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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 LAW BS EN 39:2001 This British
2、Standard, 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 E
3、nglish 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 It supersedes BS 1139-1.1:1990 which is withdrawn.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 prepa
4、ration 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-r
5、eferences 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 C
6、atalogue. 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 ins
8、ide 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. DateComments EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 39 A
9、pril 2001 ICS 77.140.75; 91.220Supersedes 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 CENAll rights of exploitation in any form and by
14、any means reserved worldwide for CEN national Members. Ref. No. EN 39:2001 E Page 2 EN 39:2001 BSI 07-2001 Contents Foreword3 1Scope 5 2Normative references 5 3Terms and definitions6 4Classification and designation.6 4.1Classification6 4.2Designation6 5Information to be supplied by the purchaser6 5.
15、1Mandatory information .6 5.2Options.7 5.3Examples of ordering.7 6Manufacturing process .7 6.1Steelmaking process7 6.2Tube manufacture7 7Requirements.8 7.1General 8 7.2Chemical composition and mechanical properties 8 7.3Appearance8 7.4Straightness.8 7.5External weld bead and preparation of ends.9 7.
16、6Dimensions, mass and tolerances.9 8Inspection.10 8.1Type of inspection10 8.2Inspection documents10 8.3Summary of inspection and testing11 9Sampling.12 9.1Frequency of tests12 9.2Preparation of samples and test pieces.12 10Test methods13 10.1Tensile test.13 10.2Flattening test.13 10.3Visual examinat
17、ion.13 10.4Dimensional inspection13 11Retests, sorting and reprocessing.13 12Marking .14 13Coating14 Annex A (informative) Values for design of structures.15 Bibliography16 Page 3 EN 39:2001 BSI 07-2001 Foreword This European Standard has been prepared by Technical Committee ECISS/TC 29, Steel tubes
18、 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 by publication of an identical text or by en
19、dorsement, 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 implement this European Standard: Austria, Be
20、lgium, 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 Harmonization Document HD 1039, Steel tubes for falsework
21、 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 an option for them to be supplied without a
22、 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 Standards and are not included in the
23、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 tolerance for single tubes has been c
24、hanged 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 those length types, are now spec
25、ified; ? 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 frequencies specified
26、; 1) 1 MPa = 1 N/mm2. 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. Annex A is informa
27、tive. 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, for protective co
28、ating 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 grades of steel tu
29、bes 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 undated reference, prov
30、isions 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 incorporated in it
31、by amendment or revision. For undated references the latest edition of the publication referred to applies (including amendments). EN 10002-1Metallic materials Tensile testing Part 1: Method of test (at ambient temperature). EN 10020Definition and classification of grades of steel. EN 10021General t
32、echnical delivery requirements for steel and iron products. EN 10027-1Designation systems for steel Part 1: Steel names principal symbols. EN 10027-2Designation systems for steel Part 2: Steel numbers. EN 10204Metallic products Types of inspection documents (including amendment A1:1995). EN 10233Met
33、allic materials Tube Flattening test. EN 10240Internal and/or external protective coatings for steel tubes Specification for hot dip galvanized coatings applied in automatic plants. EN ISO 377Steel and steel products Location and preparation of samples and test pieces for mechanical testing. EN ISO
34、1461Hot dip galvanized coatings on fabricated iron and steel articles Specification and test methods. EN ISO 2409Paints and varnishes Cross-cut test. EN ISO 2566-1Steel Conversion of elongation values Part 1: Carbon and low alloy steels. prEN 101682)Iron and steel products inspection documents conte
35、nts List of information and description. prEN 102662)Steel tubes, fittings and structural hollow sections Definitions and symbols for use in product standards. ISO 4628-3Paints and varnishes Evaluation of degradation of paint coatings Designation of intensity, quantity and size of common types of de
36、fect Part 3: Designation of degrees of rusting. ISO 7253:1996Paints and varnishes Determination of resistance to neutral salt spray. CR 10260Designation system for steel Additional symbols. 2? In preparation, until this document is published as a European Standard the corresponding national standard
37、(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 testing), EN 10204 (inspection docume
38、nts), 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 3.3 bare tube tube whose surface is
39、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 European Standard the steel designatio
40、n 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 information The following information s
41、hall 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) the options required (see 5.2)
42、. 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 supplied in accordance with th
43、e 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 (see Table 2). 5) Specific i
44、nspection 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 (see clause 13). 10) Tubes
45、shall be supplied painted, colour to be agreed (see clause 13). 5.3 Examples of ordering EXAMPLE 1One 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 corrosion protection (option 9).
46、 1 000 tubes EN 39 - 3,2 - 6,0 - Options 8 and 9. EXAMPLE 248 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 tonnes tube EN 39 - 4 - 6,4 - Optio
47、n 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 is specified. Option 1tubes s
48、hall 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 manufactured in accordance wi
49、th 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 reported by the steel producer shall apply. The silicon content shall b