1、BRITISH STANDARDBS EN 10255:2004Incorporating amendment no. 1Non-alloy steel tubes suitable for welding and threading Technical delivery conditionsThe European Standard EN 10255:2004, incorporating amendment A1:2007, has the status of a British StandardICS 23.040.10g49g50g3g38g50g51g60g44g49g42g3g58
2、g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 10255:2004This British Standard was published under the authority of the Standards Policy and Strategy Committee on 24 August 20
3、04 BSI 2007ISBN 0 580 44330 2National forewordThis British Standard was published by BSI. It is the UK implementation of EN 10255:2004, incorporating amendment A1:2007.The start and finish of text introduced or altered by amendment is indicated in the text by tags !“. Tags indicating changes to CEN
4、text carry the number of the CEN amendment. For example, text altered by CEN amendment A1 is indicated by !“.EN 10255 is a candidate “harmonized” European Standard and fully takes into account the requirements of the European Commission mandate M131 “Steel tubes and fittings”, given under the EU Con
5、struction Products Directive (89/106/EEC), and intended to lead to CE marking. The date of applicability of EN 10255 as a harmonized European Standard, i.e. the date after which this standard may be used for CE marking purposes, is subject to an announcement in the Official Journal of the European C
6、ommunities.The Commission in consultation with Member States have agreed a transition period for the co-existence of harmonized European Standards and their corresponding national standard(s). It is intended that this period will comprise a period, usually nine months, after the date of availability
7、 of the European Standard, during which any required changes to national regulations are to be made, followed by a further period, usually of 12 months, for the implementation of CE marking. At the end of this coexistence period, the national standard(s) will be withdrawn.EN 10255 is the subject of
8、transitional arrangements agreed under the Commission mandate. In the UK, the corresponding national standard is: BS 1387:1985, Specification for screwed and socketed steel tubes and tubulars and for plain end steel tubes suitable for welding or for screwing to BS 21 pipe threads;and based on this t
9、ransition period of twenty-one months, BS 1387:1985 would be withdrawn in June 2006.NOTE This date is approximate. Users of this standard should contact BSI Customer Services for confirmation of withdrawal.The UK participation in its preparation was entrusted to Technical Committee ISE/8, Steel pipe
10、s. A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity fr
11、om legal obligations.Amendments issued since publicationAmd. No. Date Comments17127 31 May 2007 See national forewordEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 10255:2004+A1 April 2007 ICS 23.040.10 Supersedes EN 10255:2004English Version Non-Alloy steel tubes suitable for welding and thre
12、ading - Technical delivery conditions Tubes en acier non-alli filetables et soudables - Conditions techniques de livraison Rohre aus unlegiertem Stahl mit Eignung zum Schweien und Gewindeschneiden - Technische Lieferbedingungen This European Standard was approved by CEN on 27 May 2004 and includes A
13、mendment 1 approved by CEN on on 5 March 2007. 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 concerni
14、ng 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 the responsibility of a CEN member into its own l
15、anguage 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, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania
16、, 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 Management Centre: rue de Stassart, 36 B-1050 Brussels 2007 CEN
17、 All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 10255:2004+A1:2007: EEN 10255:2004+A1:2007 (E) 2 Contents page Foreword4 1 Scope 5 2 Normative references 5 3 Terms and definitions .6 4 Classification and designation.6 5 Information to
18、 be !obtained from“ the purchaser.6 5.1 Mandatory information6 5.2 Options .6 5.3 Examples of ordering 7 5.3.1 By outside diameter and thickness .7 5.3.2 By thread size and series7 6 Manufacturing process .7 6.1 Steelmaking process.7 6.2 Tube manufacturing process .7 7 Delivery conditions8 7.1 Gener
19、al8 7.2 Alternative finishes and protection of the tube ends.8 7.3 Suitability for hot dip galvanizing 8 7.4 Hot dip galvanized condition8 8 Requirements.8 8.1 General8 8.2 Chemical composition and mechanical properties9 8.3 Appearance 9 8.4 Dimensions, masses and tolerances.9 8.5 !Leak tightness 11
20、 8.6 Dangerous substances .11 8.7 Reaction to fire.12 9 Inspection .12 9.1 Type of inspection .12 9.2 Inspection documents.12 9.3 Tensile test .12 9.4 Bend test.12 9.5 Flattening test 13 9.6 Leak tightness test 13 9.7 Dimensional inspection 13 9.8 Visual examination 13 10 Marking .13 11 Temporary pr
21、otective coating 14 12 !Evaluation of conformity .14 12.1 General14 12.2 Initial type testing (ITT) .14 12.2.1 General14 12.2.2 Characteristics.15 12.2.3 Product families.15 12.2.4 Use of historical data 15 12.2.5 Deemed to satisfy provisions and use of reference tabulated data15 EN 10255:2004+A1:20
22、07 (E) 3 12.2.6 Sampling.15 12.3 Factory production control (FPC) 15 12.3.1 General15 12.3.2 Equipment 16 12.3.3 Raw materials and components.16 12.3.4 Product testing and evaluation 16 12.3.5 Inspection.16 12.3.6 Non-conforming products 16 Annex A (informative) Correlation between specified outside
23、 diameter, thread size, and nominal diameter17 Annex B (normative) Types of tubes with wall thickness different from medium and heavy series.18 B.1 General18 B.2 Requirements.18 B.3 Marking .18 Annex ZA (informative) !Clauses of this European Standard addressing the provisions of the EC Construction
24、 Products Directive for applications covered by Mandate M/131.20 ZA.1 Scope and relevant characteristics .20 ZA.2 Procedure for attestation of conformity of pipes.21 ZA.2.2 Declaration of conformity .22 ZA.3 CE marking and labelling23 EN 10255:2004+A1:2007 (E) 4 Foreword This document (EN 10255:2004
25、+A1:2007) has been prepared by Technical Committee ECISS/TC 29 “Steel tubes and fittings for steel tubes”, the secretariat of which is held by UNI. This document shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by October 2
26、007 and conflicting national standards shall be withdrawn at the latest by October 2007. This document includes Amendment 1, approved by CEN on 2007-03-05. This document supersedes EN 10255:2004. The start and finish of text introduced or altered by amendment is indicated in the text by tags ! “. Th
27、is 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 89/106/EEC. For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document.
28、This European Standard has been derived, with modifications, from ISO 65 “Carbon steel tube suitable for screwing in accordance with ISO 7/1”. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Stand
29、ard: Austria, Belgium, Bulgaria, 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 and United Kingdom. EN 1
30、0255:2004+A1:2007 (E) 5 1 Scope This document specifies the requirements for circular non-alloy steel tubes suitable for welding and threading and provides a number of options for the finish of tube ends and coatings. This document covers tubes of specified outside diameter 10,2 mm to 165,1 mm (thre
31、ad size 1/8 to 6) in two series, medium and heavy, and three types of designated thicknesses. NOTE Tubes manufactured according to this document can be used for the conveyance of fluids as well as for other applications. 2 Normative references The following referenced documents are indispensable for
32、 the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. The requirements of this European Standard rule when they differ from those in the standards and document
33、s referred to below: EN 10002-1, Metallic materials - Tensile testing - Part 1: Method of test at ambient temperature EN 10020, Definition and classification of grades of steel EN 10021, !General technical delivery for steel products“ EN 10027-1, Designation systems for steel - !Part 1: Steel names“
34、 EN 10027-2, Designation systems for steels - Part 2: Numerical system EN 10204, Metallic products - Types of inspection documents !deleted text“ EN 10240, Internal and/or external protective coatings for steel tubes - Specification for hot dip galvanized coatings applied in automatic plants EN 1024
35、1, Steel threaded pipe fittings EN 10242, Threaded pipe fittings in malleable cast iron EN 10246-1, Non destructive testing of steel tubes - Part 1: Automatic electromagnetic testing of seamless and welded (except submerged arc welded) ferromagnetic steel tubes for verification of hydraulic leak-tig
36、htness EN 10226-1Pipe threads where pressure-tight joints are made on the threads - Part 1: Taper external threads and parallel internal threads - Dimensions, tolerances and designation !EN 10226-2“, Pipe threads where pressure-tight joints are made on the threads - Part 2: Taper external threads an
37、d taper internal threads - Dimensions, tolerances and designation EN 10266:2003, Steel tubes, fittings and structural hollow sections - Symbols and definitions of terms for use in product standards EN ISO 1461, Hot dip galvanized coatings on fabricated iron and steel articles - Specifications and te
38、st methods (ISO 1461:1999) EN 10255:2004+A1:2007 (E) 6 EN ISO 2566-1, Steel - Conversion of elongation values - Part 1: Carbon and low alloy steels (ISO 2566-1:1984) !EN ISO 8491, Metallic materials - Tube (in full section) - Bend test (ISO 8491:1998) EN ISO 8492, Metallic materials - Tube - Flatten
39、ing test (ISO 8492:1998) EN ISO 9001, Quality management systems - Requirements (ISO 9001:2000)“ 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 10020:2000, EN 10021:1993, EN 10266:2003 and the following apply. 3.1 Series and Types designation used in
40、 conjunction with the diameter to define the thickness and the mass per unit length of the tube 3.2 Bare tube tube whose surface is as manufactured without subsequent coating 4 Classification and designation The steel specified in this document is classified as a non-alloy quality steel in accordanc
41、e with EN 10020. The steel name S195 T has been established in accordance with EN 10027-1. The steel number 1.0026 has been established in accordance with EN 10027-2. 5 Information to be !obtained from“ the purchaser 5.1 Mandatory information The following information shall be !obtained from“ the pu
42、rchaser at the time of enquiry and order: a) Quantity (mass or total length or number of tubes); b) Seamless or Welded tube manufacturing process (S or W); c) The term “tube”; d) The number of this European Standard (EN 10255); e) Specified outside diameter (D) in millimetres or thread size (R) (see
43、 Table 2 or Annex B); f) Wall thickness (T) in millimetres or series (M or H) (see Table 2) or type (L or L1 or L2) (see Annex B). 5.2 Options A number of options are specified in this document and these are listed below. In the event that the purchaser does not indicate a wish to implement any of t
44、hese options at the time of enquiry and order, the tubes shall be supplied in accordance with the basic specification (see 5.1). 1) Threaded ends (see 7.2); 2) Tube with socket (see 7.2); EN 10255:2004+A1:2007 (E) 7 3) Socket type to be specified (see 7.2); 4) Closed ends to prevent ingress of forei
45、gn matter (see 7.2); 5) Thread varnish or thread protection (see 7.2); 6) Suitable for galvanizing to EN ISO 1461, or to EN 10240 coating quality other than A.1 (see 7.3); 7) Suitable for galvanizing to EN 10240 coating quality A.1 (see 7.3); 8) Hot dip galvanized to EN ISO 1461 (see 7.4); 9) Hot di
46、p galvanized to EN 10240, coating quality to be specified (see 7.4); 10) Delivery length (see 8.4.10); 11) Inspection document type 2.2 (see 9.2); 12) Temporary protective coating (see Clause 11). 5.3 Examples of ordering 5.3.1 By outside diameter and thickness To order 6000 metres of seamless tubes
47、 in accordance with EN 10255, with 26.9 mm outside diameter, 2.6 mm wall thickness, galvanized according to EN 10240 - coating quality A.1, threaded. EXAMPLE 6000 m - S tubes - 26,9 x 2,6 - EN 10255 - Options 1 and 9: A.1. 5.3.2 By thread size and series To order 80 tonnes of welded tubes in accorda
48、nce with EN 10255, with thread size 2, series medium, in standard length of 6,4 m with caps or plugs fitted to the ends. EXAMPLE 80 t W tubes 2 M - EN 10255 - Options 4 and 10: 6.4 m. 6 Manufacturing process 6.1 Steelmaking process The steelmaking process is at the discretion of the manufacturer. Th
49、e steel shall be fully killed. 6.2 Tube manufacturing process The tubes shall be manufactured by a seamless (S) or longitudinally welded (W) process, as specified (see 5.1 b). Cold formed tubes of Type L shall be heat treated (see B.2). The other series and types of tubes may be heat treated at the discretion of the manufacturer Tubes shall not include welds used to join lengths of strip prior to forming the tube. EN 10255:2004+A1:2007 (E) 8 7 Delivery conditions 7.1 General Unless otherwise specified (see 7.2 to 7.4) the tubes shall be supplied ba
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