EN 10084:2008

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 Melting process
  6.2 Deoxidation
  6.3 Manufacture of the product
  6.4 Heat-treatment condition and surface finish at
      the time of delivery
  6.5 Cast separation
7 Requirements
  7.1 Chemical composition, hardness and hardenability
  7.2 Technological properties
  7.3 Structure
  7.4 Internal soundness
  7.5 Surface condition
  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) - Options
Annex B (informative) - Dimensional standards applicable to
                        products complying with this
                        European Standard
Annex C (normative) - Determining the microscopic non-metallic
                      inclusions content
Annex D (informative) - Comparison of steel grades specified in
                        this European Standard and ISO 683-11:1987
                        and other steel grades previously
                        standardized nationally
Annex E (informative) - Classification of steel grades according
                        to minimum tensile strength as a
                        function of diameter after hardening
                        and tempering at 200 degree C
Bibliography

1.1This European Standard gives the technical delivery requirements for:-semi-finished products, hot formed, for example blooms, billets, slabs (see NOTE 2 and NOTE 3),-bars (see NOTE 2),-rod,-wide flats, quarto plates,-hot-rolled sheet/plate and strip,-hammer and drop forgings (see NOTE 2),manufactured from the case hardening non alloyed or alloyed steels (see NOTE 4) listed in Table 3 and sup-plied in one of the heat treatment conditions given for the different types of products in Table 1, lines 2 to 7 and in one of the surface conditions given in Table 2.The steels are in general intended for the fabrication of case-hardened (see Clause 3) machine parts.NOTE 1European Standards relating to steels complying with the requirements for the chemical composition in Ta-ble 3 but which are supplied in other product forms or treatment conditions than given above or are intended for special applications, and European Standards for similar steel grades are listed in the Bibliography.NOTE 2Hammer-forged semi-finished products (blooms, billets, slabs, etc.), seamless rolled rings and hammer-forged bars are included under semi-finished products or bars and not under the term "hammer and drop forgings".NOTE 3Special agreements shall be made when ordering non-deformed continuously cast semi-finished products.NOTE 4In accordance with EN 10020, the steels covered by this European Standard are special steels.1.2In special cases variations in these technical delivery requirements or additions to them may form the subject of an agreement at the time of enquiry and order (see Annex A).1.3In addition to the specifications of this European Standard, the general technical delivery requirements of EN 10021 are applicable, unless otherwise specified.