What is BS EN 10343 - Quenching and tempering about?
BS EN 10343 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. These steels are generally intended for the manufacture of quenched and tempered parts, but can also be used in the normalized condition.
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: BS EN 10343 does not apply to bright steel products
NOTE 3: BS EN 10343 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)
Who is BS EN 10343 - Quenching and tempering for?
BS EN 10343 on steels for quenching and tempering for construction purposes is relevant to:
- Steel manufacturers
- Metallurgist
- Mechanical engineers
- Civil engineers
Why should you use BS EN 10343 - Quenching and tempering?
Quenching and tempering are processes that strengthen materials like steel and other iron-based alloys. These processes strengthen the alloys by heating the material while simultaneously cooling it in water, oil, forced air, or gases such as nitrogen.
BS EN 10343 provides guidance on classification and designation, manufacturing process, requirements, inspection, evaluation of conformity, preparation of samples and test pieces, testing on compliance criteria, marking, labeling, packaging.
As a user of BS EN 10343, you can be ensured of the technical delivery requirements for the following steel products. With obedience and compliance to BS EN 10343, you can efficiently perform quenching and tempering of steel. With BS EN 10343 you can be ensured that the products consistently meet quality assurance targets. BS EN 10343 provides you with comprehensive information useful throughout the process of production.
