Applies to wrought unalloyed and alloyed steels delivered as wire rods, wire or bars. The five sections cover the following topics: general requirements; steels not intended for heat treatment (diameters from 2 mm to 100 mm); case-hardening steels (diameters from 2 mm to 100 mm); steels for quenching and tempering including boron treated steels (diameters from 2 mm to 100 mm); stainless steels (diameters of 2 mm up to 25 mm for ferritic, up to100 mm for martensitic, and up to 50 mm for austenitic steels).