1.1 This 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 I European 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 2 Hammer-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 3 Special agreements shall be made when ordering non-deformed continuously cast semi-finished products.
NOTE 4 In accordance with EN 10020, the steels covered by this European Standard are special steels.
1.2 In 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).
1.3 In addition to the specifications of this European Standard, the general technical delivery requirements
of EN 10021 are applicable, unless otherwise specified.
DIN EN 10084:2008 Referenced Document
EN 10020 Definition and classification of grades of steel
EN 10021 General technical delivery conditions for steel products*, 2024-04-19 Update
EN 10027-1 Designation Systems for Steels - Part 1: Steel Names
EN 10027-2 Designation systems for steels - Part 2: Numerical system*, 2015-04-01 Update
EN 10052 Vocabulary of Heat Treatment Terms for Ferrous Products
EN 10160 Ultrasonic testing of steel flat product of thickness equal or greater than 6 mm (reflection method)
EN 10163-2 Delivery requirements for surface condition of hot-rolled steel plates, wide flats and sections - Part 2: plate and wide flats*, 2024-04-19 Update
EN 10204 Metallic products - Types of inspection documents*, 2024-04-19 Update
EN 10221 Surface quality classes for hot-rolled bars and rods - Technical delivery conditions
EN 10247:2007 Micrographic examination of the non-metallic inclusion content of steels using standard pictures
EN 10308 Non destructive testing - Ultrasonic testing of steel bars*, 2024-04-19 Update
EN ISO 14284 Steel and iron - Sampling and preparation of samples for the determination of chemical composition (ISO 14284:2022)*, 2022-11-16 Update
EN ISO 377 Steel and steel products - Location and preparation of samples and test pieces for mechanical testing*, 2017-07-01 Update
EN ISO 642 Steel - Hardenability Test by End Quenching (Jominy Test) ISO 642: 1999
EN ISO 643 Steels - Micrographic determination of the apparent grain size (ISO 643:2019, Corrected version 2020-03)*, 2020-01-15 Update
EN ISO 6506-1 Metallic materials - Brinell hardness test - Part 1: Test method*, 2014-09-01 Update
EN ISO 6508-1 Metallic materials - Rockwell hardness test - Part 1: Test method (ISO 6508-1:2023)*, 2023-12-20 Update
DIN EN 10084:2008 history
2018DIN EN ISO 683-3:2018 Heat-treatable steels, alloy steels and free-cutting steels - Part 3: Case-hardening steels (ISO 683-3:2016); German version EN ISO 683-3:2018
2008DIN EN 10084:2008 Case hardening steels - Technical delivery conditions; English version of DIN EN 10084:2008-06
1998DIN EN 10084:1998 Case hardening steels - Technical delivery conditions; German version EN 10084:1998
1986DIN 17210:1986 Case hardening steels; technical delivery conditions