1、 g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58Technical delivery conditionsThe European Standard EN 10255:2004, incorporating amendment A1:2007,
2、has the status of a British StandardICS 23.040.10Non-alloy steel tubes suitable for welding and threading BRITISH STANDARDBS EN 10255:2004Incorporating amendment no. 1 and corrigendum no. 1BS EN 10255:2004This British Standard was published under the authority of the Standards Policy and Strategy Co
3、mmittee on 24 August 2004 BSI 2007ISBN 0 580 44330 2tubes and fittings”, given under the EU Construction 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 the Official Journal o
4、f the European Communities. Although CE marking is not currently mandatory in the UK, it is considered as industry best practice and this is reflected in Regulation 7 of the UK Building Regulations.The European Commission in consultation with Member States have agreed a transition period for the coe
5、xistence 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 of the European Standard, during which any required changes to national regulations are to be made, foll
6、owed 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 At the end of this coexistence period, the national standard(s) will be withdrawn.EN 10255 is the subject of transitional arrangements agreed under the Commission mandate. In the UK, the corresponding national stan
7、dard was: 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tubes and tubulars and for plain end steel tubes suitable for welding or for screwing to BS 21 pipe threads;which was withdrawn in June 2006.The UK participation in its preparation was entrusted to Technical Committee ISE/8, Steel
8、pipes. 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. In particular attention is drawn to the different level
9、s of attestation specified for CE marked products in Annex ZA (Table ZA.2.1) depending on whether the product will be used for the conveyance of water or gas/fuel.Compliance with this Standard does not automatically imply a presumption that the product is suitable for the transport of water intended
10、 for human consumption, within the meaning of European Directive 89/106/EEC (also known as the Construction Products Directive). Until the proposed European Acceptance Scheme for construction products in contact with water intended for human consumption (or an alternative programme put forward by th
11、e European Commission to revise European Commission Mandate M136) is in place, and this standard revised to reflect this, products in accordance with this Standard may be used in applications involving the transport of water for human consumption if they conform to the relevant national, regional or
12、 local regulatory provisions applicable in the place of use. In the UK, products and processes need to be approved by the Drinking Water Inspectorate (DWI). This involves obtaining approvals under regulation 31 for both the coating and the coating applicator. For more details please refer to http:/w
13、ww.dwi.gov.uk/cpp/index.shtm.Compliance with a British Standard cannot confer immunity from legal obligations.Amendments issued since publicationAmd. No. Date Comments17127 31 May 2007 See national foreword17157 Corrigendum No. 131 May 2007 Correction of national foreword wordingstandard may be used
14、 for CE marking purposes, is subject to an announcement in National 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 !“. T
15、ags indicating changes to CEN 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 EUROPEAN STAN
16、DARD 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 threading - Technical delivery conditions Tubes en acier non-alli filetables et soudables - Conditions techniques de livraison Rohre a
17、us unlegiertem Stahl mit Eignung zum Schweien und Gewindeschneiden - Technische Lieferbedingungen This European Standard was approved by CEN on 27 May 2004 and includes Amendment 1 approved by CEN on on 5 March 2007. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which sti
18、pulate 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 Management Centre or to any CEN member. This European Standar
19、d 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 Management Centre has the same status as the official versions. CEN members are the national stand
20、ards bodies of 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 Kin
21、gdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2007 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 10255:2004+A1:20
22、07: 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 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
23、 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 General8 7.2 Alternative finishes and protection of the tube ends.8 7.3 Suitability for hot dip galvanizing 8 7.4 Hot dip galvanized co
24、ndition8 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 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
25、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 protective coating 14 12 !Evaluation of conformity .14 12.1 General14 12.2 Initial type testing (ITT) .14 12.2.1 General14 12.2.2 Ch
26、aracteristics.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+A1:2007 (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
27、 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 diameter, thread size, and nominal diameter17 Annex B (normative) Types of tubes with wall thickness different from medium and he
28、avy 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 Products Directive for applications covered by Mandate M/131.20 ZA.1 Scope and relevant characteristics .20 ZA.2 Procedure for at
29、testation 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+A1:2007) has been prepared by Technical Committee ECISS/TC 29 “Steel tubes and fittings for steel tubes”, the secretariat of whic
30、h 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 2007 and conflicting national standards shall be withdrawn at the latest by October 2007. This document includes Amendment 1, appro
31、ved 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 ! “. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and
32、 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. This European Standard has been derived, with modifications, from ISO 65 “Carbon steel tube suitable for screwing in accordance wi
33、th ISO 7/1”. 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, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ire
34、land, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EN 10255:2004+A1:2007 (E) 5 1 Scope This document specifies the requirements for circular non-alloy steel tubes suitable for welding a
35、nd 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 (thread size 1/8 to 6) in two series, medium and heavy, and three types of designated thicknesses. NOTE Tubes manufactured according to
36、 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 the application of this document. For dated references, only the edition cited applies. For undated references, the latest editio
37、n of the referenced document (including any amendments) applies. The requirements of this European Standard rule when they differ from those in the standards and documents referred to below: EN 10002-1, Metallic materials - Tensile testing - Part 1: Method of test at ambient temperature EN 10020, De
38、finition 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“ EN 10027-2, Designation systems for steels - Part 2: Numerical system EN 10204, Metallic products - Types of inspection documents
39、 !deleted text“ EN 10240, Internal and/or external protective coatings for steel tubes - Specification for hot dip galvanized coatings applied in automatic plants EN 10241, Steel threaded pipe fittings EN 10242, Threaded pipe fittings in malleable cast iron EN 10246-1, Non destructive testing of ste
40、el tubes - Part 1: Automatic electromagnetic testing of seamless and welded (except submerged arc welded) ferromagnetic steel tubes for verification of hydraulic leak-tightness EN 10226-1Pipe threads where pressure-tight joints are made on the threads - Part 1: Taper external threads and parallel in
41、ternal threads - Dimensions, tolerances and designation !EN 10226-2“, Pipe threads where pressure-tight joints are made on the threads - Part 2: Taper external threads and taper internal threads - Dimensions, tolerances and designation EN 10266:2003, Steel tubes, fittings and structural hollow secti
42、ons - 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 test methods (ISO 1461:1999) EN 10255:2004+A1:2007 (E) 6 EN ISO 2566-1, Steel - Conversion of elongation values - Part 1: Carbon and
43、 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 - Flattening test (ISO 8492:1998) EN ISO 9001, Quality management systems - Requirements (ISO 9001:2000)“ 3 Terms and definitions For the p
44、urposes 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 conjunction with the diameter to define the thickness and the mass per unit length of the tube 3.2 Bare tube tube whose surface i
45、s as manufactured without subsequent coating 4 Classification and designation The steel specified in this document is classified as a non-alloy quality steel in accordance with EN 10020. The steel name S195 T has been established in accordance with EN 10027-1. The steel number 1.0026 has been establ
46、ished 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 purchaser at the time of enquiry and order: a) Quantity (mass or total length or number of tubes); b) Seamless or Welded tube manufa
47、cturing 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 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).
48、 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 these options at the time of enquiry and order, the tubes shall be supplied in accordance with the basic specification (see 5.1). 1
49、) 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 foreign 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 dip galvanized to EN 10240, coating quality to be sp
