1、BRITISH STANDARD BS EN 39:2001 Loose steel tubes for tube and coupler scaffolds Technical delivery conditions The European Standard EN 39:2001 has the status of a British Standard ICS 77.140.75; 91.220 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBS EN 39:2001 This British S
2、tandard, having been prepared under the direction of the Sector Committee for Building and Civil Engineering, was published under the authority of the Standards Committee and comes into effect on 15 August 2001 BSI 07-2001 ISBN 0 580 37960 4 National foreword This British Standard is the official En
3、glish language version of EN 39:2001. It supersedes BS 1139-1.1:1990 which is withdrawn. This standard includes tube with a wall thickness of 3,2 mm as well as the previous 4,0 mm. The other principle changes are contained in the European foreword of this standard. The UK participation in its prepar
4、ation was entrusted by Technical Committee B/514, Access and support equipment, and ISE/8, Steel pipes, to Subcommittee B/514/28, Props, tubes and couplers, which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-re
5、ferences The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Ca
6、talogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the
7、text; present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an insi
8、de front cover, the EN title page, pages 2 to 16, an inside back cover and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 39 Ap
9、ril 2001 ICS 77.140.75; 91.220 Supersedes HD 1039:1990 English version Loose steel tubes for tube and coupler scaffolds Technical delivery conditions Tubes libres en acier pour chafaudages tubes et raccords Conditions techniques de livraison Systemunabhngige Stahlrohre fr die Verwendung in Trag- und
10、 Arbeitsgersten Technische Lieferbedingungen This European Standard was approved by CEN on 18 January 2001. 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 alterat
11、ion. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the 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 translatio
12、n under the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy,
13、Luxembourg, Netherlands, Norway, Portugal, 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 2001 CEN All rights of exploitation in any form and by
14、 any means reserved worldwide for CEN national Members. Ref. No. EN 39:2001 EPage 2 EN 39:2001 BSI 07-2001 Contents Foreword3 1 Scope 5 2 Normative references 5 3 Terms and definitions6 4 Classification and designation.6 4.1 Classification6 4.2 Designation 6 5 Information to be supplied by the purch
15、aser6 5.1 Mandatory information .6 5.2 Options.7 5.3 Examples of ordering .7 6 Manufacturing process .7 6.1 Steelmaking process7 6.2 Tube manufacture7 7 Requirements .8 7.1 General 8 7.2 Chemical composition and mechanical properties 8 7.3 Appearance8 7.4 Straightness .8 7.5 External weld bead and p
16、reparation of ends .9 7.6 Dimensions, mass and tolerances.9 8 Inspection .10 8.1 Type of inspection10 8.2 Inspection documents 10 8.3 Summary of inspection and testing11 9 Sampling .12 9.1 Frequency of tests12 9.2 Preparation of samples and test pieces.12 10 Test methods13 10.1 Tensile test.13 10.2
17、Flattening test.13 10.3 Visual examination.13 10.4 Dimensional inspection 13 11 Retests, sorting and reprocessing.13 12 Marking .14 13 Coating14 Annex A (informative) Values for design of structures .15 Bibliography 16Page 3 EN 39:2001 BSI 07-2001 Foreword This European Standard has been prepared by
18、 Technical Committee ECISS/TC 29, Steel tubes and fittings for steel tubes, the Secretariat of which is held by UNI, in conjunction with CEN/TC 53, Temporary works equipment. This European Standard replaces HD 1039:1990. This European Standard shall be given the status of a national standard, either
19、 by publication of an identical text or by endorsement, at the latest by October 2001, and conflicting national standards shall be withdrawn at the latest by October 2001. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to
20、implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. This European Standard is derived with modifications from Harmonizatio
21、n Document HD 1039, Steel tubes for falsework and working scaffolds Requirements, tests. This European Standard cancels and replaces HD 1039:1990, Steel tubes for falsework and working scaffolds Requirements, tests. The significant technical changes are: tubes will now be supplied galvanized unless
22、an option for them to be supplied without a coating (bare) or painted is specified; all tubes are now required to be suitable for galvanizing; requirements for the coating previously contained in annexes A and B are now covered (in accordance with CEN rules) by reference to European or International
23、 Standards and are not included in the text of this standard; tubes may only be manufactured using killed steel; the maximum tensile strength of the tubes has been increased to 520 MPa 1) ; a maximum manganese content has been introduced and the sulfur and phosphorus contents reduced; the mass toler
24、ance for single tubes has been changed from 8 % to 7,5 %. The maximum single tube mass tolerance and the mass tolerance for batches of tubes have been deleted from the standard (outside diameter tolerances have not been changed); length types, standard or approximate or exact, and tolerances on thos
25、e length types, are now specified; a flattening test requirement has been introduced for welded tubes; requirements for the type and content of inspection documents have been introduced for use when inspection documentation is specified; specific inspection is now permitted as an option with testing
26、 frequencies specified;1) 1 MPa = 1 N/mm 2 .Page 4 EN 39:2001 BSI 07-2001 the depth of marking of at least 0,2 mm is now a recommendation with an option to specify it as a requirement. The order of marking has changed slightly in order to preserve the separation of standard number and thickness type
27、. Annex A is informative.Page 5 EN 39:2001 BSI 07-2001 1 Scope This European Standard specifies the requirements for non-alloy steel tubes for use with EN 74 couplers in the construction of falsework and working scaffolds. It includes detailed requirements for marking to aid long-term identification
28、, for protective coating by reference to European and International Standards, and for inspection and testing. NOTE 1: Tubes to this European Standard, which have a specified outside diameter of 48,3 mm and specified thickness of 3,2 mm or 4,0 mm, may also be used in conjunction with other sizes and
29、 grades of steel tubes for applications such as prefabricated scaffolds. NOTE 2: The use of these tubes should be in accordance with appropriate International and national requirements, for example prEN 12811 and prEN 12812. 2 Normative references This European Standard incorporates by dated or unda
30、ted reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when
31、incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies (including amendments). EN 10002-1 Metallic materials Tensile testing Part 1: Method of test (at ambient temperature). EN 10020 Definition and classification of grades of ste
32、el. EN 10021 General technical delivery requirements for steel and iron products. EN 10027-1 Designation systems for steel Part 1: Steel names principal symbols. EN 10027-2 Designation systems for steel Part 2: Steel numbers. EN 10204 Metallic products Types of inspection documents (including amendm
33、ent A1:1995). EN 10233 Metallic materials Tube Flattening test. EN 10240 Internal and/or external protective coatings for steel tubes Specification for hot dip galvanized coatings applied in automatic plants. EN ISO 377 Steel and steel products Location and preparation of samples and test pieces for
34、 mechanical testing. EN ISO 1461 Hot dip galvanized coatings on fabricated iron and steel articles Specification and test methods. EN ISO 2409 Paints and varnishes Cross-cut test. EN ISO 2566-1 Steel Conversion of elongation values Part 1: Carbon and low alloy steels. prEN 10168 2) Iron and steel pr
35、oducts inspection documents contents List of information and description. prEN 10266 2) Steel tubes, fittings and structural hollow sections Definitions and symbols for use in product standards. ISO 4628-3 Paints and varnishes Evaluation of degradation of paint coatings Designation of intensity, qua
36、ntity and size of common types of defect Part 3: Designation of degrees of rusting. ISO 7253:1996 Paints and varnishes Determination of resistance to neutral salt spray. CR 10260 Designation system for steel Additional symbols.2 In preparation, until this document is published as a European Standard
37、 the corresponding national standard(s) should be agreed at the time of enquiry and order.Page 6 EN 39:2001 BSI 07-2001 3 Terms and definitions For the purposes of this European Standard the terms and definitions given in EN 10020 (definition and classification of steel), EN 10021 (inspection and te
38、sting), EN 10204 (inspection documents), prEN 10266 (seamless and welded tube) and the following, in addition to or instead of the definitions and symbols given in the above text, apply. 3.1 type 3 tube tube of 3,2 mm specified wall thickness 3.2 type 4 tube tube of 4,0 mm specified wall thickness 3
39、.3 bare tube tube whose surface is as manufactured without subsequent coating 4 Classification and designation 4.1 Classification In accordance with the classification system in EN 10020, the steel in Table 1 is classified as non-alloy quality steel. 4.2 Designation For the tubes covered by this Eur
40、opean Standard the steel designation consists of: the number of this European Standard (EN 39); plus either: the steel name in accordance with EN 10027-1 and CR 10260; or: the steel number allocated in accordance with EN 10027-2. 5 Information to be supplied by the purchaser 5.1 Mandatory informatio
41、n The following information shall be supplied by the purchaser at the time of enquiry and order: a) the quantity (mass or total length or number); b) the number of this European Standard (EN 39); c) the type (3 or 4) or specified wall thickness (mm); d) the standard length required (see 7.6.5); e) t
42、he options required (see 5.2).Page 7 EN 39:2001 BSI 07-2001 5.2 Options A number of options are specified in this European Standard and 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 tube shall be su
43、pplied in accordance with the basic specification (see 5.1). 1) The type of tube, seamless or welded, shall be as specified (see 6.2). 2) The silicon content of range 1 shall be limited (see 7.2). 3) Approximate or exact length is specified (see 7.6.5). 4) A tighter tolerance on length is specified
44、(see Table 2). 5) Specific inspection and testing is specified (see 8. 1). 6) An inspection document shall be supplied (see 8.2.1). 7) Depth of impression of marking to be at least 0,2 mm (see clause 12). 8) Tubes shall be supplied bare (see clause 13). 9) Temporary corrosion protection is specified
45、 (see clause 13). 10) Tubes shall be supplied painted, colour to be agreed (see clause 13). 5.3 Examples of ordering EXAMPLE 1 One thousand tubes in accordance with EN 39 with a specified wall thickness of 3,2 mm (type 3) in 6,0 metre standard lengths, supplied bare (option 8) and with temporary cor
46、rosion protection (option 9). 1 000 tubes EN 39 - 3,2 - 6,0 - Options 8 and 9. EXAMPLE 2 48 tonnes of tube in accordance with EN 39 type 4 (4,0 mm specified wall thickness), supplied in 6,4 metre standard lengths and with an inspection document 2.2 according to EN 10204 provided (option 6). 48 tonne
47、s tube EN 39 - 4 - 6,4 - Option 6 - 2.2. 6 Manufacturing process 6.1 Steelmaking process The steelmaking process is at the discretion of the manufacturer. The steel shall be killed. 6.2 Tube manufacture The tubes shall be made seamless or welded, at the discretion of the manufacturer unless option 1
48、 is specified. Option 1 tubes shall be supplied seamless or welded the type to be specified by the purchaser. Finished welded tubes shall not include welds used for joining together lengths of the hot or cold rolled strip prior to forming.Page 8 EN 39:2001 BSI 07-2001 7 Requirements 7.1 General When
49、 manufactured in accordance with clause 6 and inspected in accordance with clause 8, the tube shall conform to the requirements of this European Standard. In addition to the requirements of this European Standard, the general technical delivery requirements specified in EN 10021 shall apply. 7.2 Chemical composition and mechanical properties The tube shall meet the requirements for chemical composition and mechanical properties given in Table 1. The cast analysis repo
