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BRITISH STANDARDBS EN 1515-3:2005Incorporating Corrigendum No. 1Flanges and their joints Bolting Part 3: Classification of bolt materials for steel flanges, class designatedThe European Standard EN 1515-3:2005 has the status of a British StandardICS 21.060.10; 23.040.60?Licensed Copy: Institute Of Technology Tallaght, Institute of Technology, Mon Apr 02 10:16:02 GMT+00:00 2007, Uncontrolled Copy, (c) BSIBS EN 1515-3:2005This British Standard was published under the authority of the Standards Policy and Strategy Committee on 14 November 2005 BSI 2006ISBN 0 580 46786 4National forewordThis British Standard is the official English language version of EN 1515-3:2005. The UK participation in its preparation was entrusted to Technical Committee PSE/15, Flanges, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary.Cross-referencesThe British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard does not of itself confer immunity from legal obligations.aid enquirers to understand the text;present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep UK interests informed;monitor related international and European developments and promulgate them in the UK.Summary of pagesThis document comprises a front cover, an inside front cover, the EN title page, pages 2 to 7 and a back cover.The BSI copyright date displayed in this document indicates when the document was last issued.Amendments issued since publicationAmd. No. DateComments1653531 August 2006 Deletion of supersession detailsLicensed Copy: Institute Of Technology Tallaght, Institute of Technology, Mon Apr 02 10:16:02 GMT+00:00 2007, Uncontrolled Copy, (c) BSIEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 1515-3September 2005ICS 21.060.10; 23.040.60 English VersionFlanges and their joints - Bolting - Part 3: Classification of boltmaterials for steel flanges, class designatedBrides et leur assemblages - Boulonnerie - Partie 3:Classification de matriaux de boulonnerie pour brides enacier, dsignes ClassFlansche und ihre Verbindungen - Schrauben und Muttern -Teil 3: Klassifizierung von Schraubenwerkstoffen frStahlflansches, nach Class bezeichnetThis European Standard was approved by CEN on 8 August 2005.CEN members are bound to comply with the CEN/CENELEC Internal Regulations 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 Central Secretariat or to any CEN member.This European 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 Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2005 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 1515-3:2005: ELicensed Copy: Institute Of Technology Tallaght, Institute of Technology, Mon Apr 02 10:16:02 GMT+00:00 2007, Uncontrolled Copy, (c) BSIEN 1515-3:2005 (E) 2 Contents Page Foreword .3 1 Scope.4 2 Normative references .4 3 Classification of bolt materials .4 Annex A (informative) Basic information.6 Bibliography.7 Licensed Copy: Institute Of Technology Tallaght, Institute of Technology, Mon Apr 02 10:16:02 GMT+00:00 2007, Uncontrolled Copy, (c) BSIw w w . b z f x w . c o mEN 1515-3:2005 (E) 3 Foreword This European Standard (EN 1515-3:2005) has been prepared by Technical Committee CEN/TC 74 “Flanges and their joints”, the secretariat of which is held by DIN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by March 2006, and conflicting national standards shall be withdrawn at the latest by March 2006. EN 1515 Flanges and their joints Bolting consists of three Parts: Part 1: Selection of bolting; Part 2: Classification of bolt materials for steel flanges, PN designated; Part 3: Classification of bolt materials for steel flanges, Class designated. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Den-mark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxem-bourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Licensed Copy: Institute Of Technology Tallaght, Institute of Technology, Mon Apr 02 10:16:02 GMT+00:00 2007, Uncontrolled Copy, (c) BSIw w w . b z f x w . c o mEN 1515-3:2005 (E) 4 1 Scope This European Standard covers the classification of bolt materials used in combination with steel flanges ac-cording to EN 1759-1 (Class designated). Bolt materials are listed in EN 1515-1; flange material groups are listed in EN 1759-1. 2 Normative references The following referenced documents are indispensable for the application of this European Standard. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 1759-1:2004, Flanges and their joint Circular flanges for pipes, valves, fittings and accessories, Class designated Part 1: Steel flanges NPS 1/2 to 24. EN 1515-1, Flanges and their joints Bolting Part 1: Selection of bolting. EN 10269, Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties. EN ISO 898-1, Mechanical properties of fasteners made of carbon steel and alloy steel Part 1: Bolts, screws and studs (ISO 898-1:1999). EN ISO 3506-1, Mechanical properties of corrosion-resistant stainless steel fasteners Part 1: Bolts, screws and studs (ISO 3506-1:1997). 3 Classification of bolt materials The classification of bolt materials as given in Table 1 is based on the rules given in ASME B16.5 (see also annex A). All bolting materials are subject to the following limitations: a) High strength bolting (allowable stress 170 N/mm2 and above; see Table A.1) may be used in any flanged joint. During assembly however, care should be taken not to over-stress the flanges (e. g. by means of torque control). b) Intermediate strength bolting may be used in any flanged joint, provided the ability according to EN 1759-1:2004, 5.3.1 is verified. c) Low strength bolting (allowable stress 140 N/mm2 and below; see Table A.1) is restricted to CL 150 and CL 300. The ability according to EN 1759-1:2004, 5.3.1 shall be verified, with special consideration of the gasket. Licensed Copy: Institute Of Technology Tallaght, Institute of Technology, Mon Apr 02 10:16:02 GMT+00:00 2007, Uncontrolled Copy, (c) BSIw w w . b z f x w . c o mEN 1515-3:2005 (E) 5 Table 1 Classification of bolting Bolting according to EN 1515-1 Line Material / strength class Standard Diametermm Classification 01 4.6 EN ISO 898-1 all Low strength 02 5.6 EN ISO 898-1 all Intermediate strength 04 8.8 EN ISO 898-1 all High strength 05, 07 25CrMo4 EN 10269 all High strength 06, 08 42CrMo4 EN 10269 all High strength 09 30CrNiMo8 EN 10269 all High strength 10 42CrMo5-6 EN 10269 all High strength 11 40CrMoV4-6 EN 10269 all High strength 12 21CrMoV5-7 EN 10269 all High strength 13 20CrMoVTiB4-10 EN 10269 all High strength 14 X6NiCrTiMoVB 25-15-2 EN 10269 all Intermediate strength 15 X7CrNiMoBNb16-16 EN 10269 all High strength 16, 18 A4-50,A2-50 EN ISO 3506-1 39 Low strength 17, 19 A4-70, A2-70 EN ISO 3506-1 24 High strength 20 X5CrNiMo17-12-2 AT EN 10269 all Low strength 21 X5CrNiMo17-12-2 AT+C EN 10269 all Intermediate strength 22 X5CrNi18-10 EN 10269 all Low strength 23 X5CrNi18-10 AT+C EN 10269 all Intermediate strength Licensed Copy: Institute Of Technology Tallaght, Institute of Technology, Mon Apr 02 10:16:02 GMT+00:00 2007, Uncontrolled Copy, (c) BSIw w w . b z f x w . c o mEN 1515-3:2005 (E) 6 Annex A (informative) Basic information The classification has been developed with the following rules: a) Classification according to ASME B16.5:1996, 5.3 and table 1B. b) Allowable stresses for EN-materials are min of 1/3 Rm and 2/3 Reh at room temperature. c) High strength is classified with an allowable stress of 170 N/mm2 and higher, low strength with 140 N/mm2 and lower. If an EN-material has an equivalent ASTM material according to EN 1515-1, the classification according to B16.5 shall govern (see line 14, 21 and 23). Table A.1 Development of bolting classification Rm Reh Allowablestress Material / strength classASTM Allowable stress EN 1515-1 Material / strength class EN N/mm2 N/mm2 N/mm2 ksi N/mm2 Classification 01 4.6 400 240 133 A307 Gr.B 7 48 low 02 5.6 500 300 167 - intermediate 04 8.8 800 640 267 A354 Gr.BC 25 172 high 05, 07 25CrMo4 600 440 200 - high 06, 08 42CrMo4 860 730 287 B7 25 172 high 09 30CrNiMo8 1 040 940 347 L43 25 172 high 10 42CrMo5-6 860 700 287 - high 11 40CrMoV4-6 850 700 283 B16 25 172 high 12 21CrMoV5-7 700 550 233 - high 13 20CrMoVTiB4-10 820 660 273 - high 14 X6NiCrTiMoVB 25-15-2 900 600 300 A453 Gr.660 21 147 intermediate 15 X7CrNiMoBNb16-16 650 500 217 - high 16, 18 A4-50,A2-50 500 210 140 - low 17, 19 A4-70, A2-70 700 450 233 - high 20 X5CrNiMo17-12-2 500 200 133 B8M 19 130 low 21 X5CrNiMo17-12-2 AT+C 700 350 233 B8M Cl.2 20 138 intermediate 22 X5CrNi18-10 500 190 127 B8 19 130 low 23 X5CrNi18-10 AT+C 700 350 233 B8 CL.2 20 138 intermediate Licensed Copy: Institute Of Technology Tallaght, Institute of Technology, Mon Apr 02 10:16:02 GMT+00:00 2007, Uncontrolled Copy, (c) BSIw w w . b z f x w . c o mEN 1515-3:2005 (E) 7 Bibliography 1 ASME B16.5:1996, (with addenda 1998), Pipe flanges and flanged fittings. 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