SIST EN 10343:2009

Oznaka standarda: SIST EN 10343:2009
Koda projekta: EC023050
Organizacija: SIST
Naslov (angleški): Steels for quenching and tempering for construction purposes - Technical delivery conditions
Naslov (slovenski): Konstrukcijska jekla za poboljšanje - Tehnični dobavni pogoji
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Ime Jezik Status Cena Dodaj v košarico
SIST EN 10343:2009 angleški jezik Active SIST-H: 71.50 EUR
Tehnični odbor: IFEK - Železne kovine
ICS: 77.140.10
Status: Objavljen
Objavljen: 01-jun-2009
Refer. št. objave: Sporočila 2009-06
Področje projekta (angleško): This document specifies the technical delivery requirements for - bars (see NOTE 1); - wide flats; - hot-rolled strip and sheet/plate; - forgings (see NOTE 1) 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 Hammer forged semi-finished products (blooms, billets, slabs etc.) and hammer forged bars are in the following covered under semi-finished products or bars and not under the term "forgings". NOTE 2 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 3 This standard does not apply for bright steel products and not for bars for cold heading and cold extrusion. NOTE 4 This standard only applies for the manufacture of products without any further cold or hot formation 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 are applicable unless otherwise specified.

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