热处理钢、合金钢和易切削钢.第1部分:淬火和回火用非合金钢

[中文适用范围]： 本部分ISO 683规定了技术交付要求，适用于半成品、热成型产品（如钢坯、方坯、板坯）、棒材、线材、扁平成品以及锤锻或落锻件等，这些产品由直接淬火非合金钢和非合金火焰及感应淬火钢制成，并按照表1中的热处理条件和表2中的表面条件供应。钢材通常用于制造淬火和回火或等温淬火零件，也可在正火条件下部分使用。本部分ISO 683的机械性能要求仅限于表9和表10中给出的尺寸范围。本部分不适用于冷镦用光亮产品和棒材及线材。特殊情况下，技术交付要求的变更或补充需在询价和订单时由制造商和采购方协商确定。 [外文原描述]： ISO 683-1:2016 specifies the technical delivery requirements for - semi-finished products, hot formed, e.g. blooms, billets, slabs (see Note 1), - bars (see Note 1), - wire rod, - finished flat products, and - hammer or drop forgings (see Note 1) manufactured from the direct hardening non-alloy steels and the non-alloy flame- and induction-hardening steels listed in Table 3 and supplied in one of the heat-treatment conditions given for the different types of products in Table 1 and in one of the surface conditions given in Table 2. The steels are, in general, intended for the manufacture of quenched and tempered or austempered (see 3.2 and Note 2) and flame- or induction-hardened machine parts (see Tables 9 and 11), but can also be partly used in the normalized condition (see Table 10). The requirements for mechanical properties given in ISO 683-1:2016 are restricted to the sizes given in Tables 9 and 10. NOTE 1 Hammer-forged semi-finished products (blooms, billets, slabs, etc.), seamless rolled rings and hammer-forged bars are, in the following, covered under semi-finished products or bars and not under the term "hammer and drop forgings". NOTE 2 For the purposes of simplification, the term "quenched and tempered" is, unless otherwise indicated, used in the following also for the austempered condition. NOTE 3 For International Standards relating to steels complying with the requirements for the chemical composition in Table 3, however, supplied in other product forms or treatment conditions than given above or intended for special applications, and for other related International Standards, see the Bibliography. NOTE 4 ISO 683-1 :2016 does not apply to bright products and bars and wire rod for cold heading. For such products, see ISO 683‑18 and ISO 4954. In special cases, variations in these technical delivery requirements or additions to them can form the subject of an agreement between the manufacturer and purchaser at the time of enquiry and order (see 5.2 and Annex B). In addition to ISO 683-1:2016, the general technical delivery requirements of ISO 404 are applicable.