ISO INTERNATIONAL STANDARD 683-5 Second edition 2017-07 Heat treatable steels, alloy steels and free-cutting steels - Part 5: Nitriding steels Aciers pour traitement thermique, aciers alliés et aciers pour décolletage - Partie 5: Aciers pour nitruration Reference number ISO 683-5:2017(E) [so @ IS0 2017 IS0 683-5:2017(E) Contents Page Foreword 1 Scope 2 Normative references 3 Terms and definitions. .2 4 Classification and designation 3 4.1 Classification 4.2 Designation. 3 5 Information to be supplied by the purchaser. 3 5.1 Mandatory information .. 5,2 Options/supplementary or special requirements 5.3 Ordering example .. 6 Manufacturing process 6.1 General 6.2 Deoxidization 6.3 Heat treatment and surface condition at delivery. 6.3.1 Normal condition at delivery 6.3.2 Particular heat-treatment condition 6.3.3 Particular surface conditions. 6.4 Traceability of the cast. 7 Requirements 7.1 Chemical composition, hardness and mechanical properties. 7.1.1 General. 7.1.2 Chemical composition 7.1.3 Mechanical properties . 5 7.2 Machinability 5 7.3 Cold shearability. 7.4 Grain size 7.5 Non-metallic inclusions 7.5.1 Microscopic inclusions 7.5.2 Macroscopic inclusions 7.6 Internal soundness 7.7 Surface quality. 7.8 Decarburization 6 7.9 Shape, dimensions and tolerances 8 Inspection 8.1 Testing procedures and types of documents . 8.2 Frequency of testing... 8.3 Specific inspection and testing... 8.3.1 Verification of the hardness and mechanical properties 8.3.2 Visual and dimensional inspection . 9 Test methods 9.1 Chemical analysis. 9.2 Hardness and mechanical tests. 9.2.1 Hardness 9.2.2 Mechanical tests 9.2.3 Impact test. 9.3 Retests 8 10 Marking 8 Annex A (normative) Ruling sections for mechanical properties .18 Annex B (normative) Supplementary or special requirements 22 @IS0 2017 - All rights reserved ii IS0 683-5:2017(E) Annex C (informative) Designation of steels given in this document and of comparable grades covered in various designation systems... *24 Annex D (informative) Dimensional standards applicable to products complying with this document. 25 Bibliography 26 Get more FREE standards from Standard Sharing Group and our chats iv CIs02017-Allrightsreserved