SR EN ISO 683-2:2018

Heat-treatable steels, alloy steels and free-cutting steels - Part 2: Alloy steels for quenching and tempering (ISO 683-2:2016)

ISO 683-2:2016 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 alloy steels and the 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 8 and 9). The requirements for mechanical properties given in ISO 683-2:2016 are restricted to the sizes given in the relevant Table 8. 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

38.12

Status : Valid
Approval date : 11/29/2018
Number of pages : 53
ICS : 77.140.10 Heat-treatable steels,77.140.20 Stainless steels,77.140.45 Non- alloved steels
Technical Committee : 42 - Steels and ferroalloy

Relations with other standards: