ONORM EN 10083-1 : 2006

      Committees responsible
      National foreword
      Foreword
1 Scope
2 Normative references
3 Definitions
      3.1 Quenched and tempered steels
      3.2 Product form
      3.3 Types of heat treatment
      3.4 Unalloyed and alloyed steel
      3.5 Ruling section for heat treatment
4 Designation and ordering
5 Requirements
      5.1 Manufacturing process
      5.2 Chemical composition, hardenability and mechanical
             properties
      5.3 Technological properties
      5.4 Structure
      5.5 Internal soundness
      5.6 Surface quality
      5.7 Dimensions, tolerances on dimensions and shape tolerances
      5.8 Cast separation
6 Testing and conformity of products with the requirements
      6.1 Testing procedures and types of documents
      6.2 Specific inspection and testing
7 Marking
Annexes A (normative) Ruling sections for mechanical properties
Annexes B (normative) Supplementary or special requirements
Annexes C (informative) Other relevant standards
Annexes D (informative) Dimensional standards applicable to products
                        complying with this European Standard
Annexes E (informative) Comparison of steel grades specified in this
                        European Standard and ISO 683-1 and other steel
                        grades previously standardized nationally
Annexes F (normative) Determining the non-metallic inclusion content
National Appendix NA (informative)
National Appendix NB (informative)
National Appendix NC (informative)

Provides the general technical delivery requirements for - semi-finished products, hot formed, e.g. blooms, billets, slabs, - bars, - rod, - wide flats, - hot-rolled strip and sheet/plate, - forgings manufactured from the direct hardening non alloy steels for quenching and tempering (see EN 10083-2), the direct hardening alloy steels for quenching and tempering (see EN 10083-3), the non alloy flame and induction hardening steels (see EN 10083-2) and the alloy flame and induction hardening steels (see EN 10083-3), and supplied in one of the heat treatment conditions given for the different types of products in the relevant tables of EN 10083-2 and EN 10083-3 and in one of the surface conditions given in the relevant tables of EN 10083-2 and EN 10083-3.