One or more corrigenda exist with corrections to this document. December 2012 DIN DIN 743-3 ICS 21.120.10 Supersedes DIN 743-3:2000-10 Calculation of load capacity of shafts and axles Part 3: Strength of materials, English translation of DIN 743-3:2012-12 Tragfahigkeitsberechnung von Wellen und Achsen - Teil 3: Werkstoff-Festigkeitswerte Englische Ubersetzung von DIN 743-3:2012-12 Calcul de la capacité des arbres et axes Partie 3: Résistance des matériaux, Traduction anglaise de DIN 743-3:2012-12 Document comprises 8 pages Translation by DIN-Sprachendienst. In case of doubt, the German-language original shall be considered authoritative. No part of this translation may be reproduced without prior permission of English price group 6 DiN Deutsches Institut fur Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany, www.din.de has the exclusive right of sale for German Standards (DIN-Normen). www.beuth.de 09.15 2283244 DIN 743-3:2012-12 A comma is used as the decimal marker. Contents Page Foreword. 1 Scope 2 Normative references 3 Symbols, designations and units.. 4 Material strength values. 4.1 Fatigue strength. 4.2 Yield point..... Annex A (normative) Ultimate strength values, Annex B (informative) List of former designations of structural steel for comparison Tables Table A.1 - Uitimate strength values for non-alloy structural steels according to DIN EN 10025-2 .... 6 Table A.2 - Strength for weldable fine grain structural steels according to DIN EN 10025-3.. Table A.3 - Ultimate core strength values for case hardening steels (corresponding to blank- hardened condition) according to DIN EN 10084.... Table A.4 - Ultimate strength values for quenched and tempered steels according to DIN EN 10083-2 and DIN EN 10083-3.. Table A.5 - Ultimate strength values for nitriding steels according to DIN 17211.. Table B.1 Designations of structural steels , 2 DIN 743-3:2012-12 Foreword This standard has been prepared by Working Committee NA 060-34-32 AA Wellen- und Well-Nabe- Verbindungen of Section Antriebstechnik of the Normenausschuss Maschinenbau (Mechanical Engineering Standards Committee) in DIN. DIN 743, Calculation of load capacity of shafts and axles comprises: Part 1: General 一 Part 2: Theoretical stress concentration factors and fatigue notch factors Part 3: Strength of materials 一 一 Supplement 1: Examples to part 1 to 3 Supplement 2: Examples to part 4 Amendments This standard differs from DIN 743-3:2000-10 as follows: a) material designations have been updated. Previous editions DIN 743-3: 1998-05, 2000-10 3 DIN 743-3:2012-12 1 Scope This standard deals with proving the strength of shafts and axles. It determines the material parameters required for proving the strength according to DIN 743-1. Users can make use of their own experience or data. dependent ultimate strength values are required to be taken into account. The ultimate strength values are valid for the frequency range up to 100 Hz. The fatigue strength values are valid for the ultimate number of load cycles Ne = 10' No difference is made between rotational bending and flat bending. The fatigue strength values have been given for the more unfavourable rotational bending. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated document (including any amendments) applies. DIN 743-1, Calculation of load capacity of shafts and axles Part 1: General DIN 743-2, Calculation of load capacity of shafts and axles - Part 2: Theoretical stress concentration factors andfatiguenotchfactors DIN 17211, Nitriding steels - Technical delivery conditions DiN EN 10025-2, Hot rolled products of structural steels Part 2: Technical delivery conditions for non-alloy structural steels DIN EN 10025-3, Hot rolled products of structural steels — Part 3: Technical delivery conditions for normalized/normalized rolled weldable fine grain structural steels DIN EN 10083-2, Steels for quenching and tempering - Part 2: Te