1、BS EN 10238:2009ICS 77.140.10NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDAutomaticallyblast-cleaned andautomaticallyprefabrication primedstructural steelproductsThis British Standardwas published under theauthority of the StandardsPolicy and StrategyCommitte
2、e on 31 August2009 BSI 2009ISBN 978 0 580 64624 9Amendments/corrigenda issued since publicationDate CommentsBS EN 10238:2009National forewordThis British Standard is the UK implementation of EN 10238:2009. Itsupersedes BS EN 10238:1997 which is withdrawn.The UK participation in its preparation was e
3、ntrusted to TechnicalCommittee ISE/12, Structural steels.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisionsof a contract. Users are responsible for its correct application.Complian
4、ce with a British Standard cannot confer immunityfrom legal obligations.BS EN 10238:2009EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 10238July 2009ICS 77.140.10 Supersedes EN 10238:1996 English VersionAutomatically blast-cleaned and automatically prefabricationprimed structural steel productslm
5、ents mtalliques prfabriqus automatiquement etdcaps automatiquement par projection dabrasifAutomatisch gestrahlte und automatischfertigungsbeschichtete Erzeugnisse aus BausthlenThis European Standard was approved by CEN on 12 June 2009.CEN members are bound to comply with the CEN/CENELEC Internal Reg
6、ulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management Centre or to any CEN member.This E
7、uropean Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the na
8、tional standards 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
9、United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: Avenue Marnix 17, B-1000 Brussels 2009 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 10238:2009: EB
10、S EN 10238:2009EN 10238:2009 (E) 2 Contents Page Foreword 3 1 Scope 4 2 Normative references 4 3 Definitions 4 4 Information to be supplied by the purchaser .5 4.1 Mandatory information 5 4.2 Additional optional information .5 5 Designation 5 6 Manufacture 6 7 Preparation grade 6 8 Surface roughness
11、 7 9 Prefabrication primers 7 9.1 Types of prefabrication primers .7 9.2 Measurement of primer thickness .7 10 Flame cutting and weldability .8 11 Handling and storage 8 11.1 Handling 8 11.2 Storage 8 12 Inspection and testing .8 13 Marking .9 Annex A (normative) Positions of test pieces for measuri
12、ng the primer thickness . 10 Annex B (normative) Flame cutting - Welding 11 BS EN 10238:2009EN 10238:2009 (E) 3 Foreword This document (EN 10238:2009) has been prepared by Technical Committee ECISS/TC 10 “Structural steels - Qualities”, the secretariat of which is held by DIN. This European Standard
13、 shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by January 2010, and conflicting national standards shall be withdrawn at the latest by January 2010. Attention is drawn to the possibility that some of the elements of this
14、 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 supersedes EN 10238:1996. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries ar
15、e bound to implement this European Standard: 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, Swed
16、en, Switzerland and the United Kingdom. BS EN 10238:2009EN 10238:2009 (E) 4 1 Scope This European Standard specifies requirements for automatically blast-cleaned and automatically prefabrication primed structural steel products. This European Standard does not cover manual blast cleaning and/or manu
17、al spray painting. NOTE Where the steel is less than 5 mm thick, care should be exercised to ensure it is not deformed by blast cleaning. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited app
18、lies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 10021, General technical delivery conditions for steel products EN 10025-2, Hot rolled products of structural steels - Part 2: Technical delivery conditions for non-alloy structural ste
19、els EN 10025-3, Hot rolled products of structural steels - Part 3: Technical delivery conditions for normalized/normalized rolled weldable fine grain structural steels EN 10204, Metallic products Types of inspection documents EN ISO 2808:2007, Paints and varnishes Determination of film thickness (IS
20、O 2808:2007) EN ISO 8501-1, Preparation of steel substrates before application of paints and related products Visual assessment of surface cleanliness Part 1: Rust grades and preparation grades of uncoated steel substrates and of steel substrates after overall removal of previous coatings (ISO 8501-
21、1:2007) EN ISO 8503-2, Preparation of steel substrates before application of paints and related products Surface roughness characteristics of blast-cleaned steel substrates Part 2: Method for the grading of surface profile of abrasive blast-cleaned steel Comparator procedure (ISO 8503-2:1998) EN ISO
22、 17652-1:2003, Welding Test for shop primers in relation to welding and allied processes Part 1: General requirements (ISO 17652-1:2003) EN ISO 17652-2:2003, Welding Test for shop primers in relation to welding and allied processes Part 2: Welding properties of shop primers (ISO 17652-2:2003) EN ISO
23、 17652-3:2003, Welding Test for shop primers in relation to welding and allied processes Part 3: Thermal cutting (ISO 17652-3:2003) EN ISO 17652-4:2003, Welding Test for shop primers in relation to welding and allied processes Part 4: Emission of fumes and gases (ISO 17652-4:2003) 3 Definitions For
24、the purposes of this document, the following definitions apply: BS EN 10238:2009EN 10238:2009 (E) 5 3.1 automatic blast cleaning use of mechanical plant where the product being blast-cleaned is passed through a machine where turbines are used to project the abrasive onto the steel in a uniform manne
25、r 3.2 automatic priming After automatic blast cleaning, the product is primed by passing through a paint booth where reciprocating paint guns apply a continuous coating to the required thickness. 3.3 prefabrication primer thin coating which is automatically applied to blast cleaned steel and serves
26、to provide temporary corrosion protection for steel components during their processing, transport and storage 4 Information to be supplied by the purchaser 4.1 Mandatory information The following information shall be supplied by the purchaser at the time of enquiry and order: a) designation of the s
27、teel; b) type of prefabrication primer (see 9.1 table 1); c) type of inspection document (clause 12). 4.2 Additional optional information a) Preparation grade if different from Sa 2 (clause 7); b) surface roughness if specified (clause 8); c) dry film thickness if different from that given in 9.1; d
28、) information on manufacturing process (clause 6); e) flame cutting and weldability characteristics of prefabrication primers (clause 10); f) special requirements for marking (clause 13); g) position of test pieces (annex A). In the event that the purchaser does not indicate his wish to implement an
29、y of the additional information, the manufacturer shall supply the blast-cleaned and primed product in accordance with the basic specification. 5 Designation The products covered by this European Standard shall be designated as follows, in the order given: a) type of product (plate, beam ); b) numbe
30、r of this European Standard (EN 10238); c) preparation grade (see clause 7); BS EN 10238:2009EN 10238:2009 (E) 6 d) if the surface roughness is specified at time of enquiry and order, the surface roughness agreed; e) type of prefabrication primer (see 9.1); f) nominal prefabrication dry film thickne
31、ss if it differs from that specified in this Standard (see 9.1); g) designation of steel following the appropriate Standard. EXAMPLE 1 Designation of H heavy section made of steel S275N (or 1.0490) in accordance with EN 10025-3, with preparation grade Sa 2 coated with epoxy-zinc (EPZ). H heavy secti
32、on EN 10238-Sa 2 EPZ EN 10025-3 S275N; or H heavy section EN 10238-Sa 2 EPZ EN 10025-3 1.0490. EXAMPLE 2 Designation of a nominal dry film thickness different from that specified in this standard and agreed at the time of the enquiry and order and with a roughness also agreed at the time of order. S
33、heet made of steel S275JR (or 1.0044) in accordance with EN 10025-2 with preparation grade Sa 2 with roughness F, coated on both sides with polyvinyl butyral-iron oxide (PVBF), with nominal thickness 15 m. Sheet EN 10238-Sa 2 -F-PVBF15 EN 10025-2 S275JR; or Sheet EN 10238-Sa 2 -F-PVBF15 EN 10025-2 1
34、.0044. 6 Manufacture The surface treatment process and application of prefabrication primer shall be at the manufacturers discretion. If specified at the time of the enquiry and order, this shall be provided to the purchaser. At the end of production line, repairs to any damaged areas of the primer
35、shall be undertaken to ensure they meet the requirements of this European Standard. 7 Preparation grade Unless otherwise agreed at the time of enquiry and order, the preparation grade, as specified in accordance with EN ISO 8501-1, shall be Sa 2 minimum. Appearance variations resulting from: a) the
36、steel grade; b) surface condition of the steel, c) thickness of the steel, d) consequences of the heat treatment, e) marks from the fabrication of the steel BS EN 10238:2009EN 10238:2009 (E) 7 shall be deemed acceptable provided they do not affect the preparation grade. 8 Surface roughness At the ti
37、me of enquiry and order, a surface roughness class may be specified, in which case it shall be given in the product designation using the symbols F for fine, M for medium and C for coarse. The measurement method to be used shall be in accordance with EN ISO 8503-2. 9 Prefabrication primers 9.1 Types
38、 of prefabrication primers Table 1 lists the most commonly used groups of primers. The most usual nominal thickness specified is 20 m 5 m. In case of sections, greater dry film thickness in single regions is permitted. Table 1 Prefabrication primers Basic Characteristics Symbol Binder Pigmentation E
39、poxy (EP) Iron oxide (F) EPF Polyvinyl butyral (PVC) Iron oxide (F) PVBF Alkyd (AK) Iron oxide (F) AKF Acrylic (AY) Iron oxide (F) AYF Epoxy (EP) Zinc dust (Z) EPZ Ethyl Silicate (ESI) Zinc dust (Z) ESIZ Other nominal dry film thickness ranges and/or other types of prefabrication primer shall be app
40、lied if agreed at the time of enquiry and order. 9.2 Measurement of primer thickness The thickness of the dry film shall be measured according to EN ISO 2808:2007 method 3 (dial gauge method). The test piece for measuring the dry film thickness shall be perfectly smooth. Glass plates or thin steel s
41、heets are the most commonly used type of test pieces. The test pieces shall be attached to the products at the end of the blast cleaning process and shall be primed at the same time as the product. Annex A (normative) specifies the position(s) of test pieces for measuring the primer thickness for di
42、fferent products. Following the removal of the thickness test pieces, the unpainted area shall be primed with the same primer as used for the initial coating. BS EN 10238:2009EN 10238:2009 (E) 8 The test pieces for the thickness control of the dry primer film shall be stored by the manufacturer for
43、at least one year. 10 Flame cutting and weldability If required at the time of enquiry and order, the flame cutting and weldability characteristics of prefabrication primers shall be measured according to one of the procedures specified in Annex B. It is the responsibility of the purchaser to obtain
44、, from the manufacturer, the results of these tests. 11 Handling and storage 11.1 Handling The following precautions shall be taken when handling primed products: a) avoid excessive rubbing of lifting appliances against the products; b) avoid friction of products against each other; c) avoid impact
45、to the products; d) avoid dragging products over any surfaces. 11.2 Storage It is recommended that blast-cleaned and primed products be stored indoors as it allows optimum conservation. The following elementary precautions shall be taken by the manufacturer when storing the products: a) isolate prod
46、ucts from ground moisture by appropriate means (e.g. gravel and beams etc.); b) store the products on a slightly inclined slope to avoid water stagnation; c) keep primed and untreated products separate; d) prevent personnel from walking on the treated products. NOTE The purchaser should take the sam
47、e precautions as the manufacturer. 12 Inspection and testing The products can be supplied with inspection and testing with respect to their compliance with the requirements of this European Standard. If inspection is required, the purchaser shall specify at the time of enquiry and order: a) the type
48、 of inspection and testing (specific or non specific) see EN 10021); b) the type of inspection document (see EN 10204). BS EN 10238:2009EN 10238:2009 (E) 9 13 Marking In addition to the initial marking of the steel, each product or bundle shall be identified by a label or marked by an easily removed
49、 non-corrosive ink with at least the following information: a) name or mark of the manufacturer of the blast cleaned and primed products; b) symbol or workshop primer and its thickness; c) date of manufacture. BS EN 10238:2009EN 10238:2009 (E) 10 Annex A (normative) Positions of test pieces for measuring the primer thickness1)I sections H sections Channels Angles A) B) Hollow sections Tees Flats, plates and sheets 1) Other positions of the test pieces can be agreed at the time of enquiry and orde
