BS EN 10343:2009

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Classification and designation
5 Designation to be used on ordering
6 Manufacturing process
7 Requirements
8 Inspection
9 Evaluation of conformity
10 Preparation of samples and test pieces
11 Testing on compliance criteria
12 Marking, labelling, packaging
Annex A (normative) - Ruling sections for the mechanical
                      properties
      A.1 Terms and Definitions
      A.2 Determination of the diameter of the equivalent
          ruling section
Annex B (normative) - Dimensional standards applicable to
                      products complying with this
                      European Standard
Annex ZA (informative) - Relationship between this European
                         Standard and the Essential
                         Requirements of EU Directive 89/106/EEC,
                         EU Construction Products Directive
      ZA.1 Scope and relevant characteristics
      ZA.2 Procedures for the attestation of conformity of
           structural metallic construction products
      ZA.3 CE marking and labelling

Describes the technical delivery requirements for the following steel products intended for use in the construction industry: - bars (including hammer-forged bars); - wide flats; - hot-rolled strip and sheet/plate; - forgings.

This document specifies the technical delivery requirements for the following steel products intended for use in the construction industry: bars (including hammer-forged bars); wide flats; hot-rolled strip and sheet/plate; forgings. They are manufactured from the direct hardening non alloy steels for quenching and tempering and the direct hardening alloy steels for quenching and tempering and supplied in one of the heat treatment conditions given for the different types of products in Table 1. These steels are generally intended for the manufacture of quenched and tempered parts, but can also be used in the normalized condition. The requirements for mechanical properties are restricted to part sizes given in Tables 4 and 5. NOTE 1 In accordance with EN 10020, the steels covered by this standard are quality and special steels. The differences between quality and special steels are characterized by the following requirements, which are valid for special steels only: ? the minimum impact values in the quenched and tempered condition (for non alloy special steels in the case of mean percentages by mass of carbon < 0,50 % only); ? limited oxide inclusion content; ? lower maximum contents for phosphorus and sulphur. NOTE 2 This standard does not apply for bright steel products. NOTE 3 This standard only applies for the manufacture of products without any further cold or hot forming and no additional heat treatment, i.e. the properties are according to the delivery condition (+N, +QT). In addition to the specifications of this European Standard, the general technical delivery conditions given in EN 10021 will be applicable unless otherwise specified.