Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Classification and designation
4.1 Classification
4.2 Designation
5 Information to be supplied by the purchaser
5.1 Mandatory information
5.2 Options
6 Manufacturing process
6.1 General
6.2 Deoxidation
6.3 Heat-treatment and surface condition at delivery
7 Requirements
7.1 Chemical composition, hardness and hardenability
7.2 Shearability
7.3 Structure
7.4 Internal soundness
7.5 Surface quality and decarburisation
7.6 Dimensions, tolerances on dimensions and shape
8 Inspection and testing
8.1 Types and contents of inspection documents
8.2 Specific inspection and testing
9 Marking
Annex A (normative) Supplementary or special requirements
A.1 Content of no-metallic inclusions
A.2 Non-destructive testing
A.3 Product analysis
A.4 Special agreements for marking
Annex B (informative) Maximum dimensions for rounds and flats
based on the 100% hardenability scatterband (see Table 7)
Annex C (informative) Dimensional standards applicable to
products complying with this European Standard
Annex D (informative) Guidance values for the mechanical
properties of quenched and tempered test pieces
(maximum dimensions as given in Table 5)
Bibliography