1、BSI Standards PublicationBS EN 10149-2:2013Hot rolled flat products madeof high yield strength steels forcold formingPart 2: Technical delivery conditions forthermomechanically rolled steelsBS EN 10149-2:2013 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 10149
2、-2:2013.It supersedes BS EN 10149-2:1996 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee ISE/103, Structural Steels Other Than Reinforcements.A list of organizations represented on this committee can beobtained on request to its secretary.This publicati
3、on does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2013. Published by BSI StandardsLimited 2013ISBN 978 0 580 73972 9ICS 77.140.50Compliance with a British Standard cannot confer immunity froml
4、egal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 30 September 2013.Amendments issued since publicationDate Text affectedBS EN 10149-2:2013EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 10149-2 September 2013 ICS 77.140.50
5、 Supersedes EN 10149-2:1995English Version Hot rolled flat products made of high yield strength steels for cold forming - Part 2: Technical delivery conditions for thermomechanically rolled steels Produits plats lamins chaud en aciers haute limite dlasticit pour formage froid - Partie 2: Conditions
6、techniques de livraison des aciers obtenus par laminage thermomcanique Warmgewalzte Flacherzeugnisse aus Sthlen mit hoher Streckgrenze zum Kaltumformen - Teil 2: Technische Lieferbedingungen fr thermomechanisch gewalzte SthleThis European Standard was approved by CEN on 17 August 2013. CEN members a
7、re 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 concerning such national standards may be obtained on application to
8、 the CEN-CENELEC 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 language and notified to the CEN-CENELEC Management C
9、entre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithu
10、ania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-
11、1000 Brussels 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 10149-2:2013: EBS EN 10149-2:2013EN 10149-2:2013 (E) 2 Contents Page Foreword 3 1 Scope 4 2 Normative references 4 3 Terms and definitions .4 4 Information to be su
12、pplied by the purchaser .4 4.1 General 4 4.2 Options .5 5 Dimensions, mass and tolerances .5 5.1 Dimensions and tolerances 5 5.2 Mass of steel 5 6 Classification and designation .5 6.1 Classification 5 6.2 Designation 5 7 Technical requirements 5 7.1 Steel manufacturing process .5 7.2 Delivery condi
13、tion 5 7.3 Chemical composition 5 7.4 Mechanical properties .6 7.5 Technological properties 6 7.5.1 Weldability 6 7.5.2 Formability 6 7.6 Surface finish .7 7.7 Internal soundness 7 8 Inspection and testing .7 8.1 General 7 8.2 Sampling .7 8.3 Test units 7 8.4 Verification of chemical composition 7 8
14、.5 Preparation of samples and test pieces 8 8.6 Test methods 8 8.7 Retests and resubmission for testing .8 8.8 Inspection documents .8 9 Marking .8 10 Disputes 8 11 Options .8 Annex A (normative) Location of test pieces 11 Annex B (informative) Minimum inside bend radii for cold forming . 12 Bibliog
15、raphy . 13 BS EN 10149-2:2013EN 10149-2:2013 (E) 3 Foreword This document (EN 10149-2:2013) has been prepared by Technical Committee ECISS/TC 103 “Structural steel other than reinforcements”, the secretariat of which is held by DIN. This European Standard shall be given the status of a national stan
16、dard, either by publication of an identical text or by endorsement, at the latest by March 2014, and conflicting national standards shall be withdrawn at the latest by March 2014. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CE
17、N and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 10149-2:1995. In comparison with EN 10149-2:1995, the following significant technical changes were made: Scope was modified; subclause 6.1 was revised; subclause 7.4.1 was modifi
18、ed; subclause 7.5.3 was completely revised; Option 13) was added in Clause 11; steel grades S900MC and S960MC were added in Tables 1, 2 and B.1; footnotes f and g were added in Table 2. The titles of the other Parts of this European Standard are: Part 1: General technical delivery conditions; Part 3
19、: Technical delivery conditions for normalized or normalized rolled steels. According to the CEN-CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, D
20、enmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 10149
21、-2:2013EN 10149-2:2013 (E) 4 1 Scope This European Standard, in addition to EN 10149-1, specifies requirements for flat products made of weldable, hot-rolled, high yield strength steels for cold forming. The grades are given in Table 1 (chemical composition) and Table 2 (mechanical properties) and a
22、re supplied in the thermomechanically rolled delivery condition as given in 7.2. The steels specified in this European Standard are applicable to hot-rolled flat products in the thickness range of: 1,5 mm to 20 mm for the steels which have a specified minimum yield strength of 315 MPa1)up to and inc
23、luding 460 MPa1); 1,5 mm to 16 mm for the steels which have a specified minimum yield strength of 500 MPa1)up to and including 700 MPa1); and from 2 mm up to 10 mm for the steels with a minimum yield stress in the range from 900 MPa1)to 960 MPa1). 2 Normative references The following documents, in w
24、hole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 10029, Hot-rolled plates 3 mm thi
25、ck or above - Tolerances on dimensions and shape EN 10051, Continuously hot-rolled strip and plate/sheet cut from wide strip of non-alloy and alloy steels - Tolerances on dimensions and shape EN 10149-1:2013, Hot rolled flat products made of high yield strength steels for cold forming - Part 1: Gene
26、ral technical delivery conditions EN ISO 14713-2:2009, Zinc coatings - Guidelines and recommendations for the protection against corrosion of iron and steel in structures - Part 2: Hot dip galvanizing (ISO 14713-2:2009) 3 Terms and definitions For the purposes of this document, the terms and definit
27、ions given in EN 10149-1:2013 apply. 4 Information to be supplied by the purchaser 4.1 General The information to be supplied by the purchaser shall be in accordance with EN 10149-1. 1) 1 MPa = 1 N/mm2. BS EN 10149-2:2013EN 10149-2:2013 (E) 5 4.2 Options The options given in EN 10149-1 and Clause 11
28、 shall apply. 5 Dimensions, mass and tolerances 5.1 Dimensions and tolerances The dimensions and tolerances shall be in accordance with EN 10149-1. For hot rolled plate tolerances, the basic requirements shall be in accordance with EN 10029, including thickness tolerances to class A, unless otherwis
29、e agreed at the time of the order. For plates cut from continuously hot rolled strip, the thickness tolerances shall be in accordance with EN 10051. 5.2 Mass of steel The calculated mass of steel shall be determined in accordance with EN 10149-1. 6 Classification and designation 6.1 Classification T
30、he steel grades S315MC, S355MC, S420MC, S460MC, S500MC and S550MC of this European Standard are alloy quality steels and the steel grades S600MC, S650MC, S700MC, S900MC and S960MC of this European Standard are alloy special steels according to EN 10020. 6.2 Designation The designation shall comply w
31、ith EN 10149-1. 7 Technical requirements 7.1 Steel manufacturing process The steel manufacturing process shall be in accordance with EN 10149-1. See EN 10149-1:2013, Clause 11, option 1). 7.2 Delivery condition The products shall be supplied in the thermomechanically rolled delivery condition. The s
32、urface protection of descaled products shall be in accordance with EN 10149-1. See EN 10149-1:2013, Clause 11, option 2). 7.3 Chemical composition The requirements of EN 10149-1 shall apply. BS EN 10149-2:2013EN 10149-2:2013 (E) 6 The chemical composition determined by ladle analysis shall comply wi
33、th the specified values of Table 1. See EN 10149-1:2013, Clause 11, option 3). 7.4 Mechanical properties 7.4.1 General Under the inspection and testing conditions as specified in Clause 8 and in the delivery condition as specified in 7.2, the mechanical properties shall comply with the values given
34、in Table 2. Heating of grades S900MC and S960MC above 400C is not recommended. If the purchaser intends to heat grades S900MC and S960MC at temperatures above 400C, the mechanical properties after such heating should be agreed at the time of order. See EN 10149-1:2013, Clause 11, option 13). 7.4.2 I
35、mpact energy If agreed at the time of the order, the verification of the impact energy value shall be carried out in accordance with EN 10149-1. See EN 10149-1:2013, Clause 11, option 5). 7.5 Technological properties 7.5.1 Weldability Weldability shall be in accordance with EN 10149-1. 7.5.2 Formabi
36、lity 7.5.2.1 General NOTE Recommendations regarding cold forming are laid down in CEN/TR 10347. The products supplied according to this standard are not suitable for hot forming. 7.5.2.2 Cold forming 7.5.2.2.1 General Annex B contains indicative values for the inside bend radii for cold forming. 7.5
37、.2.2.2 Flangeability The products are suitable for flanging without cracking. 7.5.2.2.3 Roll forming The suitability for roll forming shall be in accordance with EN 10149-1. See EN 10149-1:2013, Clause 11, option 6). BS EN 10149-2:2013EN 10149-2:2013 (E) 7 7.5.3 Hot-dip zinc-coating For grades S315M
38、C to S700MC, requirements for chemical composition of steels to be hot-dip zinc coated shall be separately agreed between manufacturer and purchaser. EN ISO 1461 should be used to specify coating requirements. EN ISO 14713-2 provides further guidance, including information on the influence of variou
39、s factors, including steel chemical composition, on the coating formation. Option 7) (see EN 10149-1:2013, Clause 11) can be used to order steels with a chemical composition required for hot-dip zinc coating. When option 7) is implemented, the purchaser and manufacturer shall agree with a steel comp
40、osition (ladle analysis) of silicon and phosphorous according to either Category A (or steels satisfying the formula Si 0,03 % and Si+2.5P 0,09 %) or Category B (limited to 0,14 % 8 mm the minimum yield strength can be 20 MPae lower. e1MPa = 1N/mm2. fBending at 90 o, for thicknesses less than 3 mm m
41、inimum mandrel diameter 7t. gBending at 90 o, for thicknesses less than 3 mm minimum mandrel diameter 8t. BS EN 10149-2:2013EN 10149-2:2013 (E) 11 Annex A (normative) Location of test pieces This annex gives the location of test pieces. Table A.1 Location of test pieces Dimensions in millimetres Typ
42、e of test Thickness of product Orientation of the test pieces for widths of Distance of the test piece from the rolled surface 12 longitudinal longitudinal aRolled surface. BS EN 10149-2:2013EN 10149-2:2013 (E) 12 Annex B (informative) Minimum inside bend radii for cold forming Table B.1 Minimum ins
43、ide bend radii for cold forming Designation of steel grade Minimum recommended inside bend radii for nominal thicknesses (t) in mm aSteel name Steel number t 3 3 6 S315MC S355MC S420MC S460MC S500MC S550MC S600MC S650MC S700MC S900MC S960MC 1.0972 1.0976 1.0980 1.0982 1.0984 1.0986 1.8969 1.8976 1.8
44、974 1.8798 1.8799 0,25t 0,25t 0,5t 0,5t 1,0t 1,0t 1,0t 1,5t 1,5t 3,5t 4,0t 0,5t 0,5t 1,0t 1,0t 1,5t 1,5t 1,5t 2,0t 2,0t 4,0t 4,5t 1,0t 1,0t 1,5t 1,5t 2,0t 2,0t 2,0t 2,5t 2,5t 4,5t 5,0t aThe values are applicable for bend angles 90. BS EN 10149-2:2013EN 10149-2:2013 (E) 13 Bibliography 1 CEN/TR 10347
45、, Guidance for forming of structural steels in processing 2 EN 10020, Definition and classification of grades of steel 3 EN ISO 1461, Hot dip galvanized coatings on fabricated iron and steel articles Specifications and test methods (ISO 1461) This page deliberately left blankThis page deliberately l
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