviation from straightness (see 8.5.3); BS EN 10305-6:2016EN 10305-6:2016 (E) 7 Option 24: higher test pressure for hydrostatic test (see 11.6.2); Option 28: alternative
47、 marking (see Clause 12); Option 31: protection by phosphatization (see 13.1); Option 32: protection by electrolytical zinc coating (see 13.1); Option 37: protection of tube ends (see 13.1); Option 38: unbundled tubes or specific method of packaging (see 13.2). 6.3 Example of an order 1 000 tubes wi
48、th an outside diameter of D = 20 mm and a specified wall thickness of T = 2,5 mm in accordance with this document, made of steel grade E235, delivered in standard lengths with an inspection certificate 3.1 in accordance with EN 10204:2004: 1 000 tubes D 20 x T 2,5 EN 10305-6 E235 standard length ins
49、pection certificate 3.1 7 Manufacturing process 7.1 Steelmaking process The steel making process is at the discretion of the manufacturer with the exception that the open hearth (Siemens-Martin) process shall not be employed unless in combination with a secondary steelmaking or ladle refining process. Steels shall be fully killed. NOTE This excludes the use of rimming, balanced or semi-killed steel. 7.2 Tube manufacture and delivery conditions 7.2.1 The tubes shall be manufactured from electric welded tubes by cold drawing.
