标准编号：ISO 683-4:2014
中文名称：热处理钢、合金钢和易切钢 第4部分：易切削钢
英文名称：Heat-treatable steels, alloy steels and free-cutting steels — Part 4: Free-cutting steels
发布日期：2014-08
标准范围
This part of ISO 683 gives the technical delivery requirements for semi-finished products (e.g. blooms,billets, slabs), bars, and wire rod, manufactured from the free-cutting steels listed in Table 2 and suppliedin one of the treatment conditions given for the different types of products in Table 1, rows 2 to 4.This part of ISO 683 covers three groups of free-cutting steels for mechanical purposes as listed inTable 2, namelya) not intended for heat treatment,b) suitable for case-hardening, andc) suitable for quenching and tempering.Free-cutting steels are often used as bright bars. For these products please refer to ISO 683-18.In special cases, variations in these technical delivery requirements or additions to them can form thesubject of an agreement at the time of enquiry and order (see Annex B).In addition to this part of ISO 683, the general technical delivery requirements of ISO 404 are applicable.
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