BS EN 10083-3:2006 – Steels for quenching and tempering — Part 3: Technical delivery conditions for alloy steels

1 Scope
This part of EN 1 0083, in addition to Part 1 , specifies the technical delivery requirements for:
semi-finished products, hot formed, e.g. blooms, billets, slabs (see NOTES 2 and 3 in EN 1 0083-1 :2006,Clause 1 ),
bars (see NOTE 2 in EN 1 0083-1 :2006, Clause 1 ),
rod,
wide flats,
hot-rolled strip and sheet/plate,
forgings (see NOTE 2 in EN 1 0083-1 :2006, Clause 1 ),
manufactured from the direct hardening alloy steels for quenching and tempering and the alloy flame and induction hardening steels and supplied in one of the heat treatment conditions given for the different types of products in Table 1 , lines 2 to 6, and in one of the surface conditions given in Table 2.
The steels are generally intended for the fabrication of quenched and tempered, flame or induction hardened machine parts.
The requirements for mechanical properties given in this document are restricted to the sizes given in Table 8.
NOTE This document does not apply for bright steel products. For bright steel products EN 1 0277-1 and EN 1 0277-5 apply.
In special cases, variations in these technical delivery requirements or additions to them may be agreed at the time of enquiry and order (see Annex A).
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
EN 1 0002-1 , Metallic materials – Tensile testing – Part 1: Method of test at ambient temperature
EN 1 0020, Definition and classification of grades of steel
EN 1 0027-1 , Designation systems for steels – Part 1: Steel names
EN 1 0027-2, Designation systems for steels – Part 2: Numerical system
EN 1 0045-1 , Metallic materials – Charpy impact test – Part 1: Test method
EN 1 0083-1 :2006, Steels for quenching and tempering – Part 1: General technical delivery conditions
EN 1 01 60, Ultrasonic testing of steel flat product of thickness equal or greater than 6 mm (reflection method)
EN 1 01 63-2, Delivery requirements for surface condition of hot-rolled steel plates, wide flats and sections – Part 2: Plate and wide flats
EN 1 0204, Metallic products – Types of inspection documents
EN 1 0221 , Surface quality classes for hot-rolled bars and rods – Technical delivery conditions
CR 1 0261 , ECISS Information Circular 11 – Iron and steel – Review of available methods of chemical analysis
EN 1 0308, Non destructive testing – Ultrasonic testing of steel bars
EN ISO 377, Steel and steel products – Location and preparation of samples and test pieces for mechanical
testing (ISO 377:1997)
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 643:2003)
EN ISO 3887, Steels – Determination of depth of decarburization (ISO 3887:2003)
EN ISO 6506-1 , Metallic materials – Brinell hardness test – Part 1: Test method (ISO 6506-1:2005)
EN ISO 6508-1 :2005, Metallic materials – Rockwell hardness test – Part 1: Test method (scales A, B, C, D, E,F, G, H, K, N, T) (ISO 6508-1:2005)
EN ISO 1 4284, Steel and iron – Sampling and preparation of samples for the determination of chemical composition (ISO 14284:1996)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 1 0083-1 :2006 apply.
4 Classification and designation
4.1 Classification
All steel grades are classified according to EN 1 0020 as alloy special steels.
4.2 Designation
4.2.1 Steel names
For the steel grades covered by this document, the steel names as given in the relevant tables are allocated in accordance with EN 1 0027-1 .
4.2.2 Steel numbers
For the steel grades covered by this document, the steel numbers as given in the relevant tables are allocated in accordance with EN 1 0027-2.
BS EN 10083-3:2006 – Steels for quenching and tempering — Part 3: Technical delivery conditions for alloy steels006