標準號：BS EN 10343-2009
中文標準名稱：建筑用淬火和回火鋼.技術交貨條件
英文標準名稱：Steels for quenching and tempering for construction purposes - Technical delivery conditions
標準類型：H40
發布日期：2009/4/30 12:00:00
實施日期：2009/4/30 12:00:00
中國標準分類號：H40
國際標準分類號：77.140.10
引用標準：EN 10002-1;EN 10020-2000;EN 10021;EN 10027-1;EN 10027-2;EN 10045-1;EN 10052-1993;EN 10079-2007;EN 10083-1-2006;EN 10083-2-2006;EN 10083-3-2006;EN 10160;EN 10163-2;EN 10204;EN 10221;EN 10308;EN ISO 377-1997;EN ISO 643;EN ISO 3887;EN ISO 9001-2008;EN ISO 14
適用范圍：This document specifies the technical delivery requirements for the following steel products intended for use inthe 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 directhardening alloy steels for quenching and tempering and supplied in one of the heat treatment conditions givenfor the different types of products in Table 1.These steels are generally intended for the manufacture of quenched and tempered parts, but can also beused 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. Thedifferences between quality and special steels are characterized by the following requirements, which are valid for specialsteels only:? the minimum impact values in the quenched and tempered condition (for non alloy special steels in the case of meanpercentages 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 noadditional 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 inEN 10021 will be applicable unless otherwise specified.